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Magnitude 4.4 earthquake strikes near Numata, Gunma, Japan

dim., 18 juil. 2021, 10:04
4.4 quake 18 Jul 6:50 pm (GMT +9)
4.4 quake 18 Jul 6:50 pm (GMT +9)
Japan's National Research Institute for Earth Science and Disaster Resilience (NIED) reported a magnitude 4.4 quake in Japan near Numata, Gunma, only 13 minutes ago. The earthquake hit early evening on Sunday 18 July 2021 at 6:50 pm local time at a very shallow depth of 3.7 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 European-Mediterranean Seismological Centre (EMSC) which listed the quake at magnitude 4.7.
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 Shiozawa (pop. 20,200) located 38 km from the epicenter, Nikkō (pop. 16,000) 45 km away, Tōkamachi (pop. 41,100) 46 km away, Numata (pop. 45,500) 49 km away, and Imaichi (pop. 64,300) 51 km away.

Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Nagaoka (pop. 195,300) located 59 km from the epicenter, Kanuma (pop. 94,900) 68 km away, and Maebashi (pop. 282,700) 73 km away.
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.
If you felt it, report it through our site or app right now!
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Earthquake data:
Je l'ai ressenti!

Date & heure: 18 Jul 2021 6:50 pm (GMT +9) local time (18 Jul 2021 09:50 GMT)
Magnitude: 4.4
Profondeur: 3.7 km
Épicentre latitude / longitude: 37.04°N / 139.27°E (Gunma, Japan)
Source de données principale: NIED

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