Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Mwp 5.8 on date 17-08-2022 and time 04:24:48 (UTC) in region Off east coast of Honshu, Japan [Sea: Japan]

A magnitude Mwp 5.8 earthquake occured in region: Off east coast of Honshu, Japan [Sea: Japan], on

  • 17-08-2022 04:24:48 (UTC)
  • 17-08-2022 06:24:48 (UTC +02:00) Italian time
  • 17-08-2022 13:24:48 (UTC +09:00) local time in the region of the earthquake (Asia/Tokyo)

and geographic coordinates (lat, lon) 33.3070, 141.8290 at 10 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		mb 5.3
Mwp 5.8
Mwpd 6.0 		2022-08-17
04:24:48		 33.307 141.829 10 2022-08-17
04:37:35		 Sala Sismica INGV-Roma 108636051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-17 04:24:48
Latitude 33.3070
Longitude 141.8290
Depth (km) 10 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 108636051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 18961
Semi-minor axis of confidence ellipse (meter) 15252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 15308.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130.639
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.22835
Epicentral distance of station closest to the epicenter (degree) 1.69689
Epicentral distance of station farthest from the epicenter (degree) 65.39062
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

Mwpd:6.0

Field Value
Value 6.0
Uncertainty 0.0
Num. used stations 4
Type of magnitude Mwpd
Reference to an origin 108636051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-08-17 04:37:35

Mwp:5.8

Field Value
Value 5.8
Uncertainty 0.2
Num. used stations 10
Type of magnitude Mwp
Reference to an origin 108636051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-08-17 04:37:35

mb:5.3

Field Value
Value 5.3
Uncertainty 0.2
Num. used stations 12
Type of magnitude mb
Reference to an origin 108636051
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2022-08-17 04:37:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AU.FORT.BHZ.00 2022-08-17T04:35:32.48 10.0 negative automatic P 193 7258.3566 3.16837 0.330014
AU.EIDS.BHZ. 2022-08-17T04:34:46.90 10.0 positive automatic P 170 6585.6522 -1.84502 0.421022
AU.WRKA.BHZ.00 2022-08-17T04:34:49.93 10.0 negative automatic P 194 6631.8726 -1.75828 0.415018
II.SIMI.BHZ.00 2022-08-17T04:34:36.77 10.0 positive automatic P 298 6393.6444 -0.104521 0.206046
CN.EAGLY.BHZ. 2022-08-17T04:34:32.20 10.0 negative automatic P 28 6264.0519 3.71225 0.433069
IU.COLA.BHZ.00 2022-08-17T04:33:59.77 10.0 positive automatic P 31 5763.0867 4.28639 0.554936
GE.GSI.BHZ. 2022-08-17T04:33:58.37 10.0 positive automatic P 242 5809.7178 -0.221056 0.515999
II.KDAK.BHZ.00 2022-08-17T04:33:38.77 10.0 positive automatic P 40 5500.2609 1.14829 0.574452
II.KURK.BHZ.00 2022-08-17T04:33:28.44 10.0 positive automatic P 311 5375.4081 -0.555977 0.608107
IU.MAKZ.BHZ.00 2022-08-17T04:33:14.67 10.0 negative automatic P 305 5167.5717 0.158258 0.611679
IU.CHTO.BHZ.00 2022-08-17T04:32:27.37 10.0 positive automatic P 260 4531.0866 -0.951684 0.469091
GE.SANI.BHZ. 2022-08-17T04:32:04.87 10.0 negative automatic P 206 4260.6351 -3.08204 0.778785
IU.ULN.BHZ.00 2022-08-17T04:30:54.97 10.0 positive automatic P 310 3307.8555 1.12018 0.43956
IU.YSS.BHZ.00 2022-08-17T04:28:00.45 10.0 negative automatic P 3 1517.2923 -0.0424129 0.888889
II.ERM.BHZ.00 2022-08-17T04:26:49.77 10.0 positive automatic P 6 973.5255 -3.66675 0.97561
JP.JTM.BHZ. 2022-08-17T04:26:36.65 10.0 positive automatic P 356 833.2659 0.530792 0.888889
JP.JMN.BHZ. 2022-08-17T04:26:25.70 10.0 positive automatic P 276 737.2398 1.38526 0.43956
G.INU.BHZ.00 2022-08-17T04:25:55.36 10.0 negative automatic P 299 494.8935 1.11603 0.930233
JP.JMM.BHZ. 2022-08-17T04:25:54.75 10.0 positive automatic P 350 514.9623 -1.97668 0.930233
IU.MAJO.BHZ.00 2022-08-17T04:25:53.97 10.0 positive automatic P 318 487.8228 0.551409 0.952381
JP.JGF.BHZ. 2022-08-17T04:25:53.85 10.0 positive automatic P 303 482.3394 1.08177 0.952381
JP.JHJ2.BHZ. 2022-08-17T04:25:15.45 10.0 positive automatic P 264 188.3559 -0.808894 0.909091
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download