INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.1 on date 13-06-2018 and time 01:08:31 (Italy) in region Southern Sumatera, Indonesia [Sea: Indonesia]

A magnitude Mwp 6.1 earthquake occured in region: Southern Sumatera, Indonesia [Sea: Indonesia], on

  • 12-06-2018 23:08:31 (UTC)
  • 13-06-2018 01:08:31 (UTC +02:00) Italian time
  • 13-06-2018 07:08:31 (UTC +08:00) local time in the region of the earthquake (Asia/Kuala_Lumpur)

and geographic coordinates (lat, lon) -1.98, 98.75 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 5.3
Mwp 6.1

Mwpd 6.4
2018-06-12
23:08:31
-1.98 98.75 20 2018-06-12
23:29:56
Sala Sismica INGV-Roma 57773511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-06-12 23:08:31
Latitude -1.98
Longitude 98.75
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 57773511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 17278
Semi-minor axis of confidence ellipse (meter) 4870
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 14425.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155.083
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.75092
Epicentral distance of station closest to the epicenter (degree) 3.24358
Epicentral distance of station farthest from the epicenter (degree) 40.49412
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.2
Num. used stations 17
Type of magnitude Mwp
Reference to an origin 57773511
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-06-12 23:29:56

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.2
Num. used stations 9
Type of magnitude Mwpd
Reference to an origin 57773511
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-06-12 23:29:56

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 20
Type of magnitude mb
Reference to an origin 57773511
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-06-12 23:29:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
JP.JOW.BHZ. 2018-06-12T23:16:08.35 10.0 positive automatic P 43 40.4941 0.644897 0
AU.FORT.BHZ. 2018-06-12T23:16:04.60 10.0 negative automatic P 139 39.9668 1.2744 0.74793
AU.WRKA.BHZ. 2018-06-12T23:15:36.65 10.0 positive automatic P 132 36.6421 1.22511 0.833288
AU.KDU.BHZ. 2018-06-12T23:15:20.07 10.0 positive automatic P 109 35.0582 -1.67335 0.780578
AU.MTN.BHZ. 2018-06-12T23:15:09.87 10.0 positive automatic P 110 33.8411 -1.35529 0.76995
GE.FAKI.BHZ. 2018-06-12T23:15:07.72 10.0 positive automatic P 92 33.475 -0.319869 0.838486
IO.EVN.BHZ. 2018-06-12T23:14:56.50 10.0 positive automatic P 340 32.0588 0.015535 0
AU.FITZ.BHZ. 2018-06-12T23:14:45.88 10.0 positive automatic P 123 30.9083 0.359654 0.9112
IN.SHL.HHZ. 2018-06-12T23:14:22.45 10.0 positive automatic P 347 28.3394 -0.282046 0.943396
GE.SOEI.BHZ. 2018-06-12T23:14:03.87 10.0 positive automatic P 108 26.5226 -2.75629 0.727273
GE.LUWI.BHZ. 2018-06-12T23:13:43.77 10.0 positive automatic P 88 24.0261 -0.000196719 0.869565
RM.SLV.BHZ. 2018-06-12T23:13:39.87 10.0 positive automatic P 12 23.839 -2.29932 0.57971
II.KAPI.BHZ.00 2018-06-12T23:13:14.12 10.0 positive automatic P 99 21.174 -0.163453 0.869565
MY.LDM.BHZ. 2018-06-12T23:13:14.27 10.0 positive automatic P 70 20.9797 2.09935 0.952381
GE.MALK.BHZ. 2018-06-12T23:13:13.32 10.0 negative automatic P 300 20.9104 1.90904 0.930233
GE.HALK.BHZ. 2018-06-12T23:13:00.40 10.0 negative automatic P 294 19.7652 1.42941 0.43956
TM.UBPT.BHZ. 2018-06-12T23:12:42.03 10.0 positive automatic P 21 18.4874 -2.93938 0.796813
GE.JAGI.BHZ. 2018-06-12T23:12:20.07 10.0 positive automatic P 114 16.644 -2.24862 0.930233
MY.SBM.BHZ. 2018-06-12T23:11:52.77 10.0 positive automatic P 72 14.166 3.04945 0.909091
GE.SMRI.BHZ. 2018-06-12T23:11:30.62 10.0 negative automatic P 114 12.703 0.874128 0.869565
MY.KSM.BHZ. 2018-06-12T23:11:23.82 10.0 positive automatic P 73 12.0559 2.94531 0
MY.KUM.BHZ. 2018-06-12T23:10:17.77 10.0 positive automatic P 15 7.5082 -0.803197 0.952381
GE.LHMI.BHZ. 2018-06-12T23:10:16.77 10.0 positive automatic P 346 7.4269 -0.675852 0.43956
MY.IPM.BHZ. 2018-06-12T23:10:10.12 10.0 positive automatic P 19 6.8424 0.659225 0.909091
GE.MNAI.BHZ. 2018-06-12T23:09:41.92 10.0 positive automatic P 120 4.8253 0.188328 0.952381
GE.GSI.BHZ. 2018-06-12T23:09:22.22 10.0 positive automatic P 340 3.4847 -1.0824 0.930233
GE.BKNI.BHZ. 2018-06-12T23:09:21.92 10.0 positive automatic P 45 3.2436 1.9428 0.952381
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