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Major mag. 7.7 earthquake - Near the East Coast of Honshu, Japan on Monday, 23 May 1938

Major mag. 7.7 earthquake  - Near the East Coast of Honshu, Japan on Monday, 23 May 1938
Date & time: Monday, 23 May 1938 07:18 UTC
Magnitude: 7.7
Depth: 15.0 km
Epicenter latitude / longitude: 36.517°N / 141.491°E (Japan)
Nearest volcano: Nasu (152 km / 94 mi)
Nearby towns and cities:
73 km (45 mi) SE of Takahagi (pop: 33,600)
73 km (45 mi) SE of Kitaibaraki (pop: 50,800)
76 km (47 mi) E of Hitachi (pop: 186,300)
178 km (111 mi) NE of Saitama (pop: 1,193,400)
186 km (116 mi) NE of Tokyo (pop: 8,336,600)
194 km (121 mi) NE of Kawasaki (pop: 1,306,800)
Primary data source: USGS
Estimated released energy: 2.2 x 1016 joules (6219 gigawatt hours, equivalent to 5.4 x 106 tons of TNT or 334.4 atomic bombs!) [learn more]
If you felt this quake (or if you were near the epicenter), please share your experience and submit a short "I felt it" report! Other users would love to hear about it!
Also if you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable also to earthquake science and earthquake hazard analysis and mitigation efforts. You can use your device location or the map to indicate where you were during the earthquake. Thank you!

Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
TimeMag. / DepthLocationSource
Mon, 23 May 07:18 UTCM 7.7 / 15 kmNear the East Coast of Honshu, JapanUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake yet. If you felt it be the first to report it!

Aftershocks of the 7.7 quake: Near the East Coast of Honshu, Japan, 23 May 1938 07:18

More info
Recorded aftershocks, latest first (14 quakes):

Earlier earthquakes in the same area

Major mag. 7.7 earthquake - Near the East Coast of Honshu, Japan on Monday, 23 May 1938
 

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