Light magnitude 4.2 earthquake at 33 km depth
24 May 03:46 UTC: First to report: VolcanoDiscovery after 3 minutes.
24 May 03:50: Now using data updates from NIED
24 May 04:06: Now using data updates from USGS
25 May 01:58: Hypocenter depth recalculated from 35.2 to 32.8 km (from 22 to 20 mi). Epicenter location corrected by 0.9 km (0.6 mi) towards E.
Update Tue, 24 May 2022, 04:09Magnitude 4.2 earthquake strikes near Tokyo, Japan
4.2 quake Chiba, 31 km east of Tokyo, Japan, May 24, 2022 12:43 pm (GMT +9)
The United States Geological Survey reported a magnitude 4.2 quake in Japan near Tokyo, only 26 minutes ago. The earthquake hit around noon on Tuesday, May 24th, 2022, at 12:43 pm local time at a moderately shallow depth of 35.2 km. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
Our monitoring service identified a second report from the citizen-seismograph network of RaspberryShake which listed the quake at magnitude 4.2 as well. Other agencies reporting the same quake include Japan's National Research Institute for Earth Science and Disaster Resilience (NIED) at magnitude 3.8, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.2.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Shiroi (pop. 55,300) located 7 km from the epicenter, Matsudo (pop. 470,300) 12 km away, Abiko (pop. 131,800) 13 km away, Kashiwa (pop. 340,200) 13 km away, Nagareyama (pop. 156,000) 16 km away, Yotsukaidō (pop. 86,700) 17 km away, Chiba (pop. 919,700) 19 km away, and Sakura (pop. 182,500) 19 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Tokyo (pop. 8,336,600) located 31 km from the epicenter, and Yokohama (pop. 3,574,400) 49 km away.
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