Earthquake with magnitude of mb 5.6 on date 17-01-2010 and time 07:04:37 (Italy) in region Off east coast of Honshu, Japan [Sea: Japan]

A magnitude mb 5.6 earthquake occured in region: Off east coast of Honshu, Japan [Sea: Japan], on

  • 17-01-2010 06:04:37 (UTC)
  • 17-01-2010 07:04:37 (UTC +01:00) Italian time
  • 17-01-2010 15:04:37 (UTC +09:00) local time in the region of the earthquake (Asia/Tokyo)

and geographic coordinates (lat, lon) 38, 143.6 at 10 km depth.

The earthquake was located by: CSEM.

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
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 ( 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
mb 5.6 2010-01-17
38 143.6 10 2013-01-05
CSEM 1007099
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2010-01-17 06:04:37
Latitude 38.0000
Longitude 143.6000
Depth (km) 10 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> CSEM
Event type earthquake
Origin ID 1007099


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


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree)
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec)
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 12
Magnitude information


Field Value
Value 5.6
Num. used stations
Type of magnitude mb
Reference to an origin 1007099
Agency INGV
Autore CSEM
Time of creation (UTC) 2013-01-05 19:18:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSC.EHZ. 2010-01-17T06:17:30.96 0.1 undecidable manual P 0 0 0
IV.PTQR.SHZ. 2010-01-17T06:17:29.74 0.1 undecidable manual P 0 0 0
IV.SMA1.EHZ. 2010-01-17T06:17:28.56 0.1 undecidable manual P 0 0 0
IV.CAFI.HHZ. 2010-01-17T06:17:27.89 0.1 undecidable manual P 0 0 0
IV.NRCA.SHZ. 2010-01-17T06:17:27.64 0.1 undecidable manual P 0 0 0
IV.VMG.SHZ. 2010-01-17T06:17:27.78 0.1 undecidable manual P 0 0 0
IV.CESI.HHZ. 2010-01-17T06:17:27.06 0.1 undecidable manual P 0 0 0
IV.SEI.SHZ. 2010-01-17T06:17:27.69 0.1 undecidable manual P 0 0 0
IV.FDMO.HHZ. 2010-01-17T06:17:26.78 0.1 undecidable manual P 0 0 0
SI.MOSI.BHE. 2010-01-17T06:17:18.41 0.1 undecidable manual P 0 0 0
SI.ABSI.BHZ. 2010-01-17T06:17:15.46 0.1 undecidable manual P 0 0 0
CH.DAVOX.HHZ. 2010-01-17T06:17:14.51 10.0 undecidable manual P 0 0 0
NI.ACOM.HHZ. 2010-01-17T06:17:11.39 0.1 undecidable manual P 0 0 0
IV.ORI.HHN. 2010-01-17T06:17:04.51 10.0 undecidable manual P 0 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0 4.0E-5 1.74 AML other m 2010-01-17T06:17:26.78
IV.FDMO.HHE. ML:0 6.0E-5 5.16 AML other m 2010-01-17T06:17:26.78
IV.CESI.HHN. ML:0 2.5E-5 2.36 AML other m 2010-01-17T06:17:27.06
IV.CESI.HHE. ML:0 5.0E-6 2.46 AML other m 2010-01-17T06:17:27.06
IV.NRCA.SHZ. Md:0 97 END duration s
IV.SEI.SHZ. Md:0 80.1 END duration s
IV.VMG.SHZ. Md:0 46 END duration s
IV.SMA1.EHN. ML:0 6.0E-5 1.52 AML other m 2010-01-17T06:17:28.56
IV.SMA1.EHE. ML:0 5.0E-5 1.34 AML other m 2010-01-17T06:17:28.56
IV.ORI.HHN. Md:0 24 END duration s
NI.ACOM.HHZ. Md:0 50.4 END duration s
CH.DAVOX.HHZ. Md:0 30 END duration s
SI.ABSI.BHZ. Md:0 36.1 END duration s
SI.MOSI.BHE. Md:0 72.2 END duration s
IV.FDMO.HHZ. Md:0 13 END duration s
IV.CESI.HHZ. Md:0 10 END duration s
IV.CAFI.HHZ. Md:0 16.7 END duration s
IV.SMA1.EHZ. Md:0 15.1 END duration s
IV.PTQR.SHZ. Md:0 64.1 END duration s
IV.MSC.EHZ. Md:0 12.3 END duration s
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download