Images

An example of Bayesian updating of productivity parameter (a-value) for the 2010 Mw 8.8 Maule, Chile, earthquake. Immediately following the earthquake, the SZ-GENERIC region-specific a-value distribution can be used.

Screenshot of the Overview webpage for an earthquake in California. The “Aftershock Forecast” card is at lower center.

USGS installed an array of seismometers in a field in Gaziantep, Turkiye in order to record ambient noise and earthquakes, including the aftershocks of the devastating earthquakes of 2023. Robert Sickler of the USGS in the foreground and an AFAD employee in the background.

DÓNDE SE PRODUCEN LOS TERREMOTOS

Modelo Nacional de Riesgo Sísmico, 2023

TERREMOTOS EN LA CIUDAD DE NUEVA YORK

CÁC TRẬN ĐỘNG ĐẤT XẢY RA Ở ĐÂU

Theo Mô Hình Cảnh Báo Nguy Hiểm Động Đất Toàn Quốc, 2023

ĐỘNG ĐẤT TẠI THÀNH PHỐ NEW YORK

ГДЕ БЫВАЮТ ЗЕМЛЕТРЯСЕНИЯ

Общенациональная модель сейсмической опасности 2023 г.

ЗЕМЛЕТРЯСЕНИЯ В НЬЮ-ЙОРКЕ

The “Did you feel it?” ZIP Map for the 1994 Northrdige earthquake. Found at this link: https://earthquake.usgs.gov/earthquakes/eventpage/ci3144585/dyfi/zip

Things to know about ShakeAlert graphic that shows the limitations of earthquake early warning.

Austin Elliott with the USGS Earthquake Science Center prepares to carry Redwood stump samples out to the road.

Wedge sample removed from a redwood stump at the base of the San Andreas fault scarp (slope up in the background).

Sample removed from a redwood stump, displaying annual rings. The sample will help researchers determine past earthquakes in the area. 

Nick Cunetta stands between two sampled redwood stumps on a pressure ridge between two strands of the San Andreas fault

Belle Philibosian with the USGS Earthquake Science Center examines a redwood stump along the north coast section of the San Andreas Fault near Gualala, California in late August 2022.  

Sawyers cutting into a leaning redwood snag. The snag is located directly on the San Andreas fault scarp (slope down to the left) and the leaning may have occurred during an earthquake.

Labeled stump samples sit on the floor awaiting analysis in the laboratory at Cal Poly Humboldt.

A map showing the epicenter of the M 3.5 quake that occurred 3.7 miles (6 km) east of Elgin, South Carolina on June 29, 2022. The quake is part of an ongoing sequence in central South Carolina. The sequence started on December 27, 2021, with an M3.3 earthquake near Lugoff, South Carolina.

In June 2022, Mendenhall Fellow Sabine Loos (Research Civil Engineer in the Geological Hazards Science Center) presented a seminar to USGS's Earthquake Science Center at Moffett Field, CA, where Max Schneider (Research Statistician) works as a Mendenhall Fellow.

Micah Kieffer, John Burns (volunteer), and Ted Castro-Santos performing final preparations on the 23 foot Commander for service in the initial year of EESC's Delaware River shad study.

Joanne Chan conducting a seismic survey in San Carlos, California, looking for traces of the Serra Fault. 

An aerial view of landslide damage after Hurricane Maria in Utuado municipality, Puerto Rico.

USGS scientists Nicholas van der Elst and Alan Yong installing a seismometer near the 2019 Ridgecrest earthquakes in southern California in order to record its aftershocks.