Very Strong Mag. 6.1 Earthquake - Indian Ocean on 8 May 1:21 am (GMT +10)

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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 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 & time	May 7, 2021 15:21:14 UTC
Local time at epicenter	8 May 1:21 am (GMT +10)
Status	Confirmed
Magnitude	6.1
Depth	10.0 km
Epicenter latitude / longitude	54.5°S / 144.42°E
Antipode	54.5°N / 35.58°W
Shaking intensity	Strong shaking
Felt	3 reports
Primary data source	EMSC (European-Mediterranean Seismological Centre)
Nearest volcano	###NEARESTVOLCANO2###
Nearby towns and cities
Weather at epicenter at time of quake	Broken Clouds 4°C (39 F), humidity: 93%, wind: 9 m/s (18 kts) from NW
Estimated seismic energy released	8.9 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.

Mag.	Depth	Location	Source
6.1	10 km	WEST OF MACQUARIE ISLAND	EMSC
6.0	10 km	West of Macquarie Island	GFZ
5.8	10 km	West of Macquarie Island	BMKG
5.2	10 km	Near Geelong	RENASS
6.0	10 km	West of Macquarie Island	USGS
6.1	31 km	West of Macquarie Island	GeoAu

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Seismograms

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

User reports for this quake (3)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.

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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

Aftershocks

[More info]

Recorded aftershocks, latest first (1 quake)

Date and time	Mag Depth	Location	Details
Jul 8, 2021 10:34 1 year 38 weeks ago	4.9 10 km	Indian Ocean	More

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