Earthquake with magnitude of Mwp 6.2 on date 11-04-2019 and time 10:18:20 (Italy) in region Off east coast of Honshu, Japan [Sea: Japan]

A magnitude Mwp 6.2 earthquake occured in region: Off east coast of Honshu, Japan [Sea: Japan], on

  • 11-04-2019 08:18:20 (UTC)
  • 11-04-2019 10:18:20 (UTC +02:00) Italian time
  • 11-04-2019 17:18:20 (UTC +09:00) local time in the region of the earthquake (Asia/Tokyo)

and geographic coordinates (lat, lon) 40.38, 143.53 at 20 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 Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 mb 5.5
Mwp 6.2

Mwpd 6.6
2019-04-11
08:18:20
40.38 143.53 20 2019-04-11
08:31:02
Sala Sismica INGV-Roma 67457161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-04-11 08:18:20
Latitude 40.38
Longitude 143.53
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 67457161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 5968
Semi-minor axis of confidence ellipse (meter) 425
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 4818.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186.716
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.32563
Epicentral distance of station closest to the epicenter (degree) 1.6639
Epicentral distance of station farthest from the epicenter (degree) 32.11058
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 20
Magnitudes information

Mwpd:6.6

Field Value
Value 6.6
Uncertainty 0.1
Num. used stations 2
Type of magnitude Mwpd
Reference to an origin 67457161
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-04-11 08:31:02

Mwp:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 15
Type of magnitude Mwp
Reference to an origin 67457161
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-04-11 08:31:02

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 14
Type of magnitude mb
Reference to an origin 67457161
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-04-11 08:31:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.TIXI.BHZ.00 2019-04-11T08:24:45.87 10.0 positive automatic P 351 32.1106 0.425642 0.828145
IU.BILL.BHZ.00 2019-04-11T08:24:31.37 10.0 positive automatic P 17 30.3429 1.45379 0.902006
IU.ULN.BHZ.00 2019-04-11T08:24:00.67 10.0 positive automatic P 298 26.9579 0.668802 0.952381
IU.TATO.BHZ.00 2019-04-11T08:23:31.62 10.0 positive automatic P 237 23.9855 -1.167 0.43956
IU.YAK.BHZ.00 2019-04-11T08:23:22.67 10.0 positive automatic P 343 23.2149 -2.68693 0.952381
IU.MA2.BHZ.00 2019-04-11T08:22:47.52 10.0 positive automatic P 11 19.728 -0.4428 0.43956
JP.JOW.BHZ. 2019-04-11T08:22:31.15 10.0 positive automatic P 228 18.514 -3.48982 0.43956
IU.PET.BHZ.00 2019-04-11T08:22:13.32 10.0 positive automatic P 34 16.2848 -2.21087 0
JP.JTU.BHZ. 2019-04-11T08:21:19.00 10.0 positive automatic P 247 12.6327 0.877935 0.43956
JP.JNU.BHZ. 2019-04-11T08:21:15.60 10.0 negative automatic P 238 12.4446 -0.0306654 0.930233
JP.JMN.BHZ. 2019-04-11T08:20:44.65 10.0 positive automatic P 232 10.1631 0.230968 0.43956
JP.JHJ2.BHZ. 2019-04-11T08:20:11.85 10.0 positive automatic P 203 7.8453 -0.705363 0.909091
G.INU.BHZ.00 2019-04-11T08:20:04.51 10.0 negative automatic P 228 7.1801 1.07314 0.909091
JP.JGF.BHZ. 2019-04-11T08:19:59.00 10.0 positive automatic P 228 6.8135 0.516699 0.833333
IU.YSS.BHZ.00 2019-04-11T08:19:56.30 10.0 positive automatic P 355 6.6068 0.732763 0.909091
IU.MAJO.BHZ.00 2019-04-11T08:19:43.77 10.0 positive automatic P 229 5.6612 1.14443 0.952381
JP.JSD.BHZ. 2019-04-11T08:19:29.90 10.0 positive automatic P 242 4.7063 0.441489 0.930233
JP.JMM.BHZ. 2019-04-11T08:19:09.20 10.0 positive automatic P 221 3.2873 -0.747252 0.952381
JP.JTM.BHZ. 2019-04-11T08:18:50.65 10.0 positive automatic P 283 1.9195 -0.486432 0.952381
II.ERM.BHZ.00 2019-04-11T08:18:47.92 10.0 positive automatic P 350 1.6639 0.312541 0.909091
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