You have a choice of two base maps
This map offers you a choice of several base maps: 1) the realistic areial sattellite map your are viewing, or 2) the more detailed DeLome seafloor map, or 3) the ESRI Oceans map. The later two contain information that confirms the placemarks. You can switch base maps by selecting base overlay map at the bottom of the map list.
The default for the satellite version of the map is to zoom in close on the details, however, some features of the ocean bottom will require you to zoom out to see the to see a wider area.

Defininitons for Plateaus, Ridges and Selfs
- Oceanic Plateaus (Orange Squares):
A large, relatively flat submarine region that rises well above the level of the ambient seabed.[1] While many oceanic plateaus are composed of continental crust, and often form a step interrupting the continental slope, some plateaus are undersea remnants of large igneous provinces.
- Mid-Ocean Ridges (Red Stars):
Underwater mountain system that consists of various mountain ranges (chains), typically having a valley  known as a rift running along its spine, formed by plate tectonics.
- Continental Shelf (Blue Squares):
The extended perimeter of each continent and associated coastal plain. Much of the shelf was exposed during glacial periods, but is now submerged under relatively shallow seas) (known as shelf seas) and gulfs, and was similarly submerged during other interglacial periods.

Definition of Canyons, Basins, Abyssal Plains and Trenchs
- Submarine Canyons (Green Dot):
A steep-sided valley cut into the sea floor of the continental slope, sometimes extending well onto the continental shelf.  Some submarine canyons are found as extensions to large rivers, however most of them have no such association.
- Oceanic Trenches (Yellow Dots):
Hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Up to 35,000 feet or more.
- Oceanic Basins (Blue Dots):
Hydrologically, oceanic basins include the flanking continental shelves and shallow, epeiric seas.
- Abyssal Plains (Green Stars):
An underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 meters. (9,842 feet to 19,685 feet)

Definition of Seamount
Wikipedia (http://en.wikipedia.org/wiki/Seamount)
A seamount is a mountain rising from the ocean seafloor that does not reach to the water's surface (sea level), and thus is not an island. These are typically formed from extinct volcanoes, that rise abruptly and are usually found rising from theseafloor to 1,000-4,000 metres (3,000-13,000 ft) in height. They are defined by oceanographers as independent features that rise to at least 1,000 metres (3,281 ft) above the seafloor.

Why so few Abyssal Plains in the Pacific Ocean?
Abyssal planes are created because sediment buries the otherwise rugged topography of the ocean crust. This sediment is transported largely by things called turbidity currents. The Atlantic basin is ringed primarily by passive continental margins which allow these currents to transport the sediments well out into the basins. However, the Pacific ocean is ringed primarily by subduction zones. Subduction zones are usually marked by features that we call deep ocean trenches. These trenches are the deepest features of the ocean basins. As turbidity currents come off the continental margins in the Pacific, they usually continue down into the trenches where they become trapped. Therefore, the sediment they carry does no make it out into the Pacific basin. This is why there are fewer abyssal plains in the Pacific than there are in the Atlantic.
Source.

Major Ocean Currents
Wikipedia (http://en.wikipedia.org/wiki/Ocean_current)

Ocean Current Thermohaline Circulation
Wikipedia (https://en.wikipedia.org/wiki/Thermohaline_circulation)
Thermohaline circulation (THC) is a part of the large-scale ocean circulation that is driven by global density gradients created by surface heat and freshwater fluxes.[1][2] The adjective thermohaline derives from thermo- referring to temperature and -haline referring to salt content, factors which together determine the density of sea water. Wind-driven surface currents (such as the Gulf Stream) travel polewards from the equatorial Atlantic Ocean, cooling en route, and eventually sinking at high latitudes (forming North Atlantic Deep Water). This dense water then flows into the ocean basins. While the bulk of it upwells in the Southern Ocean, the oldest waters (with a transit time of around 1000 years)[3] upwell in the North Pacific.[4] Extensive mixing therefore takes place between the ocean basins, reducing differences between them and making the Earth's oceans a global system. On their journey, the water masses transport both energy (in the form of heat) and matter (solids, dissolved substances and gases) around the globe. As such, the state of the circulation has a large impact on the climate of the Earth

Lucky Strike - Hydrothermal Vent
More locations of hydrothermal vents ee the map The Submarine Topography of Hydrothermal Vents and Cold Seeps and the likey Origins of Life (http://climateviewer.org/index.html?layersOn=mrm-126)
Wikipedia (http://en.wikipedia.org/wiki/Hydrothermal_vents)
A hydrothermal vent is a fissure in a planet's surface from which geothermally heated water issues. Hydrothermal vents are commonly found near volcanically active places, areas where tectonic plates are moving apart, ocean basins, and hotspots. Hydrothermal vents exist because the earth is both geologically active and has large amounts of water on its surface and within its crust. Common land types include hot springs, fumaroles and geysers. Under the sea, hydrothermal vents may form features called black smokers. Relative to the majority of the deep sea, the areas around submarine hydrothermal vents are biologically more productive, often hosting complex communities fueled by the chemicals dissolved in the vent fluids. Chemosynthetic bacteria and archaea form the base of the food chain, supporting diverse organisms, including giant tube worms, clams, limpets and shrimp. Active hydrothermal vents are believed to exist on Jupiter's moon Europa, and ancient hydrothermal vents have been speculated to exist on Mars.[1]
Cited Location Sources:
Williams, 1988; Guinot, 1990; Martin &
Christiansen, 1995; Chevaldonné & Olu,
1996; Biscoito, 1997, in Desbruyères &
Segonzac, 1997; Shank, 1997, in
Desbruyères & Segonzac, 1997; Martin
et al., 1998b; Komai & Segonzac, 2003

Green Canyon - Cold Seep
More locations of cold seeps see the map The Submarine Topography of Hydrothermal Vents and Cold Seeps and the likey Origins of Life (http://climateviewer.org/index.html?layersOn=mrm-126)
Wikipedia (http://en.wikipedia.org/wiki/Cold_seeps)
A cold seep (sometimes called a cold vent) is an area of the ocean floor wherehydrogen sulfide, methane and other hydrocarbon-rich fluid seepage occurs, often in the form of a brine pool. "Cold" does not mean temperature of seepage is lower than surrounding sea water. On the contrary, its temperature is often slightly higher.[1] Cold seeps constitute a biome supporting several endemic species.Cold seeps develop unique topography over time, where reactions between methane and seawater create carbonate rock formations and reefs. These reactions may also be dependent on bacterial activity. Ikaite, a hydrous calcium carbonate, can be associated with oxidizing methane at cold seeps.
Cited Location Sources:
Williams, 1988; MacDonald et al., 1989;
Carney, 1994; Bergquist et al., 2003;
Felder & Kensley, 2004

Concentrated area of Mass Whale Strandings
New Zealand, Chatham Island and Tasmania are a zone where the most mass whale strandings have taken place. More mass strandings have taken place in this zone than any where else on Earth. The undersea geology unique to this zone of plateaus and nearby seamounts may be the reason.
See this map of Mass Whale Stranding Sites (http://climateviewer.org/index.html?layersOn=mrm-122)

Adare Seamounts
Wikipedia (http://en.wikipedia.org/wiki/Adare_Seamounts)

Arago Seamount

Balleny Seamounts
Wikipedia (http://en.wikipedia.org/wiki/Balleny_Seamounts)

Barsukov Seamount
Wikipedia (http://en.wikipedia.org/wiki/Barsukov_Seamount)

Bear Guyot
Wikipedia (http://en.wikipedia.org/wiki/Bear_Seamount)

Belgica Guyot
Wikipedia (http://en.wikipedia.org/wiki/Belgica_Guyot)

Bowie Seamount
Wikipedia (http://en.wikipedia.org/wiki/Bowie_Seamount)

Cordell Bank
Wikipedia
Zoom back out to see the undersea mountians.

Cortes Bank
Wikipedia (http://en.wikipedia.org/wiki/Cortes_Bank)

Crough Seamount

Dallmann Seamount
Wikipedia (http://en.wikipedia.org/wiki/Dallmann_Seamount)

Davidson Seamount
Wikipedia (http://en.wikipedia.org/wiki/Davidson_Seamount)

Dequey submarine volcano
Information (http://www.enotes.com/topic/Dequey_(submarine_volcano))

Explorer Seamount
Wikipedia (http://en.wikipedia.org/wiki/Explorer_Seamount)

Gascoyne Seamount, 39

Hakurei Seamount
Wikipedia (http://en.wikipedia.org/wiki/Hakurei_Seamount)

Harve Seamount
Huffington Post: Pumice 'Raft' Floating Off New Zealand Coast Created By Undersea Volcano Eruption, Researchers Say
Wikipedia

Hawaiian–Emperor seamount chain

Hunga Tonga-Hunga Ha'apai erupts - 2009 - creating a new island (viewable)
atlasobscura.com
In March of 2009, Hunga Tonga-Hunga Ha'apai erupted for several days, sending a violent stream of steam, rocks, and ash thousands of feet into the air. For days, huge columns of smoke and ash were seen rising from the Pacific ocean.
Geologists confirmed that the eruption came from two volcanic vents, one that was located on Hunga Ha'apai, and another located 100m (330 ft) offshore. The two vents ejected so much debris, however, that they created a new land mass between them. Though the eruption wiped out all signs of wildlife on the original islet, the "new" island added hundreds of square meters to Hunga Ha'apai.
Wikipedia (http://en.wikipedia.org/wiki/Hunga_Tonga)

Iselin Seamount
Wikipedia (http://en.wikipedia.org/wiki/Iselin_Seamount)

Kavachi submarine volcano
Kavachi on Wikipedia (http://en.wikipedia.org/wiki/Kavachi)

Kick-'em-Jenny submarine volcano
Kick-'em-Jenny on Wikipedia (http://en.wikipedia.org/wiki/Kick-'em-Jenny)

Kolumbo submarine volcano
Kolumbo on Wikipedia (http://en.wikipedia.org/wiki/Kolumbo_(volcano))

Lōʻihi Seamount submarine volcano
Lōʻihi Seamount on Wikipedia (http://en.wikipedia.org/wiki/L%C5%8D%CA%BBihi_Seamount)

Marsili
Wikipedia (http://en.wikipedia.org/wiki/Marsili)

Niue Island created by submarine volcano
Information (http://www.niuetotal.com/location-ing.htm)

Orca Seamount
Wikipedia (http://en.wikipedia.org/wiki/Orca_Seamount)

Pasco Banks
Wikipedia (http://en.wikipedia.org/wiki/Pasco_banks)

Patton Seamount
Wikipedia (http://en.wikipedia.org/wiki/Patton_Seamount)

Pioneer Seamount
Wikipedia (http://en.wikipedia.org/wiki/Pioneer_Seamount)

Shatsky Rise submarine super volcano
Shatsky Rise on Wikipedia (http://en.wikipedia.org/wiki/Shatsky_Rise)
Supervolcano Shatshy Rise

Vailulu'u Seamount
Wikipedia (http://en.wikipedia.org/wiki/Vailulu%27u)

Vema Seamount
Wikipedia (http://en.wikipedia.org/wiki/RV_Vema#Seafloor_features)

West Mata submarine volcano
West Mata on Wikipedia (http://en.wikipedia.org/wiki/West_Mata)

Galápagos hotspot and hydrothermal vents
Wikipedia (http://en.wikipedia.org/wiki/Galapagos_Rift)
The Galápagos hotspot is a volcanic hotspot in the East Pacific Ocean responsible for the creation of the Galapagos Islands as well as three major aseismic ridge systems, Carnegie, Cocos and Malpelso which are on two tectonic plates. The hotspot is located near the Equator on the Nazca Plate not far from the divergent plate boundary with theCocos Plate. The tectonic setting of the hotspot is complicated by the Galapagos Triple Junction of the Nazca and Cocos plates with the Pacific Plate. The movement of the plates over the hotspot is determined not solely by the spreading along the ridge but also by the relative motion between the Pacific Plate and the Cocos and Nazca Plates.
Bathymetric Data for the Galapagos Islands (http://commons.wikimedia.org/wiki/Galapagos_Islands)

Cove Hydrothermal Field
http://knowledgeweb.tk (http://knowledgeweb.tk/Abyssal_plain#Hydrothermal_vents)

Endeavour Hydrothermal Vents
Wikipedia (http://en.wikipedia.org/wiki/Endeavour_Hydrothermal_Vents)

Logatchev Vent Field

Lost City (hydrothermal field)
Wikipedia (http://en.wikipedia.org/wiki/Lost_City_(hydrothermal_field)
hoi.edu (http://www.whoi.edu/oceanus/viewArticle.do?id=38007)
Hydrocarbons—molecules critical to life—areroutinely generated by the simple interaction of seawater with the rocks underthe Lost City hydrothermal vent field in the Atlantic Ocean, according toresearch led by the University of Washington and the Woods Hole OceanographicInstitution (WHOI).

Mid Pacific Mountains

Red Lion Hydrothermal Field
http://knowledgeweb.tk (http://knowledgeweb.tk/Abyssal_plain#Hydrothermal_vents)

Piccard Hydrothermal Vents
whoi.edu (http://www.whoi.edu/oceanus/viewArticle.do?id=149269)
The extreme depths and different mineral composition of the seafloor along the Mid- Cayman Rise have produced many different kinds of vents within a relatively short span of seafloor. Researchers on this cruise concentrated their efforts at two sites, one of which, the Piccard vent field, is the deepest known hydrothermal site, at nearly 5,000 meters (3.1 miles) deep. The fluids gushing from some of the vents at this site were found to be just above 400°C (750°F), among the hottest vents known.

East Flower Garden Bank

Rankin Bank

Stetson Bank

West Flower Garden Bank

Aleutian Trench
Aleutian Trench on Wikipedia (http://en.wikipedia.org/wiki/Aleutian_Trench)

Calypso Deep
Calypso Deep on Wikipedia (http://en.wikipedia.org/wiki/Calypso_Deep)

Cayman Trough
Cayman Trough on Wikipedia (http://en.wikipedia.org/wiki/Cayman_Trench)
Depth: 7,686 metres (25,217 ft

Diamantina Trench
Diamantina Trench on Wikipedia (http://en.wikipedia.org/wiki/Diamantina_Deep)

Hellenic Trench
Hellenic Trench on Wikipedia (http://en.wikipedia.org/wiki/Hellenic_Trench)

Hikurangi Trench
Hikurangi Trench on Wikipedia (http://en.wikipedia.org/wiki/Hikurangi_Trench)

Izu-Ogasawara Trench
Izu-Ogasawara Trench on Wikipedia (http://en.wikipedia.org/wiki/Izu-Ogasawara_Trench)

Japan Trench
Japan Trench on Wikipedia (http://en.wikipedia.org/wiki/Japan_Trench)

Kermadec Trench
Kermadec Trench on Wikipedia (http://en.wikipedia.org/wiki/Kermadec_Trench)

Kuril–Kamchatka Trench
Kuril–Kamchatka Trench on Wikipedia

Litke Deep
Litke Deep on Wikipedia (http://en.wikipedia.org/wiki/Litke_Deep)

Manila Trench
Manila Trench on Wikipedia (http://en.wikipedia.org/wiki/Manila_Trench)

Mariana Trench
Mariana Trench on Wikipedia (http://en.wikipedia.org/wiki/Mariana_Trench)
Mariana Trench Challenger Dive Animation (http://youtu.be/-ahdSPH1LdM)

Location of the Treiste Deep-sea Dive in 1960
Wikipedia Commons

New depth found to be 10,000m deeper
Background found on new depth that is 10,000m deeper.

Middle America Trench
Middle America Trench on Wikipedia (http://en.wikipedia.org/wiki/Middle_America_Trench)

Peru-Chile Trench
Peru-Chile Trench on Wikipedia (http://en.wikipedia.org/wiki/Peru-Chile_Trench)

Pliny Trench
Pliny Trench on Wikipedia (http://en.wikipedia.org/wiki/Hellenic_Trench)

Puerto Rico Trench
Puerto Rico Trench on Wikipedia (http://en.wikipedia.org/wiki/Puerto_Rico_Trench)
Puerto Rico Trench Animation (http://youtu.be/v1OnsuyFdaM)
Trench Depth: 8,800 metres (28,232 ft)

Romanche Trench
Romanche Trench on Wikipedia (http://en.wikipedia.org/wiki/Romanche_Trench)

Ryukyu Trench
Ryukyu Trench on Wikipedia (http://en.wikipedia.org/wiki/Ryukyu_Trench)

South Sandwich Trench
South Sandwich Trench on Wikipedia (http://en.wikipedia.org/wiki/South_Sandwich_Trench)
Depth: 8,428 metres

Strabo Trench
Strabo Trench on Wikipedia (http://en.wikipedia.org/wiki/Hellenic_Trench)

Sunda Trench
Sunda Trench on Wikipedia (http://en.wikipedia.org/wiki/Sunda_Trench)

Sunda Arc
Sunda Arc on Wikipedia (http://en.wikipedia.org/wiki/Sunda_Arc)

Tonga Trench
Tonga Trench on Wikipedia (http://en.wikipedia.org/wiki/Tonga_Trench)
Depth: 10,882 metres (35,702 ft) deep at its deepest point.

Yap Trench
Yap Trench on Wikipedia (http://en.wikipedia.org/wiki/Yap_Trench)

Amazon Canyon
Amazon Canyon on Wikipedia (http://en.wikipedia.org/wiki/Amazon_Canyon)

Bering Canyon

Congo (Zaire) Canyon

Ganges Canyon (Swatch of No Ground)
Giant submarine canyons:
Is size any clue to their importance in the rock record? / Page 4

Hudson Canyon
Hudson Canyon on Wikipedia (http://en.wikipedia.org/wiki/Hudson_Canyon)

Indus Canyon

Laurentian Channel
Giant submarine canyons:
Is size any clue to their importance in the rock record? / Page 10

Monterey Canyon
Monterey Canyon on Wikipedia (http://en.wikipedia.org/wiki/Monterey_Canyon)

Mukluk Channel
Geological processes on continental margins: sedimentation, mass-wasting and Stability / Page 46

Navarin Canyon
Navarin Canyon on Wikipedia (http://en.wikipedia.org/wiki/Navarin_Canyon)

La Jolla and Scripps Canyon
La Jolla and Scripps Canyon on Wikipedia (http://en.wikipedia.org/wiki/Scripps_Canyon)

Pribilof Canyon
Information - Greenpeace
Pribilof Canyon on Wikipedia (http://en.wikipedia.org/wiki/Pribilof_Canyon)

Surveyor Channel
Geological processes on continental margins: sedimentation, mass-wasting and Stability / Page 46

Zhemchug Canyon
Zhemchug Canyon on Wikipedia (http://en.wikipedia.org/wiki/Zhemchug_Canyon)

American-Antarctic Ridge (AAR)
American-Antarctic Ridge (AAR) on Wikipedia (http://en.wikipedia.org/wiki/American-Antarctic_Ridge)

Alden Ridge
Alden Ridge on Wikipedia (http://en.wikipedia.org/wiki/Aden_Ridge)

Central Indian Ridge
Central Indian Ridge on Wikipedia (http://en.wikipedia.org/wiki/Central_Indian_Ridge)

East Pacific Rise
East Pacific Rise on Wikipedia (http://en.wikipedia.org/wiki/East_Pacific_Rise)

Explorer Ridge
Explorer Ridge on Wikipedia (http://en.wikipedia.org/wiki/Explorer_Ridge)

Gorda Ridge
Gorda Ridge on Wikipedia (http://en.wikipedia.org/wiki/Gorda_Ridge)

Hawaiian Ridge

Juan de Fuca Ridge
Juan de Fuca Ridge on Wikipedia (http://en.wikipedia.org/wiki/Juan_de_Fuca_Ridge)

Mid-Atlantic Ridge
Mid-Atlantic Ridge on Wikipedia (http://en.wikipedia.org/wiki/Mid-Atlantic_Ridge)

Mid-Cayman Rise
Wikipedia (http://en.wikipedia.org/wiki/Cayman_Islands#Geography)
The Cayman Islands are located in the western Caribbean Sea and are the peaks of a massive underwater ridge, known as the Cayman Ridge (or Cayman Rise). This ridge flanks the Cayman Trough, 6,000 m (20,000 ft) deep[16] which lies 6 km (3.7 mi) to the south.[17]

Nazca Ridge
Wikipedia (http://en.wikipedia.org/wiki/Nazca_Ridge)

Northeast Pacific Basin

Norfolk Ridge
Norfolk Ridge on Wikipedia (http://en.wikipedia.org/wiki/Norfolk_Ridge)

Pacific–Antarctic Ridge
Pacific–Antarctic Ridge on Wikipedia (http://en.wikipedia.org/wiki/Pacific-Antarctic_Ridge)

Southeast Indian Ridge
Southeast Indian Ridge on Wikipedia (http://en.wikipedia.org/wiki/Southeast_Indian_Ridge)

Southeast Pacific Basin

Southwest Indian Ridge
Southwest Indian Ridge on Wikipedia (http://en.wikipedia.org/wiki/Southwest_Indian_Ridge)

Southwest Pacific Basin

Aleutian Basin
Aleutian Basin on Wikipedia (http://en.wikipedia.org/wiki/Aleutian_Basin)

Amerasian Basin
Amerasian Basin on Wikipedia (http://en.wikipedia.org/wiki/Amerasian_Basin)

Blake Basin
Blake Basin on Wikipedia (http://en.wikipedia.org/wiki/Blake_Basin)

Eurasian Basin
Eurasian Basin on Wikipedia (http://en.wikipedia.org/wiki/Eurasian_Basin)

Fram Basin

Herodotus Basin

Peru Basin

Rhodes Basin

South China Basin

Tsushima Basin

Yamato Basin

Agulhas Bank
Agulhas Bank on Wikipedia (http://en.wikipedia.org/wiki/Agulhas_Bank)

Alaskan Abyssal Plain

Alborán Abyssal Plain

Angola Abyssal Plain

Amundsen Abyssal Plain
Amundsen Plain on Wikipedia (http://en.wikipedia.org/wiki/Amundsen_Plain)

Argentine Abyssal Plain
Argentine Abyssal Plain on Wikipedia (http://en.wikipedia.org/wiki/Argentine_Abyssal_Plain)

Barracuda Abyssal Plain

Bellingshausen Abyssal Plain
Bellingshausen Plain on Wikipedia (http://en.wikipedia.org/wiki/Bellingshausen_Plain)

Biscay Abyssal Plain

Boreas Abyssal Plain

Canada Abyssal Plain

Cape Abyssal Plain

Cape Verde Abyssal Plain

Cascadia Abyssal Plain

Ceará Abyssal Plain

Ceylon Abyssal Plain

Chukchi Abyssal Plain

Colombian Abyssal Plain

Comoro Abyssal Plain

Cuvier Abyssal Plain

Demerra Abyssal Plain

Dumshaf Abyssal Plain

Enderby Abyssal Plain

Eratosthenes Abyssal Plain

Euxine Abyssal Plain
Euxine Abyssal Plain on Wikipedia (http://en.wikipedia.org/wiki/Euxine_abyssal_plain)

Fernando de Noronha Abyssal Plain

Ferradura Abyssal Plain

Florida Abyssal Plain

Guinea Abyssal Plain

Greenland Abyssal Plain

Gambia Abyssal Plain

Hatteras Abyssal Plain

Hispaniola Abyssal Plain

Horseshoe Abyssal Plain

Iberian Abyssal Plain

Mascarene Abyssal Plain

Mendeleyev Abyssal Plain

Gascoyne Abyssal Plain

Japan Abyssal Plain

Madeira AbyssaL Plain

Nares Abyssal Plain

Northwind Abyssal Plain

Oman Abyssal Plain

Panama Abyssal Plain

Papua Abyssal Plain

Pemambuco Abyssal Plain

Perth Abyssal Plain

Porcupine Abyssal Plain

Sardino-Balearic Abyssal Plain

Seine Abyssal Plain

Sicila Abyssal Plain

Sierra Leone Abyssal Plain

Sigsbee Deep Abyssal Plain

Silver Abyssal Plain

Sohm Abyssal Plain

Somali Abyssal Plain

South Australian Abyssal Plane

South Indian Abyssal Plain

Tagus Abyssal Plain

Tasman Abyssal Plain

Tufts Abyssal Plain

Tyrrhenian Abyssal Plain

Valdivia Abyssal Plain

Venezuelan Abyssal Plain

Weddell Abyssal Plain

Wrangella Terrane Abyssal Plain

Campbell Plateau
Campbell Plateau on Wikipedia (http://en.wikipedia.org/wiki/Campbell_Plateau)

Challenger Plateau
Challenger Plateau on Wikipedia (http://en.wikipedia.org/wiki/Challenger_Plateau)

Hikurangi Plateau
Hikurangi Plateau on Wikipedia (http://en.wikipedia.org/wiki/Hikurangi_Plateau)

Kerguelen Plateau
Kerguelen Plateau on Wikipedia (http://en.wikipedia.org/wiki/Kerguelen_Plateau)

Manihiki Plateau
Manihiki Plateau on Wikipedia (http://en.wikipedia.org/wiki/Manihiki_Plateau)

Mascarene Plateau
Mascarene Plateau on Wikipedia (http://en.wikipedia.org/wiki/Mascarene_Plateau)

Naturaliste Plateau
Naturaliste Plateau on Wikipedia (http://en.wikipedia.org/wiki/Naturaliste_Plateau)

Ontong Java Plateau
Ontong Java Plateau on Wikipedia (http://en.wikipedia.org/wiki/Ontong_Java_Plateau)

Continental Shelf

Continental Shelf (Typical)

Undersea tectonic plate boundaries and movement

1700 Cascadia undersea earthquake and tsunami ~9.0
Wikipedia (http://en.wikipedia.org/wiki/1700_Cascadia_earthquake)

1896 Meiji-Sanriku undersea earthquake - 8.5
Wikipedia (http://en.wikipedia.org/wiki/1896_Meiji-Sanriku_earthquake)

1929 Grand Banks undersea earthquake - 7.2
Wikipedia (http://en.wikipedia.org/wiki/1929_Grand_Banks_earthquake)

1944 Tōnankai undersea earthquake - 8.0
Wikipedia (http://en.wikipedia.org/wiki/1944_T%C5%8Dnankai_earthquake)

1946 Nankaidō undersea earthquake - 8.1
Wikipedia (http://en.wikipedia.org/wiki/1946_Nankaido_earthquake)

1960 Valdivia land-based earthquake and tsunami - 9.3
Wikipedia (http://en.wikipedia.org/wiki/1960_Valdivia_earthquake)

1960 Valdvia Earthquake generated Tsunami

2004 Indian Ocean undersea earthquake and tsunami - 9.3
Wikipedia (http://en.wikipedia.org/wiki/2004_Indian_Ocean_earthquake)

2004 Indian Ocean undersea earthquake generated tsunami

2006 Hengchun undersea earthquake - 7.1
Wikipedia (http://en.wikipedia.org/wiki/2006_Hengchun_earthquake)

2011 Tōhoku undersea earthquake and tsunami - 9.0
Wikipedia (http://en.wikipedia.org/wiki/2011_T%C5%8Dhoku_earthquake)

August 30, 2012 Undersea Earthquake

Oct. 16, 2012 Whangaparaoa Beach, New Zealand
stuff.co.nz
A group of long-finned pilot whales has been buried after stranding on a remote East Cape beach.
The 51 whales came ashore in two-metre swells at Whangaparaoa Beach, near Cape Runaway, early on Sunday, Department of Conservation Gisborne Whakatane marine ranger Jamie Quirk said.
Forty-four of the whales died relatively quickly from natural causes, while the other seven were injured during the stranding and were euthanised.

Undersea Earthquake - August 11, 2012
deafwhale.blogspot.com
PILOT WHALES BEACHED IN SCOTLAND WERE INJURED BY UNDERSEA QUAKE (see 9/3/2012)
The pod was previously injured by potent pressure changes (seaquakes) induced into the water by the following undersea earthquake: Magnitude mb 5.3 NORTHERN MID-ATLANTIC RIDGE
Location 1692 km W of Dublin at 52.21N; 31.46W

St. Andrews, Scotland - September 3, 2012
Daily News whales die in mass beaching in Scotland, including 3 calves
Sixteen whales were killed and ten others saved in a mass beaching on Scotland's east coast on Sunday, authorities said.
The 20-foot pilot whales became stranded in a small cove in the county of Fife - home to the famed Old Course at St. Andrew's golf course -- at around 7 a.m. local time, The Scotsman reported.

Undersea Earthquake - July 28, 2012
deafwhale.blogspot.com
TWO QUAKES CAUSE NEAR BEACHING IN CAPE VERDE ISLANDS (see 8/24/2012)
The two quakes that injured this pod occurred along the Central Mid Atlantic Ridge, just north of the equator at: 4:49N; 32:73W. The first event was a shallow, thrusting, magnitude 5.3 event; a quake most likely to injury diving whales. http://www.emsc-csem.org/Earthquake/earthquake.php?id=279748
The second event was a magnitude 4.9 occurring 17 minutes later.

Santa Maria Beach, Sal Island - August 24, 2012
deafwhale.blogspot.com (http://deafwhale.blogspot.com/)
TWO QUAKES CAUSE NEAR BEACHING IN CAPE VERDE ISLANDS
August 2012: The Cape Verde mass stranding of 17 pilot whales took place on Santa Maria Beach (Sal Island 16.590N; 22.900W) during early morning hours on August 24, 2012. The rescuers were able to push the whales back into deep water and they swam off with the surface flow.

Mendocino Fracture Zone
Wikipedia (http://en.wikipedia.org/wiki/Mendocino_Fracture_Zone)

Murray Fracture Zone

Molokai Fracture Zone

Clarion Fracture Zone

Clipperton Fracture Zone

Eltanin Fracture Zone

Udintsev Fracture Zone

Challenger Fracture Zone

Romanche Fracture Zone

Chain Fracture Zone

Boca Verde Fracture Zone

Ascension Fracture Zone