Sunday Yilan quake an independent event: CWAStaff writer, with CNAThe Central Weather Administration (CWA) said a magnitude 4.9 earthquake that struck off the coast of eastern Taiwan yesterday was an independent event and part of a stress-adjustment process. The earthquake occurred at 4:47pm, with its epicenter at sea about 45.4km south of Yilan County Hall at a depth of 5.9km, the CWA said. The peak ground acceleration felt during a magnitude 4.9 earthquake at 4:47pm yesterday is pictured in a graphic. Since 1973, there have been 20 earthquakes of magnitude 5.5 or higher within a 20km radius of the epicenter of yesterday's magnitude 4.9 quake, including a magnitude 6 event on May 10, 2024, he added. Wu said earthquakes occurring in basins are typically shallow, citing the Friday and early Sunday quakes, which had depths of about 10km or less.

Source: Taipei Times January 19, 2026 03:35 UTC