Very strong mag. 6.4 earthquake - Hiroo-gun, 46 km south of Obihiro, Hokkaido, Japan, on Tuesday, 20 January 1970 at 17:33 (GMT)
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Very strong magnitude 6.4 earthquake at 35 km depth
1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Depth: 35.1 km
Epicenter latitude / longitude: 42.523°N / 143.05°E (Hiroo-gun, Hokkaido, Japan)
Nearest volcano: Shikaribetsu Group (83 km / 52 mi)
Nearby towns and cities:
46 km (28 mi) SSW of Obihiro (pop: 173,900) --> See nearby quakes!
54 km (33 mi) SSW of Otofuke (pop: 40,900) --> See nearby quakes!
60 km (37 mi) ENE of Shizunai-furukawachō (pop: 22,400) --> See nearby quakes!
119 km (74 mi) ESE of Chitose (pop: 92,900) --> See nearby quakes!
119 km (74 mi) E of Tomakomai (pop: 174,800) --> See nearby quakes!
119 km (74 mi) WSW of Kushiro (pop: 183,600) --> See nearby quakes!
129 km (80 mi) SE of Iwamizawa (pop: 85,100) --> See nearby quakes!
139 km (86 mi) ESE of Ebetsu (pop: 134,000) --> See nearby quakes!
151 km (94 mi) ESE of Sapporo (pop: 1,883,000) --> See nearby quakes!
813 km (505 mi) NNE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1014 joules (69.8 gigawatt hours, equivalent to 60036 tons of TNT or 3.8 atomic bombs!) More info
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.
|6.4||35 km||Hokkaido, Japan region||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
More infoRecorded aftershocks, latest first (0 quakes):
So far, no aftershocks have been registered.