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California: 130 earthquakes have hit Death Valley since Oct 9. Is the Big One coming?

California: 130 earthquakes have hit Death Valley since Oct 9. Is the Big One coming?

Death Valley California

California's Death Valley has been rattled by nearly 130 earthquakes since October 9, triggering fears that the "Big One" might soon hit the region. According to USGS geophysicist Elizabeth Cochran, the largest ones to hit the national park were reported on October 25. Their magnitudes were 4.7 and 4.5.

While the tremors have not been massive, they have still been felt nearly 150 miles away in Las Vegas, local media reports suggest. The fault system on which the park sits witnesses intense seismic activity and is capable of producing tremors of magnitude up to seven.

Experts say that the swarm of quakes in the region is not unusual. However, their sheer number hasraised concerns that a bigger, more powerful quake might soon occur.

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The Las Vegas Valley is at significant risk of being impacted by this level of shaking, and so Christie Rowe, Director of the Nevada Seismological Lab at the University of Nevada, Reno, told KTNV Las Vegas that they are carefully monitoring these swarms.

As per reports, the most intense activity occurred on October 25 when a magnitude 4.2 quake hit east of Stovepipe Wells at around 12:00 pm. At 1 am, a magnitude 4.7 quake was recorded in the same region, the largest one recorded so far.

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Rowe said these earthquakes "increase our alert levels because sometimes a larger earthquake follows." She says earthquake clusters are common in Nevada. As one cluster dies down, another one is on its way, and this pattern continues along the California-Nevada border or on central Nevada.

Death Valley and the Big One

Death Valley has witnessed a few big quakes in the past. In 2019, a magnitude 7.1 hit a region 30 miles away from this current swarm. Its impact was so huge that it left a deep crack in the ground near Ridgecrest, California. Tourist gather at the site to catch a glimpse of the crevice.

This was the largest quake to hit the region in 20 years. It was preceded by a magnitude 6.4 foreshock, and followed by 28 quakes of magnitude 4.5 or greater within a span of five days.

Death Valley sits on three main fault lines - Northern Death Valley Fault Zone (NDVFZ), the Black Mountains Fault Zone (BMFZ), and the Southern Death Valley Fault Zone (SDVFZ).

Californians have often heard about a hypothetical high-magnitude earthquake known as The Big One. Experts say that it could strike at any time along the San Andreas fault.

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Anamica Singh

Anamica Singh is a Senior News Editor at WION, bringing over 17 years of deep media and journalism experience to the platform. Specialising in high-impact global journalism, she le...Read More