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Strong mag. 5.8 earthquake - Russia: Kuril Islands on Tuesday, 13 July 2021 at 00:30 (GMT) - information

Strong mag. 5.8 earthquake - North Pacific Ocean, Russia, on 13 Jul 10:30 am (GMT +10)

Strong mag. 5.8 earthquake - North Pacific Ocean, Russia, on 13 Jul 10:30 am (GMT +10) Strong mag. 5.8 earthquake - North Pacific Ocean, Russia, on 13 Jul 10:30 am (GMT +10)

Strong magnitude 5.8 earthquake at 41 km depth

13 Jul 00:39 UTC: First to report: GFZ after 9 minutes.
13 Jul 00:41: Magnitude recalculated from 6.0 to 5.9. Epicenter location corrected by 13 km (7.9 mi) towards NNW.
13 Jul 07:08: Magnitude recalculated from 5.9 to 5.7. Hypocenter depth recalculated from 10.0 to 35.0 km (from 6.2 to 22 mi). Epicenter location corrected by 17 km (10.6 mi) towards NW.
13 Jul 08:38: Magnitude recalculated from 5.7 to 5.8. Hypocenter depth recalculated from 35.0 to 41.0 km (from 22 to 25 mi). Epicenter location corrected by 1.5 km (1 mi) towards W.

Earthquake details

Date & timeJul 13, 2021 00:30:17 UTC
Local time at epicenter13 Jul 10:30 am (GMT +10)
StatusConfirmed
Magnitude5.8
Depth41.0 km
Epicenter latitude / longitude46.13°N / 151.65°E (North Pacific Ocean, Russia)
Antipode46.13°S / 28.35°W
Shaking intensityLight shaking
Felt1 report
Primary data sourceGFZ (German Research Centre for Geosciences)
Nearest volcanounnamed submarine (65 km / 40 mi)
Nearby towns and cities310 km (193 mi) ENE of Kuril'sk (pop: 1,720) | Show on map | Quakes nearby
466 km (290 mi) NE of Shikotan (pop: 2,100) | Show on map | Quakes nearby
465 km (289 mi) NE of Shikotan Island (pop: 2,100) | Show on map | Quakes nearby
Weather at epicenter at time of quakeClear Sky 11.3°C (52 F), humidity: 90%, wind: 3 m/s (6 kts) from S
Estimated seismic energy released3.2 x 1013 joules (8.78 gigawatt hours, equivalent to 7558 tons of TNT or 0.5 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.DepthLocationSource
5.841 kmRussia: Kuril IslandsGFZ
5.710 kmRussia: KURIL ISLANDSEMSC
5.910 kmRussia: Kuril IslandsBMKG
5.640 kmRussia: Kuril IslandsUSGS
5.722 kmRussia: Kuril IslandsGeoAu
5.710 kmRussia: Near KushiroRENASS

Seismograms

Seismic station: Yuzhno Sakhalinsk, Russia (YSS/IU network) | Distance from quake: 686 km / 426 mi | Show on map | Station Info
Seismic station Yuzhno Sakhalinsk, Russia: 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 (1)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Tokyo (1535.8 km SW of epicenter) [Map] / Light shaking (MMI IV) / horizontal (sideways) swinging / 15-20 s : A small jolt, then back and forth horizontal movement for a few seconds. | 2 users found this interesting.  

Aftershocks

[More info]

Recorded aftershocks, latest first (2 quakes)

Date and timeMag
Depth
LocationDetails
Jul 13, 2021 10:10
1 year 21 weeks ago
3.7

40 km
North Pacific Ocean, 299 km E of Kuril'sk, Sakhalin Oblast, RussiaMore
Jul 13, 2021 04:28
1 year 21 weeks ago
4.4

69 km
North Pacific Ocean, RussiaMore

Earlier earthquakes in the same area

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