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Earthquake Resources Archive

2018 Jul 5th

IRIS Internship Program 20th anniversary!

The IRIS Internship Program celebrates 20 years of success!
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2018 May 21st

Take a Peek at a Day in the Life of an IRIS Seismologist

IRIS Seismologist Kasey Aderhold shares the excitement of her work to discover more about earthquakes, including field work in Alaska.
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2018 May 5th

IRIS Joins NASA to Engage the Public about the Mars InSight Mission

IRIS Seismology Education & Outreach Specialist Tammy Bravo (third from right) poses with the NASA Mars InSight Team prior to the launch.
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2018 Mar 1st

Navigating IRIS Educational Products

The IRIS website has 300+ resources for teaching and learning about earthquakes, geology, geophysics & earth systems. This tutorial can help you find, filter, and share these resources!

2018 Feb 27th

Register for the 2018 IRIS Workshop!

2018 IRIS Workshop: Foundations, Frontiers, and Future Facilities for Seismology
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2018 Feb 15th

IRIS Animations, Webinars and Videos

IRIS has more than 200 animations, webinars and videos to provide information and background on Earth science fundamentals from plate tectonics to seismic wave propagation.
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2018 Jan 22nd

New Animation! A Brief History of Plate Tectonics

The theory of plate tectonics represents a fairly young science. This animation gives an overview of the most-recognized proponents (and opponents) of Plate Tectonics Theory from the 1600's into the 1960's.

2018 Jan 16th

New Animation! Plate Boundaries and Tectonic Plates

The cool, rigid, outer layer of the earth, the lithosphere, is broken into massive plates along discrete boundaries. What are these plates, and what do the boundaries represent?

2018 Jan 16th

New Animation! What Drives Plate Tectonics?

Lithospheric plates are part of a planetary scale thermal convection system. The energy source for plate tectonics is Earth’s internal heat while the forces moving the plates are the “ridge push” and “slab pull” gravity forces.

2017 Oct 4th

EarthScope’s Transportable Array Spans Alaska, the Last Frontier

After covering the lower 48 United States from coast to coast with a grid of nearly 1700 sites, the final seismic station of the EarthScope Transportable Array has been installed in Alaska!
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2017 Sep 27th

IRIS Special Event Pages

IRIS Special Event web pages provide links to data products and images of data and materials available from IRIS programs and preliminary research results from the seismology community.
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2017 Sep 27th

Free Online Course: “Geology and Geophysics in the Petroleum Industry”

This course instructs students on the basics of geology and geophysics in the petroleum industry. Webinars, PPTS, exercises and course materials are included!

2017 Aug 29th

Tsunamis Generados por Terremotos en la Zona de Subducción

Mega–terremotos de la Zona de subducción, los terremotos más potentes, pueden producir tsunamis a través de una variedad de estructuras que no son detectadas por los modelos simples. En esta animación exploramos diferentes mecanismos productores de tsunamis examinando tres terremotos famosos: Japón 2011, Chile 2010, y Alaska 2014.

2017 Aug 21st

Explicación de los Mecanismos Focales en los Terremotos

Esto describe la dirección de desplazamiento en un terremoto y de orientación de la falla sobre la cual ocurre. Cuando se produce un terremoto, los sismólogos crean gráficos de mecanismos focales, informalmente conocidos como pelotas de playa para mostrar los movimientos de falla que producen un terremoto.

2017 Aug 15th

NEW ANIMATION! Volcanic evolution of the Pacific Northwest: A 55 million year history

This animation integrates the unique and rich eruptive volcanic history of the Pacific Northwest in relation to the complicated tectonic regime revealed by seismology and geodetics in recent decades. We weave together geologic maps, time scales, and cross sections to help simplify and clarify elusive hidden structures and processes below Earth’s surface.

2017 Aug 14th

My Experience as an IRIS Alaska Transportable Array Intern

Follow IRIS intern Amin Abbasi through his adventures installing Transportable Array seismometers in Alaska!
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2017 Aug 3rd

Intensidad de Terremoto: ¿Que controla la sacudida que sientes?

La intensidad sísmica, que es el temblor que experimentas, puede ser leve o severo, corto o largo, brusco o de bandeo. A diferencia de la magnitud de un terremoto, que es una medida de la energía liberada y es la misma para todos los lugares, la intensidad sísmica que percibes depende de dónde te encuentras.

2017 Aug 3rd

Magnitudes: Explicación de la Magnitud de Momento

Los científicos han desarrollado sismómetros mucho más sensibles, que con computadoras más rápidas, les han permitido registrar e interpretar un espectro más amplio de señales sísmicas, estas mejoras les permitieron determinar de una mejor manera la energía liberada por grandes terremotos.

2017 Jun 15th

New Animation! “Japan: Overview of Earthquakes & Tectonics”

Japan has more measurable earthquakes than any other country and has over 100 active volcanoes. The tectonics are complicated, but in this animation we look at the basic mechanics of the region as we focus on two famous earthquakes: the 1995 Kobe earthquake and the 2011 Tohoku-Oki earthquake. For additional resources please visit IRIS In Class.

2017 Jun 2nd

WEBINARS: Geology and Geophysics in the Petroleum Industry

Please join Dr. Fred Schroeder, Retired from Exxon-Mobil and Noble Energy, for lessons from his course on Geology and Geophysics in the Petroleum Industry.
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2017 May 25th

Earth Science FAQ’s

Do you have questions about earthquakes or seismology? Are you interested in learning more about Alaska or Cascadia? Visit our new and improved FAQ page!

2017 Mar 16th

Animations

Modern seismometers include 3 elements to determine the simultaneous movement in 3 directions: up-down, north-south,and east-west. Each direction gives information about the earthquake. This animation shows both the movement of the three basic waves (P, S, and surface) and the effect of the waves on a building.