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Japan’s Earthquakes Since 2011
[2018.06.18]

An earthquake on June 18, 2018, caused significant shaking in Osaka. It is one of more than 20 earthquakes with a seismic intensity of 6 or above on the Japanese scale since the Great East Japan Earthquake of 2011.

At 7:58 in the morning of June 18, 2018, an earthquake centered in the north of Osaka Prefecture caused shaking of lower 6 on the Japanese seismic intensity scale in the city of Takatsuki, Osaka’s Kita Ward, and nearby areas. Upper 5 intensity shaking was recorded in Kameoka, Kyoto Prefecture, and other municipalities. The Japan Meteorological Agency estimated the temblor’s magnitude as 5.9, later upgrading it to 6.1. The hypocenter was a relatively shallow 13 kilometers below the surface, as the earthquake took place in the crust close to the Arima-Takatsuki Fault.

The Great Hanshin-Awaji Earthquake of January 17, 1995, was centered in the south of Hyōgo Prefecture, to the west of Osaka. It was the first temblor with seismic intensity of 7 since records began and caused devastation in Kobe and the surrounding area.

JMA records indicate that there have been 52 earthquakes with seismic intensity of lower 6 or above since the Great Hanshin-Awaji Earthquake. Of these, five hit intensity 7, the top score on the scale that measures shaking at a certain point on the surface. (The magnitude, meanwhile, expresses the total energy released in a quake.)

Earthquakes of Lower 6 Intensity or Above Since the Great East Japan Earthquake

Date Time Hypocenter Magnitude Seismic Intensity
June 18, 2018 7:58 Northern Osaka Prefecture 6.1 Lower 6
December 28, 2016 21:38 Northern Ibaraki Prefecture 6.3 Lower 6
October 21, 2016 14:07 Central Tottori Prefecture 6.6 Lower 6
June 16, 2016 14:21 Uchiura Bay, off Hokkaidō 5.3 Lower 6
April 16, 2016 9:48 Kumamoto, Kumamoto Prefecture 5.4 Lower 6
April 16, 2016 3:55 Aso, Kumamoto Prefecture 5.8 Upper 6
April 16, 2016 1:45 Kumamoto, Kumamoto Prefecture 5.9 Lower 6
April 16, 2016 1:25 Kumamoto, Kumamoto Prefecture 7.3 7
April 15, 2016 3:46 Kumamoto, Kumamoto Prefecture 6.4 Upper 6
April 14, 2016 22:07 Kumamoto, Kumamoto Prefecture 5.8 Lower 6
April 14, 2016 21:26 Kumamoto, Kumamoto Prefecture 6.5 7
November 22, 2014 22:08 Northern Nagano Prefecture 6.7 Lower 6
April 13, 2013 5:33 Near Awajishima, Hyōgo Prefecture 6.3 Lower 6
April 12, 2011 14:07 Central Fukushima Prefecture 6.4 Lower 6
April 11, 2011 17:16 Eastern Fukushima Prefecture 7.0 Lower 6
April 7, 2011 23:32 Off Miyagi Prefecture 7.2 Upper 6
March 15, 2011 22:31 Eastern Shizuoka Prefecture 6.4 Upper 6
March 12, 2011 5:42 Northern Nagano Prefecture 5.3 Lower 6
March 12, 2011 4:31 Northern Nagano Prefecture 5.9 Lower 6
March 12, 2011 3:59 Northern Nagano Prefecture 6.7 Upper 6
March 11, 2011 15:15 Off Ibaraki Prefecture 7.6 Upper 6
March 11, 2011 14:46 Off Sanriku 9.0 7

Created by Nippon.com based on data from the Japan Meteorological Association.
Yellow highlighting indicates temblors connected with the Great East Japan Earthquake, green highlighting the Kumamoto Earthquakes.

(Translated from Japanese. Banner photo: A sign at Osaka Prefecture’s Ibaraki-shi Station damaged by the earthquake on June 18, 2018. © Jiji.)

  • [2018.06.18]
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