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Very strong mag. 6.1 earthquake - WEST OF MACQUARIE ISLAND on Friday, 7 May 2021 at 15:21 (GMT) - information

Very strong mag. 6.1 earthquake - Indian Ocean on 8 May 1:21 am (GMT +10)

Very strong mag. 6.1 earthquake - Indian Ocean on 8 May 1:21 am (GMT +10) Very strong mag. 6.1 earthquake - Indian Ocean on 8 May 1:21 am (GMT +10)

Very strong magnitude 6.1 earthquake at 10 km depth

7 May 15:32 UTC: First to report: EMSC after 11 minutes.
7 May 15:36: Hypocenter depth recalculated from 40.0 to 49.0 km (from 25 to 30 mi). Epicenter location corrected by 2.3 km (1.4 mi) towards NNE.
... [show all] ...
7 May 16:51: Magnitude recalculated from 6.0 to 6.1. Hypocenter depth recalculated from 23.0 to 10.0 km (from 14.3 to 6.2 mi). Epicenter location corrected by 21 km (13 mi) towards SE.

Earthquake details

Date & timeMay 7, 2021 15:21:14 UTC
Local time at epicenter8 May 1:21 am (GMT +10)
Depth10.0 km
Epicenter latitude / longitude54.5°S / 144.42°E
Antipode54.5°N / 35.58°W
Shaking intensityStrong shaking
Felt3 reports
Primary data sourceEMSC (European-Mediterranean Seismological Centre)
Nearby towns and cities
Weather at epicenter at time of quakeBroken Clouds 4°C (39 F), humidity: 93%, wind: 9 m/s (18 kts) from NW
Estimated seismic energy released8.9 x 1013 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!) | about seismic energy
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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.
6.010 kmWest of Macquarie IslandGFZ
5.810 kmWest of Macquarie IslandBMKG
5.210 kmNear GeelongRENASS
6.010 kmWest of Macquarie IslandUSGS
6.131 kmWest of Macquarie IslandGeoAu


Seismic station: Tegucigalpa, Honduras (TGUH/CU network) | Distance from quake: 13694 km / 8509 mi | Show on map | Station Info
Seismic station Tegucigalpa, Honduras: vertical movement plot around time of quake (source: IRIS/BUD)
Seismogram (vertical component) around time of quake. Thin dotted red line indicates time of quake. Seismic waves arrive some time later, depending on distance. Bandpass filter applied: 0.02-2.0 Hz. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Adelaide, South Australia (2236.4 km NNW of epicenter) [Map] / Light shaking (MMI IV) / rattling, vibrating / 10-15 s
Maryborough Queensland / Weak shaking (MMI III) / complex motion difficult to describe
New Zeland / Very strong shaking (MMI VII) / rattling, vibrating / 1-2 minutes


[More info]

Recorded aftershocks, latest first (1 quake)

Date and timeMag
Jul 8, 2021 10:34
1 year 38 weeks ago

10 km
Indian OceanMore

Earlier earthquakes in the same area

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