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Past earthquakes near Unzen volcano: 2021 - list, stats and map

Updated: Jan 28, 2023 09:18 GMT -
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Quakes in 2021:

  • 4 quakes above magnitude 4
  • 12 quakes between magnitude 3 and 4
  • 13 quakes between magnitude 2 and 3
In 2021, Unzen volcano was shaken by 4 quakes of magnitude 4.0 or above, 12 quakes between 3.0 and 4.0, and 13 quakes between 2.0 and 3.0. See all quakes in the past 24 hours!

Strongest quake: Mag. 4.2 | 1.1 km W of Honmachi, Yatsushiro Shi, Prefectura de Kumamoto, Japan -

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Earthquake Catalog

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Depth and magnitude of quakes versus time plot
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Showing quakes magnitude 0.1 or higher (29 quakes):
Date and timeMag
Depth
DistanceLocationDetailsMap
Wednesday, December 29, 2021 GMT (1 quake)
Dec 30, 2021 8:53 am (GMT +9) (Dec 29, 2021 23:53 GMT)
2.9

8.7 km
43 km (27 mi)3.6 km east of Honmachi, Yatsushiro Shi, Prefectura de Kumamoto, Japan MoreMap
Tuesday, December 28, 2021 GMT (1 quake)
Dec 28, 2021 11:59 am (GMT +9) (Dec 28, 2021 02:59 GMT)
2.9

10.6 km
37 km (23 mi)East China Sea, 5.6 km west of Honmachi, Japan MoreMap
Tuesday, December 7, 2021 GMT (1 quake)
Dec 7, 2021 9:46 am (GMT +9) (Dec 7, 2021 00:46 GMT)
2.7

11 km
28 km (17 mi)East China Sea, 12 km southwest of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
Saturday, November 20, 2021 GMT (1 quake)
Nov 20, 2021 10:05 pm (GMT +9) (Nov 20, 2021 13:05 GMT)
3.4

10 km
20 km (12 mi)East China Sea, 18 km west of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
Monday, November 1, 2021 GMT (1 quake)
Nov 1, 2021 10:40 pm (GMT +9) (Nov 1, 2021 13:40 GMT)
2.5

12 km
23 km (14 mi)East China Sea, 15 km west of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
Friday, October 15, 2021 GMT (1 quake)
Oct 16, 2021 8:39 am (GMT +9) (Oct 15, 2021 23:39 GMT)
3.1

9.2 km
38 km (24 mi)Prefectura de Kumamoto, Japan MoreMap
Sunday, September 19, 2021 GMT (1 quake)
Sep 19, 2021 11:14 pm (GMT +9) (Sep 19, 2021 14:14 GMT)
3.5

14 km
35 km (22 mi)20 km south of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
Sunday, September 12, 2021 GMT (1 quake)
Sep 13, 2021 12:16 am (GMT +9) (Sep 12, 2021 15:16 GMT)
3.8

12 km
33 km (21 mi)4.8 km west of Kumamoto, Prefectura de Kumamoto, Japan 2 reportsMoreMap
Thursday, September 2, 2021 GMT (1 quake)
Sep 3, 2021 3:03 am (GMT +9) (Sep 2, 2021 18:03 GMT)
3.4

12 km
37 km (23 mi)East China Sea, 5.7 km west of Honmachi, Japan MoreMap
Monday, August 16, 2021 GMT (1 quake)
Aug 16, 2021 7:24 pm (GMT +9) (Aug 16, 2021 10:24 GMT)
3.2

11 km
29 km (18 mi)East China Sea, 11 km southwest of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
Sunday, August 15, 2021 GMT (1 quake)
Aug 16, 2021 4:23 am (GMT +9) (Aug 15, 2021 19:23 GMT)
2.6

13 km
32 km (20 mi)7.8 km southwest of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
Sunday, July 11, 2021 GMT (1 quake)
Jul 11, 2021 21:14:20.19 (Jul 11, 2021 12:14 GMT)
3.0

62 km
30 km (19 mi)8.6 km north of Isahaya, Nagasaki, Japan MoreMap
Friday, June 25, 2021 GMT (3 quakes)
Jun 26, 2021 12:49 am (GMT +9) (Jun 25, 2021 15:49 GMT)
4.2

14 km
39 km (24 mi)1.1 km west of Honmachi, Yatsushiro Shi, Prefectura de Kumamoto, Japan 1 reportMoreMap
Jun 25, 2021 20:04:01.87 (Jun 25, 2021 11:04 GMT)
3.0

9.4 km
38 km (24 mi)2.6 km northwest of Honmachi, Yatsushiro Shi, Prefectura de Kumamoto, Japan MoreMap
Jun 25, 2021 09:28:18.65 (Jun 25, 2021 00:28 GMT)
2.9

10.9 km
18 km (11 mi)East China Sea, 20 km west of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
Wednesday, June 16, 2021 GMT (1 quake)
Jun 17, 2021 01:56:25.83 (Jun 16, 2021 16:56 GMT)
2.6

10.2 km
43 km (27 mi)3.6 km east of Honmachi, Yatsushiro Shi, Prefectura de Kumamoto, Japan MoreMap
Wednesday, April 14, 2021 GMT (1 quake)
Apr 15, 2021 04:38:43.32 (Apr 14, 2021 19:38 GMT)
2.8

15 km
14 km (8.7 mi)East China Sea, 25 km east of Nagasaki, Japan MoreMap
Friday, March 19, 2021 GMT (1 quake)
Mar 20, 2021 1:50 am (GMT +9) (Mar 19, 2021 16:50 GMT)
4.0

15 km
39 km (24 mi)1.6 km west of Honmachi, Yatsushiro Shi, Prefectura de Kumamoto, Japan MoreMap
Monday, March 8, 2021 GMT (1 quake)
Mar 8, 2021 4:47 pm (GMT +9) (Mar 8, 2021 07:47 GMT)
3.2

7.8 km
40 km (25 mi)East China Sea, 28 km south of Nagasaki, Japan MoreMap
Friday, March 5, 2021 GMT (1 quake)
Mar 6, 2021 8:45 am (GMT +9) (Mar 5, 2021 23:45 GMT)
2.5

13 km
20 km (12 mi)East China Sea, 14 km south of Omuta, Ōmuta Shi, Fukuoka, Japan MoreMap
Saturday, February 20, 2021 GMT (1 quake)
Feb 20, 2021 12:26 pm (GMT +9) (Feb 20, 2021 03:26 GMT)
2.7

12 km
34 km (21 mi)7.6 km southwest of Kumamoto, Prefectura de Kumamoto, Japan MoreMap
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Estimated combined seismic energy released: 5.9 x 1011 joules (163 megawatt hours, equivalent to 140 tons of TNT) | about seismic energy

Earthquake statistics

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Number of earthquakes over time:
Number of quakes over time
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Magnitude distribution and energy released:
Number of quakes and energy over magnitudeMagnitudes of quakes and energy over time

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