A magnitude 5.1 earthquake struck off Taiwan’s eastern coast at 7:32 p.m. local time today, prompting a national alert for Hualien County. The quake, which occurred at a relatively shallow depth of 31.6 kilometers, was felt across a wide swath of the island, from Yilan County in the northeast to Tainan in the south. Authorities have warned of the potential for aftershocks measuring up to magnitude 5.0 in the coming days, and Taiwan Railways Administration has implemented speed restrictions as a precaution.
A magnitude 5.1 earthquake struck off the eastern coast of Taiwan at 7:32 p.m. local time today, according to the Central Weather Bureau’s Seismological Center. Seismological Center Director Lin Tsu-wei stated the quake occurred in a zone where the Eurasian and Philippine Sea plates meet, an area prone to larger seismic activity, and that further earthquakes of magnitude 4.5 to 5.0 are possible within the next three days.
The Central Weather Bureau reported the earthquake occurred at a depth of 31.6 kilometers (19.6 miles), with a maximum intensity of 4. The highest measured intensity levels were recorded in Hualien County at 4, Yilan County at 3, and Nantou, Taoyuan, Zhubei City, New Taipei City at 2. Intensity 1 was felt in Taitung, Taichung, Miaoli, Taipei, Zhubei County, Keelung, Yunlin, Chiayi County and City, and Tainan.
Lin Tsu-wei explained that the earthquake triggered a national alert, prompting the issuance of a national warning for Hualien County. The cause of the earthquake was the collision between the Eurasian and Philippine Sea plates. He reiterated the possibility of aftershocks measuring between 4.5 and 5.0 magnitude within the next 72 hours.
Analyzing historical earthquake data since 1990 from the epicenter’s location, Lin Tsu-wei noted that there have been 20 earthquakes of magnitude 5 or greater. The largest of these was a 6.56 magnitude quake on April 3, 2024, followed by a 6.31 magnitude quake on April 27, 2024, and a 6.26 magnitude quake on February 6, 2018. Most of these quakes were shallow, occurring within 50 kilometers of the surface.
Taiwan Railways Administration (TRA) reported that the earthquake, centered 18.3 kilometers northeast of Hualien County Government, occurred at 7:32 p.m. The intensity at Chongde Station was recorded at 4, while Hualien, Heping, Heren, Nan’ao, and Sunian stations registered an intensity of 3. TRA implemented speed restrictions on trains between Heren and Xincheng stations, initially operating at 30 kilometers per hour for the first train and 60 kilometers per hour for subsequent trains, pending track inspections to ensure safety.
Trains between Yilan and Heren, and Xincheng and Fenglin stations were also subject to speed restrictions, with the first train traveling at 60 kilometers per hour until reaching the next station, where the tracks would be inspected before resuming normal speeds.
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