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Major mag. 7.5 earthquake - Southeast of the Loyalty Islands (New Caledonia) on Sunday, 4 January 1998

Major mag. 7.5 earthquake  - Southeast of the Loyalty Islands (New Caledonia) on Sunday, 4 January 1998
Date & time: Sunday, 4 January 1998 06:11 UTC
Magnitude: 7.5
Depth: 100.6 km
Epicenter latitude / longitude: 22.301°S / 170.911°E (New Caledonia)
Nearest volcano: Matthew Island (42 km / 26 mi)
Primary data source: USGS
Estimated released energy: 1.1 x 1016 joules (3117 gigawatt hours, equivalent to 2.7 x 106 tons of TNT or 167.6 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
Thu, 1 Jan 00:00 UTCM
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) scale.

Aftershocks of the 7.5 quake: Southeast of the Loyalty Islands (New Caledonia), 4 Jan 1998 06h11

Show info about this
List of recorded aftershocks, latest first (25 quakes):
  • 23 Dec 1999 06:01 UTC
    | M 5.3 |
    107.9 km (67 mi) depth
    |
    77 km (48 mi) distance
    | USGS | Details
  • 01 Dec 1999 21:45 UTC
    | M 5.6 |
    33 km (20.5 mi) depth
    |
    101 km (63 mi) distance
    | USGS | Details
  • 30 Nov 1999 16:23 UTC
    | M 5.8 |
    33 km (20.5 mi) depth
    |
    218 km (136 mi) distance
    | USGS | Details
  • 15 Nov 1999 01:39 UTC
    | M 5.1 |
    74.3 km (46.2 mi) depth
    |
    180 km (112 mi) distance
    | USGS | Details
  • 10 Aug 1999 12:21 UTC
    | M 5.5 |
    33 km (20.5 mi) depth
    |
    90 km (56 mi) distance
    | USGS | Details
  • 18 Jun 1999 14:26 UTC
    | M 5.4 |
    18.1 km (11.2 mi) depth
    |
    120 km (74 mi) distance
    | USGS | Details
  • 22 May 1999 10:16 UTC
    | M 5.1 |
    33 km (20.5 mi) depth
    |
    201 km (125 mi) distance
    | USGS | Details
  • 22 May 1999 10:08 UTC
    | M 6.1 |
    33 km (20.5 mi) depth
    |
    205 km (127 mi) distance
    | USGS | Strong mag. 6.1 earthquake - Vanuatu on Saturday, 22 May 1999
  • 25 Feb 1999 16:39 UTC
    | M 5.4 |
    33 km (20.5 mi) depth
    |
    34 km (21 mi) distance
    | USGS | Details
  • 23 Feb 1999 19:54 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    163 km (101 mi) distance
    | USGS | Details
  • 22 Feb 1999 01:00 UTC
    | M 6.4 |
    33 km (20.5 mi) depth
    |
    158 km (98 mi) distance
    | USGS | Strong mag. 6.4 earthquake - Southeast of the Loyalty Islands (Vanuatu) on Monday, 22 February 1999
  • 19 Jan 1999 12:01 UTC
    | M 5.4 |
    33 km (20.5 mi) depth
    |
    205 km (128 mi) distance
    | USGS | Details
  • 18 Jan 1999 16:24 UTC
    | M 5.7 |
    33 km (20.5 mi) depth
    |
    57 km (36 mi) distance
    | USGS | Details
  • 18 Jan 1999 00:33 UTC
    | M 5.5 |
    53 km (32.9 mi) depth
    |
    93 km (58 mi) distance
    | USGS | Details
  • 13 Jan 1999 20:12 UTC
    | M 5.8 |
    125.4 km (77.9 mi) depth
    |
    224 km (139 mi) distance
    | USGS | Details
  • 15 Nov 1998 13:30 UTC
    | M 5.2 |
    33 km (20.5 mi) depth
    |
    142 km (88 mi) distance
    | USGS | Details
  • Show all

Map of aftershocks

Significant earthquakes in the same area since 1900

Major mag. 7.5 earthquake - Southeast of the Loyalty Islands (New Caledonia) on Sunday, 4 January 1998

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