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Light mag. 4.5 earthquake - East China Sea, 124 km north of Naha, Okinawa, Japan, on Wednesday, Mar 3, 2021 at 8:42 am (GMT +9)

Light mag. 4.5 earthquake - East China Sea, 124 km north of Naha, Okinawa, Japan, on Wednesday, Mar 3, 2021 at 8:42 am (GMT +9) Light mag. 4.5 earthquake - East China Sea, 124 km north of Naha, Okinawa, Japan, on Wednesday, Mar 3, 2021 at 8:42 am (GMT +9)

Light magnitude 4.5 earthquake at 111 km depth

3 Mar 00:28 UTC: First to report: USGS after 46 minutes.
8 Mar 03:48: Hypocenter depth recalculated from 109.4 to 111.1 km (from 68 to 69 mi). Epicenter location corrected by 2.1 km (1.3 mi) towards WSW.

Earthquake details

Date & timeMar 2, 2021 23:42:18 UTC
Local time at epicenterWednesday, Mar 3, 2021 at 8:42 am (GMT +9)
StatusConfirmed
Magnitude4.5
Depth111.1 km
Epicenter latitude / longitude27.2717°N / 127.2938°E (East China Sea, Japan)
Antipode27.272°S / 52.706°W
Shaking intensityWeak shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoIo-Torishima (112 km / 70 mi)
Nearby towns and cities100 km (62 mi) NW of Naga (pop: 59,600) | Show on map | Quakes nearby
108 km (67 mi) NNW of Ishikawa (Uruma) (pop: 22,400) | Show on map | Quakes nearby
116 km (72 mi) NNW of Okinawa (pop: 125,500) | Show on map | Quakes nearby
116 km (72 mi) NNW of Gushikawa (pop: 65,300) | Show on map | Quakes nearby
117 km (73 mi) NNW of Chatan (Nakagami District) (pop: 27,800) | Show on map | Quakes nearby
119 km (74 mi) NNW of Katsuren-haebaru (Uruma) (pop: 34,200) | Show on map | Quakes nearby
121 km (75 mi) NNW of Chinon (pop: 91,800) | Show on map | Quakes nearby
124 km (77 mi) NNW of Naha (pop: 300,800) | Show on map | Quakes nearby
127 km (79 mi) NNW of Tomigusuku (pop: 55,700) | Show on map | Quakes nearby
133 km (82 mi) NNW of Itoman (pop: 57,200) | Show on map | Quakes nearby
78 km (49 mi) NW of Iejima Island (pop: 4,610) | Show on map | Quakes nearby
105 km (66 mi) NW of Okinawa Island (pop: 1,301,000) | Show on map | Quakes nearby
Weather at epicenter at time of quakeBroken Clouds 16.1°C (61 F), humidity: 72%, wind: 10 m/s (19 kts) from NE
Estimated seismic energy released3.5 x 1011 joules (98.6 megawatt hours, equivalent to 84.8 tons of TNT) | 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
4.5111 km99 Km NW of Nago, JapanUSGS
4.5109 kmRYUKYU ISLANDS, JAPANEMSC

Seismograms

Seismic station: Taipei, Taiwan (TATO/IU network) | Distance from quake: 633 km / 393 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
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User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.

Earlier earthquakes in the same area

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