Moderate magnitude 4.7 earthquake at 10 km depth
10 Sep 02:23 UTC: First to report: EMSC after 22 minutes.
10 Sep 03:59: Hypocenter depth recalculated from 10.0 to 20.0 km (from 6.2 to 12.4 mi). Epicenter location corrected by 13 km (7.9 mi) towards NW.
10 Sep 07:06: Hypocenter depth recalculated from 20.0 to 10.0 km (from 12.4 to 6.2 mi). Epicenter location corrected by 8.3 km (5.2 mi) towards SE.
Update Fri, 10 Sep 2021, 02:27
Moderate earthquake of magnitude 4.7 just reported 93 km southeast of Okinawa, Japan
4.7 quake 10 Sep 11:01 am (GMT +9)
A shallow magnitude 4.7 earthquake was reported in the morning near Okinawa, Okinawa Shi, Japan.
According to the European-Mediterranean Seismological Centre (EMSC), the quake hit on Friday, September 10th, 2021, at 11:01 am local time at a shallow depth of 10 km. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. 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 United States Geological Survey which listed the quake at magnitude 4.7 as well.
Towns or cities near the epicenter where the quake might have been felt as very weak shaking include Katsuren-haebaru (pop. 34,200) located 86 km from the epicenter, Gushikawa (pop. 65,300) 87 km away, Nago (pop. 59,600) 91 km away, Okinawa (pop. 125,500) 93 km away, Ishikawa (pop. 22,400) 94 km away, Chinon (pop. 91,800) 95 km away, Chatan (pop. 27,800) 95 km away, Tomigusuku (pop. 55,700) 101 km away, Naha (pop. 300,800) 101 km away, and Itoman (pop. 57,200) 102 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
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