Major magnitude. 7.4 earthquake - Bonin Islands, Japan Region, on Tuesday, 21 December 2010 at 17:19 (GMT)

Major magnitude. 7.4 earthquake  - Bonin Islands, Japan Region, on Tuesday, 21 December 2010 at 17:19 (GMT)

Major magnitude 7.4 earthquake at 14 km depth

Date & time: 21 Dec 2010 05:19:40 UTC###AGESTRINGCOPY###
Magnitude: 7.4
Depth: 14.0 km
Epicenter latitude / longitude: 26.901°N / 143.698°E (Japan)
Nearest volcano: unnamed (116 km / 72 mi)
Nearby towns and cities:
1049 km (652 mi) SSE of Tokyo (pop: 8,336,600)
Primary data source: USGS
Estimated released energy: 7.9 x 1015 joules (2206 gigawatt hours, equivalent to 1.9 x 106 tons of TNT or 118.7 atomic bombs!) More info
[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!
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.
MagnitudeDepthLocationSource
M 7.414 kmBonin Islands, Japan regionUSGS
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!
Volcanoes & Earthquakes - new app for Android

Aftershocks of the 7.4 quake Bonin Islands, Japan Region, 21 December 17:19 UTC

More info
Recorded aftershocks, latest first (1014 quakes):
  • 02 Dec 2012 03:08 UTC
    | M 4.2 |
    40 km (24.9 mi) depth
    |
    150 km (94 mi) distance
    | JMA | Details
  • 28 Nov 2012 15:07 UTC
    | M 5.1 |
    61.3 km (38.1 mi) depth
    |
    66 km (41 mi) distance
    | USGS | Details
  • 25 Nov 2012 15:00 UTC
    | M 4.0 |
    5 km (3.1 mi) depth
    |
    198 km (123 mi) distance
    | JMA | Details
  • 21 Nov 2012 07:02 UTC
    | M 4.2 |
    33 km (20.5 mi) depth
    |
    175 km (109 mi) distance
    | JMA | Details
  • 06 Nov 2012 12:13 UTC
    | M 4.9 |
    33.9 km (21.1 mi) depth
    |
    211 km (131 mi) distance
    | USGS | Details
  • 09 Oct 2012 20:43 UTC
    | M 4.8 |
    30 km (18.6 mi) depth
    |
    201 km (125 mi) distance
    | EMSC | Details
  • 09 Oct 2012 20:43 UTC
    | M 4.2 |
    98 km (60.9 mi) depth
    |
    209 km (130 mi) distance
    | JMA | Details
  • 05 Oct 2012 01:51 UTC
    | M 4.4 |
    35 km (21.7 mi) depth
    |
    46 km (29 mi) distance
    | USGS | Details
  • 29 Sep 2012 09:52 UTC
    | M 4.7 |
    10.1 km (6.3 mi) depth
    |
    10 km (6 mi) distance
    | USGS | Details
  • 20 Sep 2012 08:44 UTC
    | M 4.3 |
    10 km (6.2 mi) depth
    |
    181 km (112 mi) distance
    | USGS | Details
  • 18 Sep 2012 20:49 UTC
    | M 4.7 |
    10 km (6.2 mi) depth
    |
    37 km (23 mi) distance
    | USGS | Details
  • 08 Sep 2012 19:26 UTC
    | M 4.7 |
    22 km (13.7 mi) depth
    |
    96 km (60 mi) distance
    | USGS | Details
  • 08 Sep 2012 19:26 UTC
    | M 4.4 |
    69 km (42.9 mi) depth
    |
    99 km (62 mi) distance
    | JMA | Details
  • 05 Sep 2012 17:11 UTC
    | M 4.2 |
    20 km (12.4 mi) depth
    |
    38 km (24 mi) distance
    | JMA | Details
  • 03 Sep 2012 20:59 UTC
    | M 4.5 |
    10 km (6.2 mi) depth
    |
    11 km (7 mi) distance
    | USGS | Details
  • 29 Aug 2012 12:13 UTC
    | M 4.4 |
    10 km (6.2 mi) depth
    |
    134 km (83 mi) distance
    | USGS | Details
  • Show all

Earlier earthquakes in the same area

Major magnitude. 7.4 earthquake - Bonin Islands, Japan Region, on Tuesday, 21 December 2010 at 17:19 (GMT)
Volcanoes & Earthquakes - new app for Android
 

More on VolcanoDiscovery

 
Why is there advertising on this site?

Support us!

Maintaining the website and our free apps is a time- and cost-intensive effort.
If you find the information useful and would like to support our team to develop further features and get the upgraded ad-free version, consider making a donation (PayPal or Online cc payment).
Planned features:
  • Weather reports
  • Tsunami alerts
  • Design upgrades
Thanks to your past donations, these features have been added recently:
  • Earthquake archive back to 1900
  • Additional 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.