INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.1 on date 12-11-2017 and time 23:24:05 (Italy) in region Off east coast of Honshu, Japan [Sea: Japan]

A magnitude Mwp 6.1 earthquake occured in region: Off east coast of Honshu, Japan [Sea: Japan], on

  • 12-11-2017 22:24:05 (UTC)
  • 12-11-2017 23:24:05 (UTC +01:00) Italian time
  • 13-11-2017 07:24:05 (UTC +09:00) local time in the region of the earthquake (Asia/Tokyo)

and geographic coordinates (lat, lon) 37.86, 145.18 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.

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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Date and Time (UTC) Latitude Longitude Magnitude Depth (km) Published time (UTC) Author Location ID
Rev 100 2017-11-12
22:24:05
37.86 145.18 mb 5.5
Mwp 6.1
Mwpd 6.5
10 2017-11-12
22:35:36
Sala Sismica INGV-Roma 51823881
Best location and best magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-11-12 22:24:05
Latitude 37.86
Longitude 145.18
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 51823881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 10426
Semi-minor axis of confidence ellipse (meter) 3019
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 8418.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179.41
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.65001
Epicentral distance of station closest to the epicenter (degree) 3.46724
Epicentral distance of station farthest from the epicenter (degree) 34.79177
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

Mwpd:6.5

Field Value
Value 6.5
Uncertainty 0
Num. used stations 2
Type of magnitude Mwpd
Reference to an origin 51823881
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-12 22:35:36

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwp
Reference to an origin 51823881
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-12 22:35:36

mb:5.5

Field Value
Value 5.5
Uncertainty 0.2
Num. used stations 16
Type of magnitude mb
Reference to an origin 51823881
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-11-12 22:35:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.TIXI.BHZ.00 2017-11-12T22:30:55.92 10.0 negative automatic P 351 34.7918 0.446133 0.776997
IU.BILL.BHZ.00 2017-11-12T22:30:35.52 10.0 positive automatic P 15 32.4193 0.65832 0.822214
IU.ULN.BHZ.00 2017-11-12T22:30:09.57 10.0 negative automatic P 302 29.3334 1.70901 0.869565
IU.YAK.BHZ.00 2017-11-12T22:29:37.72 10.0 negative automatic P 343 25.9908 0.0505123 0.888889
IU.TATO.BHZ.00 2017-11-12T22:29:19.62 10.0 positive automatic P 244 23.8599 1.33329 0
JP.YOJ.BHZ. 2017-11-12T22:29:10.35 10.0 negative automatic P 241 23.1206 -0.575286 0.930233
IU.MA2.BHZ.00 2017-11-12T22:29:00.82 10.0 positive automatic P 8 22.0072 1.66167 0.888889
JP.JCJ.BHZ. 2017-11-12T22:26:40.40 10.0 positive automatic P 194 11.0547 -2.49169 0.97561
JP.JOW.BHZ. 2017-11-12T22:28:16.60 10.0 positive automatic P 237 17.9931 1.65519 0.909091
JP.JTU.BHZ. 2017-11-12T22:27:11.80 10.0 positive automatic P 260 13.1494 0.279303 0.952381
JP.JNU.BHZ. 2017-11-12T22:27:03.95 10.0 positive automatic P 252 12.5551 0.464588 0.952381
JP.JMN.BHZ. 2017-11-12T22:26:29.60 10.0 positive automatic P 249 10.0469 0.437299 0.952381
II.ERM.BHZ.00 2017-11-12T22:25:09.97 10.0 positive automatic P 340 4.4353 -2.08197 0.952381
G.INU.BHZ.00 2017-11-12T22:25:48.46 10.0 positive automatic P 251 7.0063 1.07763 0.952381
JP.JSG.BHZ. 2017-11-12T22:25:42.40 10.0 positive automatic P 243 6.4754 2.30561 0.97561
JP.JKA.BHZ. 2017-11-12T22:25:39.20 10.0 positive automatic S 329 3.8222 -8.86868 0
JP.JHJ2.BHZ. 2017-11-12T22:25:38.70 10.0 positive automatic P 224 6.4483 -1.01678 0.930233
IU.MAJO.BHZ.00 2017-11-12T22:25:30.12 10.0 positive automatic P 259 5.7095 0.497374 0.952381
JP.JSD.BHZ. 2017-11-12T22:25:25.25 10.0 positive automatic P 274 5.4621 -0.928443 0.208333
JP.JTM.BHZ. 2017-11-12T22:25:08.70 10.0 positive automatic P 314 4.3265 -1.86948 0.909091
JP.JMM.BHZ. 2017-11-12T22:24:56.20 10.0 positive automatic P 272 3.4672 -2.5495 0.97561
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download