www.usgs.gov Open in urlscan Pro
2600:9000:237d:c00:1b:8180:81c0:93a1  Public Scan

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MEET NEIC INTERNS!

NEW VIDEO EXPLORING INTERN EXPERIENCES

View now


BREADCRUMB

 1. Programs


LATEST EARTHQUAKES

PAST 24 HOURS, 7 DAYS, 1 MONTH

View recent earthquakes worldwide


SIGNIFICANT EARTHQUAKES ARCHIVE

LISTS OF ANNUAL IMPACTFUL EARTHQUAKES

View lists


SEARCH EARTHQUAKE CATALOG

ONLINE SEARCH BY TIME WINDOW, AREA, MAGNITUDE, AND MORE

Find an earthquake


HOW CLIMATE CHANGE TRIGGERED A LANDSLIDE TSUNAMI IN A GREENLAND FJORD, VIBRATING
EARTH FOR 9 DAYS

A VIDEO EXPLAINING THIS UNUSUAL EVENT THAT USGS RESEARCHED WITH OTHER
ORGANIZATIONS

View Video


MEET NEIC INTERNS!

NEW VIDEO EXPLORING INTERN EXPERIENCES

View now


BREADCRUMB

 1. Programs


LATEST EARTHQUAKES

PAST 24 HOURS, 7 DAYS, 1 MONTH

View recent earthquakes worldwide


SIGNIFICANT EARTHQUAKES ARCHIVE

LISTS OF ANNUAL IMPACTFUL EARTHQUAKES

View lists


SEARCH EARTHQUAKE CATALOG

ONLINE SEARCH BY TIME WINDOW, AREA, MAGNITUDE, AND MORE

Find an earthquake


HOW CLIMATE CHANGE TRIGGERED A LANDSLIDE TSUNAMI IN A GREENLAND FJORD, VIBRATING
EARTH FOR 9 DAYS

A VIDEO EXPLAINING THIS UNUSUAL EVENT THAT USGS RESEARCHED WITH OTHER
ORGANIZATIONS

View Video


MEET NEIC INTERNS!

NEW VIDEO EXPLORING INTERN EXPERIENCES

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 * 1
 * 2
 * 3
 * 4
 * 5


SIGNIFICANT EARTHQUAKES, PAST 30 DAYS

Significant Earthquakes Archive

What makes an earthquake "significant"?

5.0

48 km S of Hualien City, Taiwan
2024-11-06 17:19:36 (UTC)
Pager Alert Level: Gray (Null)

10.0 km

5.7

14 km NNW of Santa Ana, Peru
2024-11-05 19:39:41 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
79.4 km

4.8

5 km SW of Pāhala, Hawaii
2024-11-05 11:42:32 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
38.4 km

4.4

8 km SSE of Chalandrítsa, Greece
2024-11-05 00:37:15 (UTC)
Pager Alert Level: Gray (Null)

82.3 km

4.3

19 km ESE of Waikawa, New Zealand
2024-11-04 02:58:36 (UTC)
Pager Alert Level: Gray (Null)

35.0 km

3.4

3 km ENE of Fortuna, CA
2024-11-03 17:12:33 (UTC)
Pager Alert Level: Gray (Null)
MMI: III (Weak Shaking)
21.4 km

5.2

12 km SSW of Néa Poteídaia, Greece
2024-11-03 17:03:52 (UTC)
Pager Alert Level: Gray (Null)

9.0 km

4.3

73 km N of La Serena, Chile
2024-11-03 04:16:39 (UTC)
Pager Alert Level: Gray (Null)

46.1 km

3.7

3 km E of Steele, Missouri
2024-11-03 03:44:03 (UTC)
Pager Alert Level: Gray (Null)
MMI: V (Moderate Shaking)
10.5 km

3.1

3 km NNW of The Geysers, CA
2024-10-31 17:14:26 (UTC)
Pager Alert Level: Gray (Null)

4.0 km

4.3

44 km WSW of Nuwaybi‘a, Egypt
2024-10-31 04:35:10 (UTC)
Pager Alert Level: Gray (Null)

10.0 km

6.0

279 km W of Bandon, Oregon
2024-10-30 20:15:20 (UTC)
Pager Alert Level: Green

10.0 km

3.6

8 km SW of Lompoc, CA
2024-10-28 07:49:24 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
-0.1 km

3.2

10 km SW of Lompoc, CA
2024-10-28 03:55:50 (UTC)
Pager Alert Level: Gray (Null)

-0.1 km
SIGNIFICANT EARTHQUAKES, PAST 30 DAYS

Significant Earthquakes Archive

What makes an earthquake "significant"?

5.0

48 km S of Hualien City, Taiwan
2024-11-06 17:19:36 (UTC)
Pager Alert Level: Gray (Null)

10.0 km

5.7

14 km NNW of Santa Ana, Peru
2024-11-05 19:39:41 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
79.4 km

4.8

5 km SW of Pāhala, Hawaii
2024-11-05 11:42:32 (UTC)
Pager Alert Level: Green
MMI: IV (Light Shaking)
38.4 km

4.4

8 km SSE of Chalandrítsa, Greece
2024-11-05 00:37:15 (UTC)
Pager Alert Level: Gray (Null)

82.3 km

4.3

19 km ESE of Waikawa, New Zealand
2024-11-04 02:58:36 (UTC)
Pager Alert Level: Gray (Null)

35.0 km

3.4

3 km ENE of Fortuna, CA
2024-11-03 17:12:33 (UTC)
Pager Alert Level: Gray (Null)
MMI: III (Weak Shaking)
21.4 km

5.2

12 km SSW of Néa Poteídaia, Greece
2024-11-03 17:03:52 (UTC)
Pager Alert Level: Gray (Null)

9.0 km

4.3

73 km N of La Serena, Chile
2024-11-03 04:16:39 (UTC)
Pager Alert Level: Gray (Null)

46.1 km

3.7

3 km E of Steele, Missouri
2024-11-03 03:44:03 (UTC)
Pager Alert Level: Gray (Null)
MMI: V (Moderate Shaking)
10.5 km

3.1

3 km NNW of The Geysers, CA
2024-10-31 17:14:26 (UTC)
Pager Alert Level: Gray (Null)

4.0 km

4.3

44 km WSW of Nuwaybi‘a, Egypt
2024-10-31 04:35:10 (UTC)
Pager Alert Level: Gray (Null)

10.0 km

6.0

279 km W of Bandon, Oregon
2024-10-30 20:15:20 (UTC)
Pager Alert Level: Green

10.0 km

3.6

8 km SW of Lompoc, CA
2024-10-28 07:49:24 (UTC)
Pager Alert Level: Gray (Null)
MMI: IV (Light Shaking)
-0.1 km

3.2

10 km SW of Lompoc, CA
2024-10-28 03:55:50 (UTC)
Pager Alert Level: Gray (Null)

-0.1 km

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EARTHQUAKE HAZARDS PROGRAM

The USGS monitors and reports on earthquakes, assesses earthquake impacts and
hazards, and conducts targeted research on the causes and effects of
earthquakes. We undertake these activities as part of the larger National
Earthquake Hazards Reduction Program (NEHRP), a four-agency partnership
established by Congress.

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LATEST EARTHQUAKES



Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced
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Did You Feel It?


NEWS

(Some) Assembly Required: How to sign your organization up for the Great
ShakeOut
October 15, 2024

(SOME) ASSEMBLY REQUIRED: HOW TO SIGN YOUR ORGANIZATION UP FOR THE GREAT
SHAKEOUT

USGS seeking Loma Prieta felt reports from 35-year-old earthquake
October 8, 2024

USGS SEEKING LOMA PRIETA FELT REPORTS FROM 35-YEAR-OLD EARTHQUAKE

Loma Prieta Earthquake 35th Anniversary Compilation
September 19, 2024

LOMA PRIETA EARTHQUAKE 35TH ANNIVERSARY COMPILATION

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PUBLICATIONS

October 25, 2024

AFTERSLIP AND CREEP IN THE RATE-DEPENDENT FRAMEWORK: JOINT INVERSION OF BOREHOLE
STRAIN AND GNSS DISPLACEMENTS FOR THE MW 7.1 RIDGECREST EARTHQUAKE

The elusive transition toward afterslip following an earthquake is challenging
to capture with typical data resolution limits. A dense geodetic network
recorded the Mw 7.1 Ridgecrest earthquake, including 16 Global Navigation
Satellite System (GNSS) stations and 3 borehole strainmeters (BSM). The
sub-nanostrain precision and sub-second sampling rate of BSMs bridges a gap
between conventional seism
Authors
Catherine Hannagan, Richard Bennett, Andrew Barbour, Amanda N. Hughes
By
Natural Hazards Mission Area, Earthquake Hazards Program, Earthquake Science
Center
October 3, 2024

EVALUATION OF AN OPEN EARTHQUAKE EARLY WARNING SYSTEM IN MEXICO, AND LABORATORY
TESTS OF THEIR SENSORS

Microelectromechanical system (MEMS) accelerometers are useful for seismological
and engineering applications because of their ability to record unsaturated
large seismic signals. Recent advances in MEMS technologies enable the design of
instruments with improved capabilities that also allow the recording of small
signals. As a result, MEMS can be useful across a broad dynamic range and for
both m
Authors
Vaclav Kuna, Adam T. Ringler, Diego Melgar
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards
Science Center
October 1, 2024

PRELIMINARY OBSERVATIONS OF THE APRIL 5TH, 2024, MW4.8 NEW JERSEY EARTHQUAKE

On 5 April 2024, 10:23 a.m. local time, a moment magnitude 4.8 earthquake struck
Tewksbury Township, New Jersey, about 65 km west of New York City. Millions of
people from Virginia to Maine and beyond felt the ground shaking, resulting in
the largest number (>180,000) of U.S. Geological Survey (USGS) “Did You Feel
It?” reports of any earthquake. A team deployed by the Geotechnical Extreme
Events R
Authors
Oliver S. Boyd, William D. Barnhart, James Bourke, Martin C. Chapman, Paul S.
Earle, Guo-chin Dino Huang, Jessica Ann Thompson Jobe, Won-Young Kim, Frederick
Link, Mairi Maclean Litherland, Andrew Lloyd, Maureen Long, Sara McBride, Andrew
J. Michael, Walter D. Mooney, Gregory Moutain, Sissy Nikolaou, Alexandros
Savvaidas, Felix Waldhauser, Cecily Wolfe, Clara Yoon
By
Natural Hazards Mission Area, Earthquake Hazards Program, Geologic Hazards
Science Center
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SCIENCE

link

October 8, 2024

M 6.9 OCTOBER 17, 1989 LOMA PRIETA EARTHQUAKE

The 1989 Loma Prieta earthquake ended decades of tranquility in the San
Francisco Bay region. It was a wakeup call to prepare for the potentially even
more devastating shocks that are inevitable in the future. Since 1989, the work
of the U.S. Geological Survey and other organizations has improved understanding
of the seismic threat in the Bay region, promoted awareness of earthquake
hazards, and...
By
Natural Hazards Mission Area, Earthquake Hazards Program
link
October 8, 2024

M 6.9 OCTOBER 17, 1989 LOMA PRIETA EARTHQUAKE

The 1989 Loma Prieta earthquake ended decades of tranquility in the San
Francisco Bay region. It was a wakeup call to prepare for the potentially even
more devastating shocks that are inevitable in the future. Since 1989, the work
of the U.S. Geological Survey and other organizations has improved understanding
of the seismic threat in the Bay region, promoted awareness of earthquake
hazards, and...
Learn More
link

September 5, 2024

EARTHQUAKE RESPONSE AND INVESTIGATIONS

Post-earthquake scientific and engineering investigations are undertaken by the
USGS and its partners to capture critical information to understand the causes
and impacts of the event, lessons from which can substantially improve the
Nation’s resilience after future earthquakes.
By
Natural Hazards Mission Area, Earthquake Hazards Program
link
September 5, 2024

EARTHQUAKE RESPONSE AND INVESTIGATIONS

Post-earthquake scientific and engineering investigations are undertaken by the
USGS and its partners to capture critical information to understand the causes
and impacts of the event, lessons from which can substantially improve the
Nation’s resilience after future earthquakes.
Learn More
link

August 22, 2024

ALASKA EARTHQUAKE AND TSUNAMI HAZARDS

Alaska has more large earthquakes than the rest of the United States combined.
More than three-quarters of the state’s population live in an area that can
experience a magnitude 7 earthquake. Our research provides objective science
that helps stakeholders prepare for and mitigate the effects of future
earthquakes and tsunamis, which bolsters the economic health and well-being of
Alaska and the...
By
Earthquake Hazards Program, Alaska Science Center, Subduction Zone Science
link
August 22, 2024

ALASKA EARTHQUAKE AND TSUNAMI HAZARDS

Alaska has more large earthquakes than the rest of the United States combined.
More than three-quarters of the state’s population live in an area that can
experience a magnitude 7 earthquake. Our research provides objective science
that helps stakeholders prepare for and mitigate the effects of future
earthquakes and tsunamis, which bolsters the economic health and well-being of
Alaska and the...
Learn More
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Seismographs at the Albuquerque Seismological Laboratory

Seismographs at the Albuquerque Seismological Laboratory

Aerial View of the Albuquerque Seismological Laboratory

Aerial View of the Albuquerque Seismological Laboratory

Global Seismographic Network (GSN) Stations

Global Seismographic Network (GSN) Stations

Cover of fictional Great ShakeOut instruction manual.

Cover of fictional Great ShakeOut instruction manual.

Page 6 of fictional Great ShakeOut instruction manual

Page 6 of fictional Great ShakeOut instruction manual

Page 8 of fictional Great ShakeOut instruction manual

Page 8 of fictional Great ShakeOut instruction manual

Page 3 of fictional Great ShakeOut instruction manual

Page 3 of fictional Great ShakeOut instruction manual

Page 4 of fictional Great ShakeOut instruction manual

Page 4 of fictional Great ShakeOut instruction manual

Page 5 of fictional Great ShakeOut instruction manual

Page 5 of fictional Great ShakeOut instruction manual
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