Strong mag. 6.8 earthquake - Ryukyu Islands, Japan, on Saturday, 3 November 1923 at 16:19 (GMT)
Strong magnitude 6.8 earthquake at 35 km depth
Magnitude: 6.8
Depth: 35.0 km
Epicenter latitude / longitude: 28.99°N / 129.973°E
(Japan)Nearest volcano: Akuseki-jima (64 km / 40 mi)
Nearby towns and cities:
84 km (52 mi) NE of Naze (pop: 41,400)
170 km (106 mi) SSW of Miyanoura (Kumage District) (pop: 6,540)
218 km (135 mi) SSW of Nishinoomote (pop: 17,800)
255 km (159 mi) S of Makurazaki (pop: 25,000)
258 km (160 mi) SSW of Ibusuki (pop: 29,700)
279 km (174 mi) SSW of Kanoya (pop: 82,300)
514 km (320 mi) S of Fukuoka (pop: 1,392,300)
1178 km (732 mi) SW of Tokyo (pop: 8,336,600)
Primary data source: USGS
Estimated released energy: 1 x 1015 joules (278 gigawatt hours, equivalent to 2.4 x 105 tons of TNT or 14.9 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.
| Magnitude | Depth | Location | Source |
| M 6.8 | 35 km | Ryukyu Islands, Japan | USGS |
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Aftershocks of the 6.8 quake Ryukyu Islands, Japan, 3 November 16:19 UTC
More info
Recorded aftershocks, latest first (1 quakes):- 05 Nov 1923 21:28 UTC| M 6.9 |35 km (21.7 mi) depth|31 km (19 mi) distance| USGS | Strong mag. 6.9 earthquake - Ryukyu Islands, Japan, on Monday, 5 November 1923 at 21:28 (GMT)
Earlier earthquakes in the same area
Strong mag. 6.8 earthquake - Ryukyu Islands, Japan, on Saturday, 3 November 1923 at 16:19 (GMT)Click here to search our database for earlier earthquakes in the same area since 1900!
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