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Strong mag. 5.4 earthquake - East China Sea, 134 km northwest of Naha, Okinawa, Japan, on Friday, May 6, 2022 at 10:21 pm (GMT +9) -

Strong mag. 5.4 earthquake - East China Sea, 134 km northwest of Naha, Okinawa, Japan, on Friday, May 6, 2022 at 10:21 pm (GMT +9) Strong mag. 5.4 earthquake - East China Sea, 134 km northwest of Naha, Okinawa, Japan, on Friday, May 6, 2022 at 10:21 pm (GMT +9)

Strong magnitude 5.4 earthquake at 10 km depth

6 May 13:23 UTC: First to report: VolcanoDiscovery after 2 minutes.
6 May 13:29: Now using data updates from GFZ
6 May 13:42: Now using data updates from USGS
6 May 14:19: Magnitude recalculated from 5.5 to 5.4. Epicenter location corrected by 5 km (3.1 mi) towards E.

Earthquake details

Date & timeMay 6, 2022 13:21:07 UTC -
Local time at epicenterFriday, May 6, 2022 at 10:21 pm (GMT +9)
StatusConfirmed
Magnitude5.4
Depth10.0 km
Epicenter latitude / longitude26.8222°N / 126.5172°E (East China Sea, Japan)
Antipode26.822°S / 53.483°W
Shaking intensityLight shaking
Felt9 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoIo-Torishima (205 km / 127 mi)
Nearby towns and cities134 km (83 mi) WNW of Naha (pop: 300,800) | Show on map | Quakes nearby
136 km (84 mi) WNW of Tomigusuku (pop: 55,700) | Show on map | Quakes nearby
137 km (85 mi) WNW of Ishikawa (Uruma) (pop: 22,400) | Show on map | Quakes nearby
137 km (85 mi) WNW of Chatan (Nakagami District) (pop: 27,800) | Show on map | Quakes nearby
138 km (86 mi) NW of Itoman (pop: 57,200) | Show on map | Quakes nearby
139 km (86 mi) WNW of Chinon (pop: 91,800) | Show on map | Quakes nearby
139 km (86 mi) WNW of Okinawa (pop: 125,500) | Show on map | Quakes nearby
144 km (89 mi) WNW of Gushikawa (pop: 65,300) | Show on map | Quakes nearby
146 km (90 mi) WNW of Katsuren-haebaru (Uruma) (pop: 34,200) | Show on map | Quakes nearby
148 km (92 mi) W of Naga (pop: 59,600) | Show on map | Quakes nearby
127 km (79 mi) W of Iejima Island (pop: 4,610) | Show on map | Quakes nearby
148 km (92 mi) WNW of Okinawa Island (pop: 1,301,000) | Show on map | Quakes nearby
441 km (274 mi) NE of Kumi Island (pop: 1,680) | Show on map | Quakes nearby
Weather at epicenter at time of quakeOvercast Clouds 24.1°C (75 F), humidity: 90%, wind: 6 m/s (11 kts) from ENE
Estimated seismic energy released7.9 x 1012 joules (2.21 gigawatt hours, equivalent to 1898 tons of TNT or 0.1 atomic bombs!) | about seismic energy
Show interactive Map
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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
5.410 km134 Km WNW of Naha, JapanUSGS
5.510 kmRYUKYU ISLANDS, JAPANEMSC
5.410 kmRyukyu Islands, JapanRaspberryShake
5.210 kmJapan: Near TaipeiRENASS
5.310 kmRyukyu Islands, JapanGFZ
5.438 kmRyukyu Islands, JapanGeoAu

Seismograms

Seismic station: Taipei, Taiwan (TATO/IU network) | Distance from quake: 543 km / 337 mi | Show on map | Station Info
Seismic station Taipei, Taiwan: 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
Show more

User reports for this quake (9)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Okinawa (139.4 km ESE of epicenter) [Map] / Very weak shaking (MMI II) : Sitting, felt seat shaking | One user found this interesting.  
Chatan (135.2 km ESE of epicenter) [Map] / Light shaking (MMI IV)
Chatan (135.2 km ESE of epicenter) [Map] / Light shaking (MMI IV)
Okinawa (139.4 km ESE of epicenter) [Map] / Weak shaking (MMI III) / horizontal (sideways) swinging / 20-30 s
Kadena Air Base Okinawa / Light shaking (MMI IV) / horizontal (sideways) swinging / 2-5 s
Chatan Okinawa japan / Light shaking (MMI IV) / horizontal (sideways) swinging / 20-30 s
Ginowan, Okinawa / Weak shaking (MMI III) / horizontal (sideways) swinging / 15-20 s
Yamazato / Light shaking (MMI IV) / horizontal (sideways) swinging / 30-60 s
Yomitan / Weak shaking (MMI III) / horizontal (sideways) swinging / 5-10 s

Aftershocks

[More info]

Recorded aftershocks, latest first (14 quakes)

Date and timeMag
Depth
LocationDetails
Jun 21, 2022 16:14
14 weeks ago
4.5

10 km
East China Sea, 139 km NW of Naha, Okinawa, JapanMore
Jun 21, 2022 14:53
14 weeks ago
4.8

10 km
East China Sea, 146 km NW of Naha, Okinawa, JapanMore
Jun 21, 2022 11:23
14 weeks ago
4.6

10 km
East China Sea, 134 km NW of Naha, Okinawa, JapanMore
Jun 19, 2022 18:24
14 weeks ago
4.3

10 km
East China Sea, 132 km W of Naha, Okinawa, JapanMore
Jun 19, 2022 10:07
14 weeks ago
5.1

10 km
East China Sea, 134 km NW of Naha, Okinawa, JapanMore
Jun 19, 2022 09:55
14 weeks ago - felt
5.5

10 km
East China Sea, 127 km NW of Naha, Okinawa, JapanMore
Jun 3, 2022 18:29
16 weeks ago
3.7

20 km
East China Sea, 140 km NW of Naha, Okinawa, JapanMore
Jun 3, 2022 07:09
16 weeks ago
4.0

20 km
East China Sea, 143 km NW of Naha, Okinawa, JapanMore
Jun 3, 2022 07:03
16 weeks ago - felt
5.6

10 km
East China Sea, 142 km NW of Naha, Okinawa, JapanMore
Jun 3, 2022 07:00
16 weeks ago
4.1

20 km
East China Sea, 143 km NW of Naha, Okinawa, JapanMore
Jun 1, 2022 04:10
17 weeks ago
3.7

10 km
East China Sea, 143 km NW of Naha, Okinawa, JapanMore
Jun 1, 2022 00:50
17 weeks ago
4.5

10 km
East China Sea, 144 km NW of Naha, Okinawa, JapanMore
May 10, 2022 17:39
20 weeks ago
4.5

24 km
East China Sea, 138 km NW of Naha, Okinawa, JapanMore
May 7, 2022 11:53
20 weeks ago - felt
5.5

10 km
East China Sea, 137 km NW of Naha, Okinawa, JapanMore

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