Very strong mag. 6.4 earthquake - Indian Ocean, 27 km south of Pulau Peucang Island, Banten, Indonesia, on Saturday, May 12, 1923 at 01:20 (GMT)

Very strong mag. 6.4 earthquake - Indian Ocean, 27 km south of Pulau Peucang Island, Banten, Indonesia, on Saturday, May 12, 1923 at 01:20 (GMT)

Very strong magnitude 6.4 earthquake at 25 km depth

Date & time: May 12, 1923 01:20:08 UTC
Magnitude: 6.4
Depth: 25.0 km
Epicenter latitude / longitude: 6.966°S / 105.171°E (Indian Ocean, Indonesia)
Antipode: 6.966°N / 74.829°W
Nearest volcano: Krakatau (100 km / 62 mi)
Nearby towns and cities:
98 km (61 mi) SW of Labuan (Kabupaten Pandeglang) (pop: 33,600) --> See nearby quakes!
127 km (79 mi) SW of Pandeglang (pop: 92,300) --> See nearby quakes!
137 km (85 mi) WSW of Rangkasbitung (pop: 126,900) --> See nearby quakes!
144 km (90 mi) SW of Serang (pop: 164,800) --> See nearby quakes!
163 km (101 mi) SW of Kresek (pop: 110,200) --> See nearby quakes!
169 km (105 mi) WSW of Cikupa (pop: 174,000) --> See nearby quakes!
171 km (106 mi) S of Bandar Lampung (pop: 800,300) --> See nearby quakes!
203 km (126 mi) WSW of Jakarta (pop: 8,540,100) --> See nearby quakes!
269 km (167 mi) W of Bandung (pop: 1,699,700) --> See nearby quakes!
388 km (241 mi) N of Flying Fish Cove (Christmas Island) (pop: 500) --> 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
Show interactive Map
[smaller] [bigger]
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!
If you did NOT feel the quake although you were in the area, please report it! Your contribution is valuable to earthquake science, seismic 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.
6.425 kmSunda Strait, IndonesiaUSGS
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.
Volcanoes & Earthquakes - new app for Android


[More info]

Recorded aftershocks, latest first (0 quake)

So far, no aftershocks have been registered.

Earlier earthquakes in the same area

Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:
  • Improved multilanguage support
  • Tsunami alerts
  • Faster responsiveness
Thanks to your past donations, these features have been added recently:
  • Earthquake archive from 1900 onwards
  • Detailed quake stats
  • Additional seismic data sources
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.