Home » Oceanography » Indian Ocean Tsunami Maps

Indian Ocean Tsunami Maps

Maps of Indian Ocean Tsunami Travel Times

Maps composed by NOAA using Tsunami Travel Time Software.

Subduction Zone and Volcanic Blast Earthquakes

Some of the world's most deadly tsunamis have been produced around the rim of the Indian Ocean. The December 26, 2004 tsunami that killed over 250,000 people was produced by a subduction zone earthquake on the west coast of Sumatra, Indonesia. On August 27, 1883 a blast at Krakatau Volcano in the Sunda Straight of Indonesia produced a tsunami that killed about 36,000 people. The maps below show approximate travel times for each of these tsunamis.

Sumatra, Indonesia - December 26, 2004
Indian Ocean tsunami from Sumatra Indonesia earthqake
A magnitude 9.4 Mw earthquake occurred off the west coast of Sumatra, Indonesia, on December 26, 2004. It was the fourth largest earthquake in the world since 1900 and the largest since the 1964 Prince William Sound, Alaska, earthquake. The earthquake generated a tsunami that caused more casualties than any other in recorded history. The tsunami was recorded nearly world-wide on tide gauges in the Indian, Pacific and Atlantic Oceans. In total, more than 283,100 people were killed, 14,1000 are still listed as missing and 1,126,900 were displaced by the earthquake and subsequent tsunami in 10 countries in South Asia and East Africa. NOAA image.

Find it on

More from

hardness picks
Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks.
Asteroid Impact Map
Asteroid Impact Map: Explore fifty of the most obvious asteroid impact craters on Earth.
Gold Pans and Panning Kits
Gold Pans and Panning Kits - classifiers, snuffer bottles. Pans sized for kids to Goliath.
Deepest Lake in the World
Deepest Lake in the World: Lake Baikal in southern Russia is the deepest lake in the World.
Blood Diamonds
Blood Diamonds are illegally-traded diamonds that are often used to fund conflict. allows you to support science projects proposed by K-12 teachers.
Herkimer Diamonds
Herkimer Diamonds are doubly-terminated quartz crystals mined in New York.
Pumice is a rock formed during explosive volcanic eruptions. It has a wide variety of uses.

Krakatau - August 27, 1883
Indian Ocean tsunami from Krakatau earthquake
The explosion of the Krakatau Volcano in Indonesia on August 27, 1883, generated a 30 meter tsunami in the Sunda Strait which killed about 36,000 people. It also caused an atmospheric pressure wave that was recorded on the tide gauges at remote locations including South Georgia Island, Panama, France, England, Alaska, Hawaii, and San Francisco. Due to the shadowing by continents and island groups, a direct tsunami could not have reched most of these locations. Atmospheric gravity waves occurred which may have excited water waves by transferring energy into the ocean. It was recorded with an amplitude of six inches at Sausalito, California. NOAA image.

Rock Type Photo Gallery
Types of Volcanic Eruptions
Mount Rainier Volcanic Hazards
East Africa Rift
Teaching Plate Tectonics with Drawings
Marcellus Shale

© 2005-2016 All Rights Reserved.
Images, code, and content on this website are property of and are protected by copyright law. does not grant permission for any use, republication, or redistribution.
Images, code and content owned by others are marked on the pages where they appear.