Images

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. Here is an example of rockfall material in the yard of a house in Ponce, Puerto Rico.

USGS scientists, like Dr. Alex Grant, were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. Here is an example of a lateral spread near a creek in Ponce, Puerto Rico.

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. The boardwalk in Ponce, Puerto Rico was damaged by the quake.

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. The boardwalk in Ponce, Puerto Rico was damaged by the quake.

Earthquakes detected between December 28, 2019 as of January 16, 2020. Subject to updates.

>300 M3+earthquakes recorded*
since Dec. 28, 2019 (within 40km) strong enough to be felt

10 M5+ earthquakes recorded*
since Dec. 28, 2019 (including M6.4) large enough to do damage

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. Here is an example of a lateral spread along a residential road in Ponce, Puerto Rico.

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. The boardwalk in Ponce, Puerto Rico was damaged by the quake.

Houses were damaged during the M6.4 earthquake that struck Puerto Rico on January 7, 2020. Houses were tagged by local officials for whether they were safe or not.

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. Here is an example of a landslide failure along a residential road in Ponce, Puerto Rico.

USGS scientists were deployed to assess land deformation and movement after a large M6.4 earthquake struck Puerto Rico on January 7, 2020. This landslide was discovered along a neighborhood road near Ponce, Puerto Rico.

USGS team with Wanda Vazquez-Garced, governor of Puerto Rico. From left to right: Lindsay Davis, Wanda Vazquez, Dianne Lopez-Trujillo, Jonathan Godt, Donyelle Davis, Alex Grant

USGS scientists Thomas L. Pratt and Alena L. Leads, along with Dr. Elizabeth Vanacore, associate research professor at University of Puerto Rico, analyze data in earthquake monitoring and recording equipment amid aftershocks across the island's southern coast.

Photo (L-R) Jose Cancel of Puerto Rico Seismic Network (PRSN), Alena Leeds of USGS and Javier Santiago of PRSN install a temporary seismometer at Sabana Yeguas in southwestern Puerto Rico on Jan. 10, 2020.

Northward view towards Camden Bay from west-central Arctic National Wildlife Refuge-1002 Area near the Katakturuk River. Patterns in foreground are permafrost polygons.

Northward view from southeastern corner of Arctic National Wildlife Refuge-1002 Area near Okerokorik River showing gently rolling topography typical of the southern coastal plain.

View to the northeast from near the eastern boundary of the Arctic National Wildlife Refuge-1002 Area west of the Aichilik River.

Geologists examine oil-saturated sand (unconsolidated), sandstone (dark orange-brown rocks), and concretions (light orange rocks) along the Jago River in the Arctic National Wildlife Refuge-1002 Area, about 18 miles southeast of Kaktovik.  

View to the southeast from near the Canning River Delta. Visible in foreground are permafrost polygons cut by caribou trails. 

Arctic National Wildlife Refuge

Northward view to coast of Canning River Delta with thin barrier island and ice pack beyond.

Fog Over Glacial Ridge National Wildlife Refuge

Northward view towards Kaktovik from southeastern Arctic National Wildlife Refuge-1002 Area. Location is along Sabbath Creek, a tributary of the Jago River.