Moderate magnitude 4.9 earthquake 72 km southeast of Wakkanai, Japan

Japan's National Research Institute for Earth Science and Disaster Resilience (NIED) reported a magnitude 4.9 quake in Japan near Wakkanai, Wakkanai Shi, Hokkaido, only 13 minutes ago. The earthquake hit after midnight on Thursday, August 11th, 2022, at 12:35 am local time at a very shallow depth of 5.2 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 4.6. Other agencies reporting the same quake include the European-Mediterranean Seismological Centre (EMSC) at magnitude 4.6, and the German Research Centre for Geosciences (GFZ) at magnitude 4.6.
Based on the preliminary seismic data, the quake should have been widely felt by almost everyone in the area of the epicenter. It might have caused light to moderate damage.
Moderate shaking probably occurred in Nakagawa (pop. 1,600) located 4 km from the epicenter.
In Horonobe (pop. 2,400) located 29 km from the epicenter, the quake should have been felt as light shaking.
Weak shaking might have been felt in Toyotomi (pop. 4,100) located 40 km from the epicenter, Nayoro (pop. 26,500) 61 km away, Makubetsu (pop. 25,900) 64 km away, Wakkanai (pop. 41,600) 72 km away, and Rumoi (pop. 26,500) 108 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Asahikawa (pop. 356,600) located 121 km from the epicenter.
VolcanoDiscovery will automatically update magnitude and depth if these change and follow up if other significant news about the quake become available. If you’re in the area, please send us your experience through our reporting mechanism, either online or via our mobile app. This will help us provide more first-hand updates to anyone around the globe who wants to know more about this quake.

Earthquake data:
Date & time: Aug 11, 2022 12:35 am (GMT +9) local time (10 Aug 2022 15:35 GMT)
Magnitude: 4.9
Depth: 5.2 km
Epicenterlatitude / longitude: 44.84°N / 142.12°E (Nakagawa Gun, Hokkaido, Japan)
Primary data source: NIED
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