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Major magnitude 6.7 earthquake - Southern East Pacific Rise on Wednesday, 19 May 2021 at 00:42 (GMT) - information

Major magnitude 6.7 earthquake - South Pacific Ocean on 18 May 5:42 pm (GMT -7)

Major magnitude 6.7 earthquake - South Pacific Ocean on 18 May 5:42 pm (GMT -7) Major magnitude 6.7 earthquake - South Pacific Ocean on 18 May 5:42 pm (GMT -7)

Major magnitude 6.7 earthquake at 10 km depth

19 May 00:53 UTC: First to report: GFZ after 11 minutes.
19 May 04:56: Magnitude recalculated from 6.1 to 6.7. Epicenter location corrected by 22 km (14 mi) towards WSW.
19 May 07:44: Epicenter location corrected by 3 km (1.9 mi) towards WSW.

Earthquake details

Date & timeMay 19, 2021 00:42:18 UTC
Local time at epicenter18 May 5:42 pm (GMT -7)
Depth10.0 km
Epicenter latitude / longitude33.25°S / 109.6°W
Antipode33.25°N / 70.4°E
Shaking intensityVery strong shaking near epicenter
Felt2 reports
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearby towns and cities
Weather at epicenter at time of quakeOvercast Clouds 18.8°C (66 F), humidity: 67%, wind: 7 m/s (14 kts) from N
Estimated seismic energy released7.1 x 1014 joules (197 gigawatt hours, equivalent to 1.7 x 105 tons of TNT or 10.6 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.
6.710 kmSouthern East Pacific RiseGFZ
5.410 kmNear OsornoRENASS
6.710 kmSouthern East Pacific RiseUSGS
6.710 kmSouthern East Pacific RiseGeoAu
6.215 km3573 Km Al O De Los VilosGUG (U. Chile)


Seismic station: Pitcairn Island, South Pacific (PTCN/IU network) | Distance from quake: 2183 km / 1356 mi | Show on map | Station Info
Seismic station Pitcairn Island, South Pacific: 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. Source: IRIS Buffer of Uniform Data (BUD) webtool
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User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
Flag as inappropriate.
Mark as helpful or interesting.
Send your own user report!
Suva / Weak shaking (MMI III) / vertical swinging (up and down) : Moderate | 3 users found this interesting.  
The Netherlands / not felt : I didn’t feel anything, but I live in Europe, so it isn’t nearby  
Plátanos (4690.6 km ESE of epicenter) [Map] / Light shaking (MMI IV) / vertical swinging (up and down) / 15-20 s
One Tree Point, bream bay, Whangarei / not felt


[More info]

Recorded aftershocks, latest first (2 quakes)

Date and timeMag
Jun 28, 2021 04:21
1 year 24 weeks ago

10 km
South Pacific OceanMore
Jun 21, 2021 15:15
1 year 25 weeks ago

10 km
South Pacific OceanMore

Earlier earthquakes in the same area

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