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Strong mag. 6.3 earthquake - Sumbawa Region, Indonesia on Friday, 7 October 1977

Strong mag. 6.3 earthquake  - Sumbawa Region, Indonesia on Friday, 7 October 1977
Date & time: Friday, 7 October 1977 12:10 UTC
Magnitude: 6.3
Depth: 33.0 km
Epicenter latitude / longitude: 9.952°S / 117.319°E (Indonesia)
Nearest volcano: Sangenges (154 km / 96 mi)
Nearby towns and cities:
163 km (101 mi) S of Sumbawa Besar (pop: 52,700)
172 km (107 mi) S of Pototano (pop: 5,000)
177 km (110 mi) SE of Labuan Lombok (pop: 10,000)
180 km (112 mi) SE of Praya (pop: 35,200)
193 km (120 mi) SE of Lembar (pop: 10,000)
1226 km (762 mi) SE of Jakarta (pop: 8,540,100)
Primary data source: USGS
Estimated released energy: 1.8 x 1014 joules (49.4 gigawatt hours, equivalent to 42502 tons of TNT or 2.7 atomic bombs!) [learn more]
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.
TimeMag. / DepthLocationSource
Fri, 7 Oct 12:10 UTCM 6.3 / 33 kmSumbawa Region, 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 yet. If you felt it be the first to report it!

Aftershocks of the 6.3 quake: Sumbawa Region, Indonesia, 7 Oct 1977 12:10

More info
Recorded aftershocks, latest first (41 quakes):
  • 03 Apr 1978 15:12 UTC
    | M 4.8 |
    33 km (20.5 mi) depth
    |
    41 km (25 mi) distance
    | USGS | Details
  • 25 Feb 1978 14:12 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    23 km (14 mi) distance
    | USGS | Details
  • 25 Feb 1978 08:42 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    15 km (9 mi) distance
    | USGS | Details
  • 25 Feb 1978 07:54 UTC
    | M 5.0 |
    39 km (24.2 mi) depth
    |
    32 km (20 mi) distance
    | USGS | Details
  • 25 Feb 1978 07:48 UTC
    | M 4.7 |
    33 km (20.5 mi) depth
    |
    55 km (34 mi) distance
    | USGS | Details
  • 25 Feb 1978 06:10 UTC
    | M 5.6 |
    33 km (20.5 mi) depth
    |
    39 km (24 mi) distance
    | USGS | Details
  • 19 Nov 1977 17:33 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    23 km (14 mi) distance
    | USGS | Details
  • 04 Nov 1977 16:55 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 04 Nov 1977 16:02 UTC
    | M 4.9 |
    33 km (20.5 mi) depth
    |
    9 km (6 mi) distance
    | USGS | Details
  • 31 Oct 1977 18:56 UTC
    | M 5.0 |
    39 km (24.2 mi) depth
    |
    60 km (37 mi) distance
    | USGS | Details
  • 25 Oct 1977 06:50 UTC
    | M 5.6 |
    33 km (20.5 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 20 Oct 1977 11:35 UTC
    | M 5.3 |
    33 km (20.5 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 17 Oct 1977 09:53 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details
  • 16 Oct 1977 23:13 UTC
    | M 5.0 |
    33 km (20.5 mi) depth
    |
    31 km (19 mi) distance
    | USGS | Details
  • 16 Oct 1977 21:22 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    29 km (18 mi) distance
    | USGS | Details
  • 16 Oct 1977 21:09 UTC
    | M 5.8 |
    33 km (20.5 mi) depth
    |
    33 km (20 mi) distance
    | USGS | Details
  • Show all

Earlier earthquakes in the same area

Strong mag. 6.3 earthquake - Sumbawa Region, Indonesia on Friday, 7 October 1977

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