The earthquake and its aftershocks were shallow, originating around four and five miles underground.
Plenty of ABC30 Insiders sent their videos into the Action Newsroom to share the shaking felt across the Valley and beyond. RELATED: Preliminary 5.9-magnitude earthquake strikes near California-Nevada border Since the first quake, there have now been more than a dozen aftershocks ranging between M 2.9 and M 4.2 The USGS registered the hit at 3:49 pm on the east side of the Sierra Nevada mountain range, near the town of Walker. (KFSN) - An earthquake that shook Central California Thursday afternoon has now been upgraded by the United States Geological Survey to a magnitude 6.0. In Asia, the stretch of the Ring of Fire reaches Japan, the Philippines, Indonesia, and even New Zealand in the Oceania continent.An earthquake that shook Central California Thursday afternoon has now been upgraded by the USGS to a magnitude 6.0.įRESNO, Calif. Within this region, earthquakes and volcanic eruptions are common, affecting countries in the Americas as far as Chile, Ecuador, Mexico, and Colombia. Tectonic plate movements are highly dynamic within the Pacific Ring of Fire, a horse shoe-shaped region across the Pacific Ocean, which includes California and all of its adjacent areas and territories in the western coast of the Americas. Regardless, the prediction is not surprising since California is situated within the seismically active region of Pacific Ring of Fire. This is based on an increased likelihood from seismic data, suggesting the state is subject to a potentially catastrophic geological event within the so-called San Andreas Fault. Previous research also showed that California is at risk of experiencing a megaquake in the future. In 1906, a 7.8-magnitude earthquake in San Francisco potentially killed 3,000 people and displaced 225,000 inhabitants. In 1857, a 7.9-magnitude earthquake occurred in Fort Tejon, killing two people but leaving a 220-mile surface scar. In the last 150 years, the state has experienced several earthquakes, wherein some caused widespread infrastructural damage, multiple deaths, and economic damage worth billions of dollars, according to the California Department of Conservation. The sudden slip releases energy in the form of waves through the rocks which we feel as tremors during earthquakes. They can vary in numbers and intensity depending on strength of the main earthquake, as well as the location of the event.Īccording to the University of Southern California (USC), the skid is primarily caused by excessive stresses in the Earth's outer layer which pushes the fault's side together.
The said motion between the rocks paves the way for the occurrence of an earthquakes, as well as its so-called lesser version of aftershocks and earthquake swarms.Īftershocks are considered to be geological vibrations or seismic waves which normally transpire after a main identifiable earthquake. A slip on a fault makes the movement and friction of rocks possible relative to each other. It had a depth of 0.5 kilometers, which means that its intensity is not relatively strong compared to deeper earthquakes under our planet.ĭespite its moderate impact, the earthquake was reportedly felt by dozens of people as far as Santa Rosa and Petaluma, as cited by The Sacramento Bee.Īlso Read: Experiencing 20 Earthquakes Last Week and 2 More Today, Central Idaho is Literally Shaking With Earthquake SwarmsĮarthquakes occur along fault lines, which are segmented by different block of rocks. The USGS said the epicenter of the earthquake transpired two kilometers west-northwest of Cobb in Lake County, California. (Photo : Photo by HAROLD POSTIC/AFP via Getty Images)
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