Images

Stormy weather moved through the islands over the past day, producing snow at the higher elevations of Mauna Kea and Mauna Loa. This sequence shows the webcam images at the summit of Mauna Loa, and the variable weather throughout the day.

On December 30, 2015, an HVO geologist wore protective gear during collection of a fresh lava sample for chemical analysis from a Pāhoehoe breakout along scattered Pu‘u ‘Ō‘ō lava flows. Inset image caption: Metadata is written on a bag that holds a sample taken from Pāhoehoe that was collected on August 18, 2006.

The water pond at Kīlauea's summit continues to gradually deepen. The pond surface remains variable in color, with a brownish hue in the northern portion, evident through the gaps in steam. USGS photo by D. Swanson.

The sampling mechanism (on blue tarp) is prepared and the Unoccupied Aircraft System (UAS) is inspected just before take off to collect water from the Halema‘uma‘u crater lake. Brightly colored flagging tape tied to a cable attached to the UAS indicated depth as the sampling tool was lowered into the water. 

Scanning Electron Microscope (SEM) image of the silicified microbial mats that form Castle Geyser. USGS image by Dakota Churchill.

The U.S. Geological Survey has released a report on the potential duration of aftershocks of the 2020 Southwest Puerto Rico earthquake sequence (series) to guide public policy decisions, other actions, and help people stay safe and care for themselves and each other.

USGS researchers Chris Moore and Mitchell Lemon took a trip on the R/V Weatherbird in January of 2020 with the University of South Florida College of Marine Science as part of a study on carbon dioxide in the Gulf of Mexico. Carbon Dioxide, or CO2, is a greenhouse gas that can be absorbed by the ocean.

El Servicio Geológico de los EE. UU. ha publicado un informe sobre la duración potencial de las réplicas de la secuencia (serie) del terremoto del Suroeste de Puerto Rico en el 2020 que puede ser usado como guía en las decisiones de política pública, otras acciones y ayudar a las personas a mantenerse seguras y cuidarse a sí mismas y a los demás.

Dianne López-Trujillo with Lynne Carrier, FEMA translator.

The USGS Recognizes Dianne Lopez-Trujillo During Hispanic Heritage Month

What happens when a 6.4 magnitude earthquake strikes Puerto Rico and the public needs critical information? How does a mostly English-speaking science agency reach a mostly Spanish-speaking public?

The 1880-1881 eruption of Mauna Loa produced lava flows that came within about 2 kilometers of the town of Hilo. This painting by Charles Furneaux, "Night View 1880-1881, Eruption from Hilo Bay," illustrates the flows as they would have been in November 1880.

Congressional event following the 6.4 earthquake in Puerto Rico held on Jan. 20, 2020. Dr. Jonathan Godt (USGS) and Dr. Elizabeth A. Vanacore (Red Sismica Puerto Rico) answered questions to congressmen: Yauco's major, Bill Posey, Jenniffer González Colón, Stephanie Murphy, Donna Shalala

Overview of the Congressional event following the 6.4 earthquake in Puerto Rico. Bottom of picture: congressmen. Center: Dianne Lopez, Lindsay Davis, Donyelle Davis

One of the houses destroyed during the 6.4 earthquake in Puerto Rico. 

After a sample was collected, HVO team members transferred water from the sampling device to plastic bottles. Team members took notes, measured water pH and evaluated water temperature data for each sample collected.   

Part of the USGS Earthquake Response Team visiting areas affected by the 6.4 earthquake. Place: Guánica Boardwalk. From left to right: Donyelle Davis, Dianne López, Jonathan Godt, Alex Grant

A close-up view of the Kilauea pond shows the color variations across the surface, and sharp boundaries among zones of different color.

Terremotos detectados entre diciembre 28, 2019 hasta enero 16, 2020. Sujeto a actualizaciones.

>300 M3+ terremotos* registrados

desde dic 28, 2019 (dentro de 40km) suficientemente fuerte como para ser sentido

10 M5+ terremotos* registrados

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 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 rockfall damage to a house 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. 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.