Moderate mag. 4.4 earthquake - Unzen-shi, 17 km southeast of Isahaya, Nagasaki, Japan, on Thursday, 8 November 1984 at 17:18 (GMT)
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Moderate magnitude 4.4 earthquake at 10 km depth
Date & time: 8 Nov 1984 17:18:26 UTC
Depth: 9.8 km
Epicenter latitude / longitude: 32.778°N / 130.205°E (Unzen-shi, Nagasaki, Japan)
Nearest volcano: Unzen (9 km / 6 mi)
Nearby towns and cities:
15 km (9 mi) W of Shimabara (pop: 38,100) --> See nearby quakes!
17 km (10 mi) ESE of Isahaya (pop: 97,400) --> See nearby quakes!
28 km (18 mi) SE of Ōmura (pop: 89,900) --> See nearby quakes!
30 km (19 mi) E of Nagasaki (pop: 410,200) --> See nearby quakes!
30 km (19 mi) E of Obita (pop: 45,300) --> See nearby quakes!
34 km (21 mi) E of Togitsu (Nishisonogi District) (pop: 29,400) --> See nearby quakes!
36 km (23 mi) SW of Omuta (Fukuoka) (pop: 132,000) --> See nearby quakes!
48 km (30 mi) NW of Honmachi (Kumamoto) (pop: 104,300) --> See nearby quakes!
94 km (58 mi) SSW of Fukuoka (pop: 1,392,300) --> See nearby quakes!
930 km (578 mi) WSW of Tokyo (pop: 8,336,600) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.5 x 1011 joules (69.8 megawatt hours, equivalent to 60 tons of TNT) 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.
|4.4||9.8 km||Kyushu, Japan||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.