Tsunami and Earthquake Research Active
Here you will find general information on the science behind tsunami generation, computer animations of tsunamis, and summaries of past field studies.
Learn More
Background information and links to our other tsunami research projects.
The scope of tsunami research within the USGS, however, is broader than the topics covered here. USGS researchers have also provided critical research toward understanding how sediments are transported during tsunami runup and deciphering the geologic record of prehistoric tsunamis. The USGS collaborates closely with the NOAA Center for Tsunami Research.
As part of the National Tsunami Hazard Mitigation Program, the USGS has also upgraded the seismograph network and communication functions of the U.S. Tsunami Warning Center.
Soon after the devastating tsunami in the Indian Ocean on December 26, 2004 many people have asked, “Could such a tsunami happen in the United States?” As a starting point, read “Could It Happen Here?”
Starting points:
- Could It Happen Here?
- Life of a Tsunami
- Local Tsunamis in the Pacific Northwest
-
- Not all tsunamis are generated by earthquakes
- Tsunamis can be caused by volcanoes, landslides, and even atmospheric disturbances
- Data from tide gauges can help unravel the complex physics of these sources
Tsunami events:
March 11, 2011, Japan
- Preliminary simulations of the tsunami
- Notes from the field: International Tsunami Team visits Japan before (2010) and after (May 2011);
plus eyewitness accounts from California on March 11
September 29, 2009, Samoa
- Preliminary analysis of the tsunami
- USGS scientists in Samoa and American Samoa studying impacts of tsunami
April 1, 2007, Solomon Islands
March 28, 2005, Sumatra
- Analysis and comparison of the December 2004 and March 2005 tsunamis
- Field study of the effects of the December 2004 and March 2005 earthquakes and tsunamis - April 2005
December 26, 2004, Sumatra-Andaman Islands
- Tsunami generation from the 2004 M=9.1 Sumatra-Andaman earthquake
- Initial findings on tsunami sand deposits, damage, and inundation in Sumatra - January 2005
- Initial findings on tsunami sand deposits, damage, and inundation in Sri Lanka - January 2005
June 23, 2001, Peru
- Preliminary analysis of the tsunami generated by the earthquake
- Preliminary analysis of sedimentary deposits from the tsunami
July 17, 1998, Papua New Guinea
Below are current tsunami studies and tsunami education materials.
PubTalk 1/2017 — Unusual sources of tsunamis
A presentation on "Unusual Sources of Tsunamis From Krakatoa to Monterey Bay" by Eric Geist, USGS Research Geophysicist
- Not all tsunamis are generated by earthquakes.
- Tsunamis can be caused by volcanoes, landslides, and even atmospheric disturbances
- Data from tide gauges can help unravel the complex physics of these sources
Below are USGS publications on a wide variety of topics related to tsunamis.
Far field tsunami simulations of the 1755 Lisbon earthquake: Implications for tsunami hazard to the U.S. East Coast and the Caribbean
The great Lisbon earthquake of November 1st, 1755 with an estimated moment magnitude of 8.5-9.0 was the most destructive earthquake in European history. The associated tsunami run-up was reported to have reached 5-15??m along the Portuguese and Moroccan coasts and the run-up was significant at the Azores and Madeira Island. Run-up reports from a trans-oceanic tsunami were documented in the Caribbe
Chapter 3 - Phenomenology of tsunamis: Statistical properties from generation to runup
Probabilistic tsunami hazard assessment at Seaside, Oregon, for near-and far-field seismic sources
Tsunami: wave of change
Triggering of tsunamigenic aftershocks from large strike‐slip earthquakes: Analysis of the November 2000 New Ireland earthquake sequence
[1] The November 2000 New Ireland earthquake sequence started with a Mw = 8.0 left‐lateral main shock on 16 November and was followed by a series of aftershocks with primarily thrust mechanisms. The earthquake sequence was associated with a locally damaging tsunami on the islands of New Ireland and nearby New Britain, Bougainville, and Buka. Results from numerical tsunami‐propagation models of the
Geophysics: The size and duration of the Sumatra-Andaman earthquake from far-field static offsets
Rapid tsunami models and earthquake source parameters: Far-field and local applications
Large-scale deformation related to the collision of the Aleutian Arc with Kamchatka
Application of continuum models to deformation of the Aleutian Island Arc
Continuum models were constructed to describe large‐scale deformation of the Aleutian Island Arc over the past 5 m.y. These models consider the island arc as a continuum in the horizontal plane with the velocity boundary condition at the Pacific edge stated as a fraction of Pacific plate convergence transferred to the arc. First, a simple model of uniformly distributed strain is formulated to illu
Below are news stories about tsunamis.
Below are FAQs associated with tsunamis.
- Overview
Here you will find general information on the science behind tsunami generation, computer animations of tsunamis, and summaries of past field studies.
Learn MoreBackground information and links to our other tsunami research projects.
The scope of tsunami research within the USGS, however, is broader than the topics covered here. USGS researchers have also provided critical research toward understanding how sediments are transported during tsunami runup and deciphering the geologic record of prehistoric tsunamis. The USGS collaborates closely with the NOAA Center for Tsunami Research.
As part of the National Tsunami Hazard Mitigation Program, the USGS has also upgraded the seismograph network and communication functions of the U.S. Tsunami Warning Center.
Soon after the devastating tsunami in the Indian Ocean on December 26, 2004 many people have asked, “Could such a tsunami happen in the United States?” As a starting point, read “Could It Happen Here?”
Starting points:
- Could It Happen Here?
- Life of a Tsunami
- Local Tsunamis in the Pacific Northwest
-
- Not all tsunamis are generated by earthquakes
- Tsunamis can be caused by volcanoes, landslides, and even atmospheric disturbances
- Data from tide gauges can help unravel the complex physics of these sources
Tsunami events:
March 11, 2011, Japan
- Preliminary simulations of the tsunami
- Notes from the field: International Tsunami Team visits Japan before (2010) and after (May 2011);
plus eyewitness accounts from California on March 11
September 29, 2009, Samoa
- Preliminary analysis of the tsunami
- USGS scientists in Samoa and American Samoa studying impacts of tsunami
April 1, 2007, Solomon Islands
March 28, 2005, Sumatra
- Analysis and comparison of the December 2004 and March 2005 tsunamis
- Field study of the effects of the December 2004 and March 2005 earthquakes and tsunamis - April 2005
December 26, 2004, Sumatra-Andaman Islands
- Tsunami generation from the 2004 M=9.1 Sumatra-Andaman earthquake
- Initial findings on tsunami sand deposits, damage, and inundation in Sumatra - January 2005
- Initial findings on tsunami sand deposits, damage, and inundation in Sri Lanka - January 2005
June 23, 2001, Peru
- Preliminary analysis of the tsunami generated by the earthquake
- Preliminary analysis of sedimentary deposits from the tsunami
July 17, 1998, Papua New Guinea
- Science
Below are current tsunami studies and tsunami education materials.
- Multimedia
PubTalk 1/2017 — Unusual sources of tsunamis
A presentation on "Unusual Sources of Tsunamis From Krakatoa to Monterey Bay" by Eric Geist, USGS Research Geophysicist
- Not all tsunamis are generated by earthquakes.
- Tsunamis can be caused by volcanoes, landslides, and even atmospheric disturbances
- Data from tide gauges can help unravel the complex physics of these sources - Publications
Below are USGS publications on a wide variety of topics related to tsunamis.
Filter Total Items: 45Far field tsunami simulations of the 1755 Lisbon earthquake: Implications for tsunami hazard to the U.S. East Coast and the Caribbean
The great Lisbon earthquake of November 1st, 1755 with an estimated moment magnitude of 8.5-9.0 was the most destructive earthquake in European history. The associated tsunami run-up was reported to have reached 5-15??m along the Portuguese and Moroccan coasts and the run-up was significant at the Azores and Madeira Island. Run-up reports from a trans-oceanic tsunami were documented in the Caribbe
AuthorsR. Barkan, Uri S. ten Brink, J. LinChapter 3 - Phenomenology of tsunamis: Statistical properties from generation to runup
Observations related to tsunami generation, propagation, and runup are reviewed and described in a phenomenological framework. In the three coastal regimes considered (near-field broadside, near-field oblique, and far field), the observed maximum wave amplitude is associated with different parts of the tsunami wavefield. The maximum amplitude in the near-field broadside regime is most often associAuthorsEric L. GeistProbabilistic tsunami hazard assessment at Seaside, Oregon, for near-and far-field seismic sources
The first probabilistic tsunami flooding maps have been developed. The methodology, called probabilistic tsunami hazard assessment (PTHA), integrates tsunami inundation modeling with methods of probabilistic seismic hazard assessment (PSHA). Application of the methodology to Seaside, Oregon, has yielded estimates of the spatial distribution of 100- and 500-year maximum tsunami amplitudes, i.e., amAuthorsF.I. Gonzalez, E.L. Geist, B. Jaffe, U. Kanoglu, H. Mofjeld, C.E. Synolakis, V.V. Titov, D. Areas, D. Bellomo, D. Carlton, T. Horning, J. Johnson, J. Newman, T. Parsons, R. Peters, C. Peterson, G. Priest, A. Venturato, J. Weber, F. Wong, A. YalcinerTsunami: wave of change
No abstract available.AuthorsEric L. Geist, Vasily V. Titov, Costas E. SynolakisTriggering of tsunamigenic aftershocks from large strike‐slip earthquakes: Analysis of the November 2000 New Ireland earthquake sequence
[1] The November 2000 New Ireland earthquake sequence started with a Mw = 8.0 left‐lateral main shock on 16 November and was followed by a series of aftershocks with primarily thrust mechanisms. The earthquake sequence was associated with a locally damaging tsunami on the islands of New Ireland and nearby New Britain, Bougainville, and Buka. Results from numerical tsunami‐propagation models of the
AuthorsEric L. Geist, Tom ParsonsGeophysics: The size and duration of the Sumatra-Andaman earthquake from far-field static offsets
The 26 December 2004 Sumatra earthquake produced static offsets at continuously operating GPS stations at distances of up to 4500 kilometers from the epicenter. We used these displacements to model the earthquake and include consideration of the Earth's shape and depth-varying rigidity. The results imply that the average slip was >5 meters along the full length of the rupture, including the ???650AuthorsP. Banerjee, F. F. Pollitz, R. BurgmannRapid tsunami models and earthquake source parameters: Far-field and local applications
Rapid tsunami models have recently been developed to forecast far-field tsunami amplitudes from initial earthquake information (magnitude and hypocenter). Earthquake source parameters that directly affect tsunami generation as used in rapid tsunami models are examined, with particular attention to local versus far-field application of those models. First, validity of the assumption that the focalAuthorsE.L. GeistLarge-scale deformation related to the collision of the Aleutian Arc with Kamchatka
The far western Aleutian Island Arc is actively colliding with Kamchatka. Westward motion of the Aleutian Arc is brought about by the tangential relative motion of the Pacific plate transferred to major, right-lateral shear zones north and south of the arc. Early geologic mapping of Cape Kamchatka (a promontory of Kamchatka along strike with the Aleutian Arc) revealed many similarities to the geolAuthorsEric L. Geist, David W. SchollApplication of continuum models to deformation of the Aleutian Island Arc
Continuum models were constructed to describe large‐scale deformation of the Aleutian Island Arc over the past 5 m.y. These models consider the island arc as a continuum in the horizontal plane with the velocity boundary condition at the Pacific edge stated as a fraction of Pacific plate convergence transferred to the arc. First, a simple model of uniformly distributed strain is formulated to illu
AuthorsEric L. Geist, David W. Scholl - News
Below are news stories about tsunamis.
- FAQ
Below are FAQs associated with tsunamis.