5.7 earthquake reported on big island of Hawaii, Earthquake reported near Malibu, California Friday afternoon; aftershocks follow

5.7 earthquake reported on big island of Hawaii

Eduardo Cuevas,

A 5.7 magnitude earthquake rocked the big island of Hawaii on Friday, according to the U.S. Geological Survey.

The earthquake was detected near Pāhala, on Hawaii's southern coast, just after 10 a.m. local time, early indicators show. The USGS recordedseveral aftershocks following the larger quake, which was originally listed at magnitude 6.3. It had a depth of nearly 22.9 miles.

The Hawaii Emergency Management Agency said the quake struck near the southeastern flank of Mauna Loa, the world's largest active volcano and one of the most active.

Residents on the island said vases and photos fell from shelves. The earthquake could be felt as far west as Oahu, a few islands over, according to USGS tracking.

The earthquake appears to have occurred deep in the magma "plumbing system" underneath Hawaii, said Mike Poland, a geophysicist with the USGS. Its depth caused the earthquake to be felt across the state of Hawaii.  

Large amounts of lava have piled up on the ocean crust to form the islands of Hawaii, he explained. Put more simply, it's like a bowling ball on top of a mattress. The mattress sags under the weight of the bowling ball, creating stressors on the mattress, Poland said. This pressure from the weight can lead to lots of seismic activity in this area of the island of Hawaii. In the last few years, the area has seen several earthquakes with magnitudes of 5 to 7 that come from deep in the "plumbing system," at what he refered to as the "mattress level."

Magnitude 4.6 temblor strikes near Malibu, rattles Southern California

 Rong-Gong Lin II, Grace Toohey, Matt Hamilton, Ashley Ahn

A magnitude 4.6 earthquake struck near Malibu on Friday and was felt across a wide swath of Southern California.

The temblor was reported at 1:47 p.m., with an epicenter about two and a half miles northeast of Leo Carrillo State Beach and about three miles northwest of El Matador State Beach. It was followed by several aftershocks. Earlier estimates listed a magnitude of 4.7 and 4.5.

There were no immediate reports of major damage. One caller in Malibu told KNX-AM there was shaking strong enough to toss items off a counter and cause a wall to crack.

Los Angeles Mayor Karen Bass said on X that the Fire Department was conducting routine surveys of the city to assess for damage, and that city teams will continue to monitor.

There have been four earthquakes of magnitude 4.0 and greater in Southern California this year.

Earthquake reported near Malibu, California Friday afternoon; aftershocks follow

 JJ Hensley

An earthquake rattled Southern California early Friday afternoon. 

The temblor measured 4.7 on the Richter Scale, according to the U.S. Geological Survey.

The earthquake was reported near Malibu at about 1:45 p.m. PST, the USGS said.

The Los Angeles Fire Department urged locals to prepare for an aftershock immediately.

"If Inside When Shaking Starts: DROP, COVER, HOLD ON! Protect Your Head + Neck While Taking Cover Under Sturdy Furniture or Near a Sturdy Interior Wall, Away From Windows and Doorways Until Shaking Stop," the department said on social media.