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Photo: Mario Tama/Getty Images

A magnitude 7.1 earthquake shook Southern California around 8:20 pm on Friday night — just one day after a 6.4 magnitude quake struck the Ridgecrest area on July 4, AP reports.

Why it matters: Following a quiet stretch in California's seismic history, these are the largest reported earthquakes to affect the state in nearly 20 years. Scientists say the fault causing the quakes seems to be growing, per the LA Times.

The big picture: Lucy Jones, a Caltech seismologist, said Friday's temblor was 10 times larger than Thursday morning's, and that "there's no reason to think we can't have more large earthquakes," the LA Times reports. In a tweet, Jones said another magnitude 5 quake is likely, and a magnitude 6 quake is possible. Aftershocks could continue for months, if not years, per the Weather Channel.

What we know:

  • There are no reported deaths, but some injuries. Several buildings and homes were damaged, along with fires and ravaged roads, according to the Washington Post.
  • "The quake was felt as far north as Sacramento and Reno, Nevada, as far south as northern Mexico and as far east as Phoenix and Las Vegas. The temblor was felt throughout the Los Angeles, San Diego and San Francisco Bay areas," the Weather Channel reports.
  • According to the U.S. Geological Service, more than 600 quakes of at least a magnitude of 2.5 have been identified since July 4 in the Mojave Desert. More than 20 were magnitude 4.5 or greater, per the Weather Channel.
  • A U.S. Navy weapons testing facility outside of Ridgecrest was harmed, rendering it incapable of completing missions, says the LA Times.
  • California Gov. Gavin Newsom mobilized the state's office of emergency services and requested an emergency declaration from President Trump to receive federal aid.

Go deeper: Biggest earthquake in 20 years hits Southern California

Go deeper

56 mins ago - World

Biden freezes U.S. arms deals with Saudi Arabia and UAE

Trump struck several large arms deals with Mohammed bin Salman (L) and Saudi Arabia. Photo: Kevin Dietsch-Pool/Getty Images

The Biden administration has put on hold two big arms deals with Saudi Arabia and the United Arab Emirates which were approved in the final weeks of the Trump administration, a State Department official tells Axios.

Why it matters: The sales of F-35 jets and attack drones to the UAE and a large supply of munitions to Saudi Arabia will be paused pending a review. That signals a major policy shift from the Trump era, and may herald sharp tensions with both Gulf countries.

Dan Primack, author of Pro Rata
2 hours ago - Podcasts

Robert Downey Jr. launches VC funds to help save the planet

Robert Downey Jr. on Wednesday announced the launch of two venture capital funds focused on startups in the sustainability sector, the latest evolution of a project he launched two years ago called Footprint Collective.

Between the lines: This is a bit of life imitating art, as Downey Jr. spent 11 films portraying a character who sought to save the planet (or, in some cases, the universe).

DHS warns of "heightened threat" because of domestic extremism

Supporters of former President Trump protest inside the U.S. Capitol on Jan. 6. Photo: Roberto Schmidt/AFP via Getty Images

The Department of Homeland Security on Wednesday issued an advisory warning of a "heightened threat environment" in the U.S. because of "ideologically-motivated violent extremists."

Why it matters: DHS believes the threat of violence will persist for "weeks" following President Biden's inauguration. The extremists include those who opposed the presidential transition, people spurred by "grievances fueled by false narratives" and "anger over COVID-19 restrictions ... and police use of force[.]"