INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.0 on date 31-10-2017 and time 12:31:41 (Italy) in region Seram, Indonesia [Sea: Indonesia]

A magnitude Mwp 6.0 earthquake occured in region: Seram, Indonesia [Sea: Indonesia], on

  • 31-10-2017 11:31:41 (UTC)
  • 31-10-2017 12:31:41 (UTC +01:00) Italian time
  • 31-10-2017 20:31:41 (UTC +09:00) local time in the region of the earthquake (Asia/Dili)

and geographic coordinates (lat, lon) -3.8, 127.78 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 5.4
Mwp 6.0

Mwpd 6.2
2017-10-31
11:31:41
-3.8 127.78 20 2017-10-31
11:49:12
Sala Sismica INGV-Roma 51477641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-10-31 11:31:41
Latitude -3.80
Longitude 127.78
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 51477641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6064
Semi-minor axis of confidence ellipse (meter) 1015
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 30
Circular confidence region, given by single value of horizontal uncertainty (meter) 4951.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63.9294
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.60213
Epicentral distance of station closest to the epicenter (degree) 2.23832
Epicentral distance of station farthest from the epicenter (degree) 56.24062
Number of stations at which the event was observed 50
Number of stations from which data was used for origin computation 50
Magnitudes information

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.2
Num. used stations 14
Type of magnitude Mwpd
Reference to an origin 51477641
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-10-31 11:49:12

Mwp:6

Field Value
Value 6
Uncertainty 0.2
Num. used stations 30
Type of magnitude Mwp
Reference to an origin 51477641
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-10-31 11:49:12

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 38
Type of magnitude mb
Reference to an origin 51477641
Agency INGV
Autore Auto added
Time of creation (UTC) 2017-10-31 11:49:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.SNZO.BHZ.00 2017-10-31T11:41:19.02 10.0 positive automatic P 139 56.2406 -0.738645 0.466924
IU.ULN.BHZ.00 2017-10-31T11:41:07.87 10.0 positive automatic P 343 54.766 -1.54198 0.437579
JP.JOW.BHZ. 2017-10-31T11:37:54.00 10.0 positive automatic P 1 30.6422 0.136902 0.876061
GE.GSI.BHZ. 2017-10-31T11:37:52.47 10.0 positive automatic P 279 30.6138 -1.12292 0.89656
IU.NWAO.BHZ.00 2017-10-31T11:37:53.37 10.0 positive automatic P 197 30.7449 -1.42954 0.936419
II.MSVF.BHZ.00 2017-10-31T11:40:44.57 10.0 positive automatic P 110 51.1252 2.16334 0
IO.EVN.BHZ. 2017-10-31T11:40:38.80 10.0 positive automatic P 311 50.6236 -0.558302 0.556469
GE.MALK.BHZ. 2017-10-31T11:40:22.97 10.0 negative automatic P 285 48.6576 -0.561694 0.562862
IN.SHL.HHZ. 2017-10-31T11:39:58.55 10.0 positive automatic P 312 45.5491 -0.706024 0.644114
JP.JMM.BHZ. 2017-10-31T11:39:41.35 10.0 negative automatic P 15 43.385 -0.632869 0.68344
G.DZM.BHZ.00 2017-10-31T11:39:28.65 10.0 positive automatic P 119 41.6734 0.450497 0.341427
IU.MAJO.BHZ.00 2017-10-31T11:39:24.82 10.0 negative automatic P 13 41.5051 -1.91895 0.685887
G.INU.BHZ.00 2017-10-31T11:39:13.86 10.0 positive automatic P 12 40.1028 -1.26179 0.666021
ND.KOUNC.BHZ.00 2017-10-31T11:39:08.54 10.0 positive automatic P 118 39.2602 0.437801 0.727007
AU.MILA.BHZ. 2017-10-31T11:39:03.40 10.0 negative automatic P 152 38.6002 0.701261 0.774527
JP.JTU.BHZ. 2017-10-31T11:38:59.35 10.0 negative automatic P 2 38.36 -1.20156 0.743831
JP.JMN.BHZ. 2017-10-31T11:38:56.55 10.0 positive automatic P 8 37.973 -0.824015 0.751122
AU.TOO.BHZ. 2017-10-31T11:38:53.47 10.0 positive automatic P 157 37.455 0.46247 0.778634
G.CAN.BHZ.00 2017-10-31T11:38:50.60 10.0 positive automatic P 151 37.1238 0.391803 0.785093
JP.JNU.BHZ. 2017-10-31T11:38:48.05 10.0 negative automatic P 4 37.0436 -1.44921 0.805389
IU.CHTO.BHZ.00 2017-10-31T11:38:43.22 10.0 positive automatic P 310 36.2926 0.13565 0.81084
AU.ARMA.BHZ. 2017-10-31T11:38:31.65 10.0 negative automatic P 142 34.8573 0.769332 0.82999
AU.EIDS.BHZ. 2017-10-31T11:37:57.60 10.0 positive automatic P 136 31.0777 -0.109727 0.92925
AU.MORW.BHZ. 2017-10-31T11:37:26.57 10.0 negative automatic P 203 27.6102 -0.383963 0.952381
AU.QLP.BHZ. 2017-10-31T11:37:26.72 10.0 positive automatic P 147 27.6921 -0.948726 0.784314
AU.FORT.BHZ. 2017-10-31T11:37:20.07 10.0 positive automatic P 179 26.9752 -1.15761 0.97561
RM.DLV.BHZ. 2017-10-31T11:37:02.62 10.0 negative automatic P 310 24.8256 0.678616 0.930233
IU.CTAO.BHZ.00 2017-10-31T11:36:57.22 10.0 positive automatic P 134 24.2739 0.447318 0.909091
AU.GIRL.BHZ. 2017-10-31T11:36:43.52 10.0 negative automatic P 214 22.9533 -0.404749 0.941176
AU.XMI.BHZ. 2017-10-31T11:36:40.57 10.0 positive automatic P 252 22.8899 -2.70716 0.930233
AU.WRKA.BHZ. 2017-10-31T11:36:25.52 10.0 positive automatic P 179 21.2385 -0.193002 0.952381
IU.PMG.BHZ.00 2017-10-31T11:36:14.12 10.0 positive automatic P 107 20.0406 1.47245 0.909091
AU.MANU.BHZ. 2017-10-31T11:36:11.40 10.0 positive automatic P 85 19.639 3.11658 0.465116
IU.MBWA.BHZ.00 2017-10-31T11:36:00.70 10.0 positive automatic P 204 19.0358 -0.98935 0.888889
AU.COEN.BHZ. 2017-10-31T11:35:51.90 10.0 negative automatic P 125 18.2693 -1.31619 0.816327
GE.SMRI.BHZ. 2017-10-31T11:35:46.82 10.0 positive automatic P 259 17.5592 2.36389 0.816327
II.WRAB.BHZ.00 2017-10-31T11:35:37.57 10.0 positive automatic P 159 17.3581 -4.41674 0.909091
GE.JAGI.BHZ. 2017-10-31T11:35:05.62 10.0 negative automatic P 250 14.3251 3.0577 0.930233
GE.GENI.BHZ. 2017-10-31T11:34:37.07 10.0 positive automatic P 85 12.4279 0.432126 0.43956
AU.KDU.BHZ. 2017-10-31T11:34:02.42 10.0 positive automatic P 153 10.0216 -1.29176 0.952381
AU.MTN.BHZ. 2017-10-31T11:33:58.30 10.0 positive automatic P 160 9.6279 -0.0390175 0.97561
II.KAPI.BHZ.00 2017-10-31T11:33:38.92 10.0 positive automatic P 261 8.0939 1.59403 0.888889
GE.MMRI.BHZ. 2017-10-31T11:33:28.42 10.0 negative automatic P 228 7.3259 1.6619 0.952381
GE.SOEI.BHZ. 2017-10-31T11:33:23.57 10.0 negative automatic P 210 6.8966 2.54837 0.784314
GE.LUWI.BHZ. 2017-10-31T11:33:05.47 10.0 positive automatic P 299 5.7139 0.870528 0.47619
GE.SAUI.BHZ. 2017-10-31T11:33:04.22 10.0 positive automatic P 140 5.4509 3.21757 0.888889
GE.FAKI.BHZ. 2017-10-31T11:32:50.32 10.0 positive automatic P 79 4.5489 1.7059 0.930233
GE.TNTI.BHZ. 2017-10-31T11:32:50.62 10.0 positive automatic P 355 4.594 1.39952 0.888889
GE.SANI.BHZ. 2017-10-31T11:32:19.57 10.0 positive automatic P 314 2.5051 -0.920233 0.952381
GE.BNDI.BHZ. 2017-10-31T11:32:16.52 10.0 positive automatic P 109 2.2383 -0.302031 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