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

Updated: Nov 28, 2023 17:13 GMT -
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In 2021, Yokotsu volcano has had 20 quakes of magnitudes above 2 and up to 3.5:

  • 7 quakes above magnitude 3
  • 13 quakes between magnitude 2 and 3

Strongest: Mag. 3.5 Earthquake 38 km N of Hakodate, Hokkaido, Japan -

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Quakes, magnitude and depth over time

Earthquake depth plot
Depth and magnitude of quakes versus time plot
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Showing quakes magnitude 0.1 or higher (20 quakes):
Date and timeMag
Depth		DistanceLocationDetailsMap
Friday, December 24, 2021 GMT (1 quake)
Dec 24, 2021 01:16 pm (GMT +9)
(Dec 24, 2021 04:16 GMT)
3.1

120 km		27 km (17 mi)Japan Sea, 10.7 km southwest of Hakodate, Hokkaido, Japan MoreMap
Wednesday, December 1, 2021 GMT (1 quake)
Dec 2, 2021 04:51 am (GMT +9)
(Dec 1, 2021 19:51 GMT)
3.1

99 km		33 km (21 mi)Japan Sea, 24 km east of Hakodate, Hokkaido, Japan MoreMap
Thursday, November 4, 2021 GMT (1 quake)
Nov 4, 2021 06:16 pm (GMT +9)
(Nov 4, 2021 09:16 GMT)
2.6

125 km		16 km (9.9 mi)4.2 km east of Hakodate, Hokkaido, Japan MoreMap
Monday, October 18, 2021 GMT (1 quake)
Oct 18, 2021 05:28 pm (GMT +9)
(Oct 18, 2021 08:28 GMT)
3.2

18 km		16 km (9.9 mi)Hokkaido, Japan MoreMap
Monday, October 4, 2021 GMT (1 quake)
Oct 4, 2021 07:31 pm (GMT +9)
(Oct 4, 2021 10:31 GMT)
2.6

164 km		35 km (22 mi)Japan Sea, 20 km southeast of Hakodate, Hokkaido, Japan MoreMap
Tuesday, September 14, 2021 GMT (2 quakes)
Sep 15, 2021 06:54 am (GMT +9)
(Sep 14, 2021 21:54 GMT)
3.2

139 km		33 km (21 mi)North Pacific Ocean, 14 km southwest of Muroran, Hokkaido, Japan 1 reportMoreMap
Sep 14, 2021 06:54 pm (GMT +9)
(Sep 14, 2021 09:54 GMT)
2.6

12 km		9.4 km (5.8 mi)16 km northeast of Hakodate, Hokkaido, Japan 1 reportMoreMap
Friday, September 3, 2021 GMT (1 quake)
Sep 4, 2021 07:52 am (GMT +9)
(Sep 3, 2021 22:52 GMT)
2.7

119 km		32 km (20 mi)North Pacific Ocean, 15 km southwest of Muroran, Hokkaido, Japan MoreMap
Tuesday, August 24, 2021 GMT (1 quake)
Aug 24, 2021 07:52 pm (GMT +9)
(Aug 24, 2021 10:52 GMT)
2.6

116 km		7.2 km (4.5 mi)25 km north of Hakodate, Hokkaido, Japan MoreMap
Tuesday, July 13, 2021 GMT (1 quake)
Jul 14, 2021 04:54 am (GMT +9)
(Jul 13, 2021 19:54 GMT)
2.5

138 km		19 km (12 mi)23 km north of Honchō, Kameda-gun, Hokkaido, Japan MoreMap
Sunday, June 6, 2021 GMT (1 quake)
Jun 6, 2021 07:40 pm (GMT +9)
(Jun 6, 2021 10:40 GMT)
2.9

110 km		23 km (14 mi)North Pacific Ocean, 29 km south of Muroran, Hokkaido, Japan MoreMap
Monday, May 31, 2021 GMT (1 quake)
May 31, 2021 11:37 am (GMT +9)
(May 31, 2021 02:37 GMT)
2.5

123 km		6.6 km (4.1 mi)24 km north of Hakodate, Hokkaido, Japan MoreMap
Sunday, May 9, 2021 GMT (1 quake)
May 9, 2021 02:51 pm (GMT +9)
(May 9, 2021 05:51 GMT)
2.6

9.7 km		17 km (10.6 mi)North Pacific Ocean, 25 km northeast of Honchō, Kameda-gun, Hokkaido, Japan MoreMap
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About these data
Estimated combined seismic energy released: 4 x 1010 joules (11.2 megawatt hours, equivalent to 9.63 tons of TNT) | about seismic energy
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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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