INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.0 on date 16-12-2018 and time 15:26:23 (Italy) in region Western Australia [Sea: Australia]

A magnitude Mwp 6.0 earthquake occured in region: Western Australia [Sea: Australia], on

  • 16-12-2018 14:26:23 (UTC)
  • 16-12-2018 15:26:23 (UTC +01:00) Italian time
  • 16-12-2018 22:26:23 (UTC +08:00) local time in the region of the earthquake (Australia/Perth)

and geographic coordinates (lat, lon) -23.04, 112.66 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 Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 mb 5.5
Mwp 6.0

Mwpd 6.2
2018-12-16
14:26:23
-23.04 112.66 10 2018-12-16
14:42:46
Sala Sismica INGV-Roma 63949361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-16 14:26:23
Latitude -23.04
Longitude 112.66
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 63949361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 15438
Semi-minor axis of confidence ellipse (meter) 14392
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 34
Circular confidence region, given by single value of horizontal uncertainty (meter) 13370.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75.6372
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 51
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.17037
Epicentral distance of station closest to the epicenter (degree) 1.50539
Epicentral distance of station farthest from the epicenter (degree) 71.08227
Number of stations at which the event was observed 51
Number of stations from which data was used for origin computation 51
Magnitudes information

Mwpd:6.2

Field Value
Value 6.2
Uncertainty 0.1
Num. used stations 36
Type of magnitude Mwpd
Reference to an origin 63949361
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-12-16 14:42:46

Mwp:6

Field Value
Value 6
Uncertainty 0.1
Num. used stations 36
Type of magnitude Mwp
Reference to an origin 63949361
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-12-16 14:42:46

mb:5.5

Field Value
Value 5.5
Uncertainty 0.2
Num. used stations 47
Type of magnitude mb
Reference to an origin 63949361
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-12-16 14:42:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.ULN.BHZ.00 2018-12-16T14:37:39.47 10.0 positive automatic P 356 71.0823 -0.840445 0.285095
JP.JMM.BHZ. 2018-12-16T14:37:10.05 10.0 positive automatic P 24 66.3962 -0.65771 0.18995
IU.MAJO.BHZ.00 2018-12-16T14:36:56.97 10.0 positive automatic P 23 64.2782 0.83929 0.193669
JP.JGF.BHZ. 2018-12-16T14:36:48.25 10.0 positive automatic P 22 63.1313 -0.793773 0.249546
II.MSVF.BHZ.00 2018-12-16T14:36:37.47 10.0 positive automatic P 98 61.0362 -0.647514 0.224783
II.ABPO.BHZ.00 2018-12-16T14:36:33.42 10.0 positive automatic P 260 60.7031 -0.924781 0.021477
GE.VOI.BHZ. 2018-12-16T14:36:29.50 10.0 positive automatic P 257 60.3673 -1.86082 0.224569
JP.JMN.BHZ. 2018-12-16T14:36:29.75 10.0 positive automatic P 20 60.2563 -0.659727 0.272036
IU.SBA.BHZ.00 2018-12-16T14:36:28.67 10.0 positive automatic P 169 60.2478 -3.39255 0.257714
GE.SBV.BHZ. 2018-12-16T14:36:27.95 10.0 positive automatic P 267 59.9284 -1.3375 0.0633485
JP.JTU.BHZ. 2018-12-16T14:36:25.70 10.0 positive automatic P 16 59.7214 -2.01467 0.234791
JP.JNU.BHZ. 2018-12-16T14:36:18.95 10.0 positive automatic P 18 58.789 -0.631689 0.27092
IO.EVN.BHZ. 2018-12-16T14:36:05.35 10.0 positive automatic P 333 56.7672 -1.81397 0.0519772
NZ.URZ.HHZ.10 2018-12-16T14:36:02.38 10.0 positive automatic P 122 56.357 -1.33193 0.275185
IU.SNZO.BHZ.00 2018-12-16T14:35:48.12 10.0 positive automatic P 125 54.3783 -0.365503 0.28995
NZ.KHZ.HHZ.10 2018-12-16T14:35:41.96 10.0 positive automatic P 127 53.5131 -0.16119 0.299403
NZ.ODZ.HHZ.10 2018-12-16T14:35:27.87 10.0 positive automatic P 130 51.5604 -0.511669 0.322514
ND.ONTNC.BHZ.00 2018-12-16T14:35:12.84 10.0 positive automatic P 100 49.348 -0.137649 0.17195
IU.TATO.BHZ.00 2018-12-16T14:35:05.37 10.0 positive automatic P 11 48.7718 -1.7866 0.360458
ND.KOUNC.BHZ.00 2018-12-16T14:35:01.65 10.0 positive automatic P 97 47.7539 1.19903 0.093998
AU.MCQ.BHZ. 2018-12-16T14:34:50.82 10.0 positive automatic P 145 46.5372 0.188617 0.386705
RM.SLV.BHZ. 2018-12-16T14:34:39.12 10.0 positive automatic P 348 45.1766 -0.688103 0.420125
GE.MALK.BHZ. 2018-12-16T14:34:34.62 10.0 positive automatic P 311 44.4454 0.874617 0.434064
II.PALK.BHZ.00 2018-12-16T14:34:27.82 10.0 positive automatic P 310 43.5348 1.15935 0.422257
GE.HALK.BHZ. 2018-12-16T14:34:20.90 10.0 positive automatic P 309 42.7188 0.812933 0.458944
AU.ARMA.BHZ. 2018-12-16T14:33:20.20 10.0 positive automatic P 111 35.398 1.29791 0.653277
AU.EIDS.BHZ. 2018-12-16T14:33:15.30 10.0 positive automatic P 102 35.0025 0.617495 0.141676
GE.GENI.BHZ. 2018-12-16T14:33:02.97 10.0 positive automatic P 57 33.5853 -0.137007 0.725722
AU.TOO.BHZ.00 2018-12-16T14:32:45.38 10.0 positive automatic P 125 31.6222 0.0542519 0.857639
IU.CTAO.BHZ.00 2018-12-16T14:32:43.92 10.0 positive automatic P 91 31.315 0.831568 0.874554
MY.KUM.BHZ. 2018-12-16T14:32:36.32 10.0 positive automatic P 336 30.664 -0.653379 0.420966
AU.COEN.BHZ. 2018-12-16T14:32:33.97 10.0 positive automatic P 78 30.2576 0.363896 0.948053
MY.IPM.BHZ. 2018-12-16T14:32:28.77 10.0 positive automatic P 336 29.7719 0.0819817 0.43956
PS.PSI.BHZ. 2018-12-16T14:32:21.96 10.0 positive automatic P 331 29.0099 0.366551 0.909091
MY.LDM.BHZ. 2018-12-16T14:32:21.92 10.0 positive automatic P 12 28.7887 0.045648 0.43956
AU.QLP.BHZ. 2018-12-16T14:32:20.22 10.0 positive automatic P 104 28.8057 0.0473917 0.952381
GE.GSI.BHZ. 2018-12-16T14:32:18.87 10.0 positive automatic P 327 28.4306 2.6597 0.930233
GE.FAKI.BHZ. 2018-12-16T14:32:10.77 10.0 positive automatic P 46 27.6532 0.65034 0.615385
MY.SBM.BHZ. 2018-12-16T14:31:50.87 10.0 positive automatic P 359 25.4969 -0.526822 1.07303
AU.HTT.BHZ. 2018-12-16T14:31:46.67 10.0 positive automatic P 120 25.2658 -1.81531 0.91954
GE.SANI.BHZ. 2018-12-16T14:31:43.12 10.0 positive automatic P 34 24.651 0.936609 0.877674
MY.KSM.BHZ. 2018-12-16T14:31:43.57 10.0 positive automatic P 354 24.6203 0.375622 1.06333
GE.LUWI.BHZ. 2018-12-16T14:31:38.17 10.0 positive automatic P 25 24.0909 -0.0696614 0.190561
GE.BKB.BHZ. 2018-12-16T14:31:22.47 10.0 positive automatic P 11 22.3173 0.122105 0.825739
AU.KDU.BHZ. 2018-12-16T14:31:10.00 10.0 positive automatic P 65 21.476 0.886281 0.996388
AU.MTN.BHZ. 2018-12-16T14:30:58.47 10.0 positive automatic P 63 20.2861 0.841417 1.04984
GE.SOEI.BHZ. 2018-12-16T14:30:25.97 10.0 positive automatic P 42 17.314 1.0864 0.929733
GE.MMRI.BHZ. 2018-12-16T14:30:20.32 10.0 positive automatic P 34 17.0835 -0.997326 0.952381
GE.JAGI.BHZ. 2018-12-16T14:29:47.32 10.0 positive automatic P 6 14.6409 -2.22527 1.34102
IU.MBWA.BHZ.00 2018-12-16T14:28:01.67 10.0 positive automatic P 75 6.8167 -0.545359 0.909091
AU.GIRL.BHZ. 2018-12-16T14:26:49.70 10.0 positive automatic P 75 1.5054 0.499353 1.33222
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