Latest news on California earthquake: More than 50,000 power outages restored after deadly, magnitude 6.4 earthquake in Northern California Gavin Newsom proclaimed a state of emergency to support emergency response. The temblor, which is the strongest earthquake the area has seen in years, also damaged infrastructure and cut off power to tens of thousands of homes and businesses around Humboldt County, about 250 miles north of San Francisco.Ī local emergency was declared by Humboldt County Sheriff William Honsal Tuesday night due to widespread damages in the county. Following the county's declaration, California Gov. References - Access the data releases and journal articles used for the images and interactive maps in the geonarrative.Watch Video: Magnitude 6.4 earthquake hits Northern California, many without powerĪt least two people died and 12 were injured after a magnitude 6.4 earthquake rocked Northern California early Tuesday, local authorities said.More Information - Explore links to additional resources with more details and background information.Photo Gallery - View photos taken by the geologists and seismologists that traveled to the epicentral areas and surrounding impacted area just days after the earthquakes.Find out about the research scientists have completed so far. Read about the efforts to map all the surface features created by the earthquakes, and the various instruments that were deployed to record aftershocks up close. Field Response - Interact with various maps and images to explore the locations of surface features, instruments, and relocated aftershocks.Overview - Learn about the region where the Ridgecrest earthquake sequence occurred and what's happened there in the past.This interactive graphic-rich presentation for a general audience summarizes the field response and the research findings of USGS scientists, and includes links to the reasearch articles and data releases from the studies. View the 2019 Ridgecrest, California Earthquake Sequence Geonarrative. This was an M7.1 on a fault orthogonal (rotated 90 degrees) to the strike of the M6.4 and was also a shallow strike-slip event. About 34 hours later (at 8:19pm local time) and 11km (6.8 mi) NW of the M6.4 event, another larger earthquake occurred. On July 4, 2019 at 10:34am local time, more than 47,000 people in southern California and as far away as northern California and Phoenix, Arizona felt shaking from an M6.4 earthquake centered 18.2 km (11.3 mi) WSW of Ridgecrest, California. (modified from Shelly, 2020, Public domain.)
White lines indicate mapped surface rupture (both fully and not fully verified) (Kendrick et al., 2019). The seismic stations used in this study are shown as small white triangles (additional stations beyond main map view shown in inset). Stars indicate Mw 6.4 and 7.1 epicenter locations from Shelly, 2020. Depth is referenced to a surface elevation of 0.7 km above sea level.
Shaded relief map views of the 2019 Ridgecrest sequence.
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