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— The aftershocks from the July 4th magnitude 6.4 earthquake will probably “go on for months, if not years,” Caltech seismologist Egill Hauksson said. That means the odds are decent that there The number of aftershocks following an earthquake can vary depending on the magnitude and location of the earthquake. Generally, smaller earthquakes tend to have fewer aftershocks, while larger earthquakes can have numerous aftershocks that can last for weeks or even months. Magnitude of the earthquake and aftershocks The 1994 Northridge earthquake affected Greater Los Angeles, California, United States, on January 17, 1994, at 04:30:55 PST. The epicenter of the moment magnitude 6.7 (Mw) blind thrust earthquake was beneath the San Fernando Valley. [3] Lasting approximately 8 seconds and achieving a peak ground acceleration of over 1.7 g, it was the largest There were 616 deaths confirmed and two people remain missing. Over 600 fatalities occurred in Ishikawa, six in Niigata and five more in Toyama. The mainshock also injured over 1,300 people and damaged 193,529 structures across nine prefectures. 4 Of these, 228 deaths were directly attributed to the earthquake, and the other 388 were disaster-related deaths aggravated by fear of aftershocks Earthquake locations and epicenters today and in the last few days - the most recent earthquakes On the morning of July 4th, a M6.4 earthquake broke the ground surface mostly along a SW-NE striking fault but produced aftershocks on both SW-NE and NW-SE striking faults (DuRoss et al., 2020). The two faults formed a distinctive ‘L’ shape that was apparent in the early aftershock sequence. On July 4th, 2019, as millions of Southern Californians looked forward to fireworks and other celebrations, earthquake shaking rumbled across much of California, causing tall buildings in the Los Angeles region to sway noticeably. Following a significant earthquake, this aftershock forecast can provide situational awareness of the expected number of aftershocks, as well as the probability of subsequent larger earthquakes. Specifically, we forecast: the probability of future moderate (M6+) to large (M7+) earthquakes. On 28 March 2025 at 12:50:52 MMT (06:20:52 UTC), a Mw 7.7–7.9 earthquake struck the Sagaing Region of Myanmar, with an epicenter close to Mandalay, the country's second-largest city. The shaking caused by this strike-slip shock reached a maximum Modified Mercalli intensity of X (Extreme). It was the most powerful earthquake to strike Myanmar since 1912, [1] and the second deadliest in It was the most powerful earthquake ever recorded in Japan, and the fourth most powerful earthquake recorded in the world since modern seismography began in 1900. 333435 The earthquake triggered powerful tsunami waves that may have reached heights of up to 40.5 meters (133 ft) in Miyako in Tōhoku's Iwate Prefecture, 3637 and which, in the Sendai area, traveled at 700 km/h (435 mph) 38 and up Stay updated on the latest earthquakes with this interactive map from the U.S. Geological Survey. By using a huge catalog of past aftershock sequences, van der Elst and Page were able to accurately forecast how many aftershocks were likely to occur in any new sequence. And in a major earthquake, like Northridge, there were thousands of aftershocks. We didn’t feel all of them, but we definitely felt the magnitude 6.0 aftershock that happened one minute after the main quake. This initial earthquake was followed by numerous aftershocks on July 5, 2019, the most significant being a M5.4 earthquake. Then, later on July 5, 2019, a M7.1 earthquake occurred on an orthogonal fault and was followed by more than 14,000 aftershocks. Recent Earthquakes in California and Nevada Earthquakes recorded for the last week (168 hours). Times are local (PST or PDT). The most recent earthquakes are at the top of the list. Click on the word "map" or "MAP" to see a map displaying the earthquake. Click on an event "DATE" to get additional text information. Magnitude 3 and greater earthquakes are printed in bold type. The top three (FOX40.COM) — California experienced one of its largest earthquakes in the last 25 years that triggered more than a dozen aftershocks. At 10:44 a.m., an M7.0 earthquake was recorded at a dept The July 2019 Ridgecrest earthquakes consist of three main shocks of magnitudes 6.4, 5.4, and 7.1, each followed by a flurry of aftershocks of substantially lower magnitude. Aftershocks can compound the impacts of a major earthquake, disrupting recovery efforts and potentially further damaging weakened buildings and infrastructure. Forecasts of the probability of aftershocks can therefore aid decision-making during earthquake response and recovery. The largest earthquakes were a magnitude 6.4 (moment magnitude scale Mw) on July 4 and a Mw 7.1 on July 5. Thousands of aftershocks were recorded and still continue to occur. Most of the aftershocks ranked in the magnitude 2-to-3 range, with a few in the magnitude 3-to-4 range, well below the Fourth of July's magnitude 6.4 earthquake centered near Ridgecrest,
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