Earthquake with magnitude of Mwp 6.1 on date 21-12-2018 and time 07:33:57 (Italy) in region Papua New Guinea [Land]

A magnitude Mwp 6.1 earthquake occured in region: Papua New Guinea [Land], on

  • 21-12-2018 06:33:57 (UTC)
  • 21-12-2018 07:33:57 (UTC +01:00) Italian time
  • 21-12-2018 17:33:57 (UTC +11:00) local time in the region of the earthquake (Pacific/Bougainville)

and geographic coordinates (lat, lon) -5.45, 151.77 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 6.1

Mwpd 6.3
2018-12-21
06:33:57
-5.45 151.77 20 2018-12-21
06:57:11
Sala Sismica INGV-Roma 64044121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-21 06:33:57
Latitude -5.45
Longitude 151.77
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 64044121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 20469
Semi-minor axis of confidence ellipse (meter) 15876
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 16527.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64.5142
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 59
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.60482
Epicentral distance of station closest to the epicenter (degree) 6.04393
Epicentral distance of station farthest from the epicenter (degree) 103.16545
Number of stations at which the event was observed 53
Number of stations from which data was used for origin computation 53
Magnitudes information

Mwp:6.1

Field Value
Value 6.1
Uncertainty 0.1
Num. used stations 13
Type of magnitude Mwp
Reference to an origin 64044121
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-12-21 06:57:11

Mwpd:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 10
Type of magnitude Mwpd
Reference to an origin 64044121
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-12-21 06:57:11

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 29
Type of magnitude mb
Reference to an origin 64044121
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-12-21 06:57:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.BW06.BHZ.00 2018-12-21T06:47:42.18 10.0 negative automatic Pdiff 47 100.0556 2.00819 0
US.MVCO.BHZ.00 2018-12-21T06:47:47.70 10.0 positive automatic Pdiff 53 101.0375 3.17517 0
US.WUAZ.BHZ.00 2018-12-21T06:47:45.25 10.0 positive automatic sP 55 98.7327 3.27812 0
US.AHID.BHZ.00 2018-12-21T06:47:38.13 10.0 positive automatic P 48 98.9235 3.04013 0.0396479
US.ISCO.BHZ.00 2018-12-21T06:47:37.00 10.0 negative automatic Pdiff 50 103.1655 -17.0874 0
US.DUG.BHZ.00 2018-12-21T06:47:32.58 10.0 positive automatic P 50 97.643 3.32225 0.0479344
US.HLID.BHZ.00 2018-12-21T06:47:28.33 10.0 negative automatic P 47 96.5105 4.13849 0.0554925
NN.PRN.HHZ. 2018-12-21T06:47:19.83 10.0 positive automatic P 53 95.8238 -1.18291 0.05904
US.ELK.BHZ.00 2018-12-21T06:47:24.75 10.0 positive automatic P 50 95.8124 3.66002 0.0565208
US.NEW.BHZ.00 2018-12-21T06:47:17.43 10.0 negative automatic P 42 94.7957 1.23003 0.0585764
US.BMO.BHZ.00 2018-12-21T06:47:17.43 10.0 negative automatic P 45 94.4903 2.55738 0.0628973
US.TPNV.BHZ.00 2018-12-21T06:47:14.63 10.0 negative automatic P 53 94.8479 -1.95495 0.0583075
BK.CMB.BHZ.00 2018-12-21T06:47:04.82 10.0 negative automatic P 52 91.6585 3.08723 0.0767126
CN.SHB.BHZ. 2018-12-21T06:46:58.88 10.0 negative automatic P 40 90.5021 2.43688 0.089641
CN.INK.BHZ. 2018-12-21T06:46:47.85 10.0 negative automatic P 21 89.4903 -3.67488 0.0988101
CN.DLBC.BHZ. 2018-12-21T06:46:45.05 10.0 negative automatic P 31 88.5285 -2.11596 0.105711
KZ.KKAR.BHZ. 2018-12-21T06:46:39.38 10.0 positive automatic P 314 87.3839 -2.27029 0.108975
US.WRAK.BHZ.00 2018-12-21T06:46:36.73 10.0 negative automatic P 32 86.8334 -2.1665 0.114309
AT.SKAG.BHZ. 2018-12-21T06:46:33.34 10.0 negative automatic P 29 86.1582 -2.24814 0.118844
US.EGAK.BHZ.00 2018-12-21T06:46:29.03 10.0 negative automatic P 23 85.445 -3.05517 0.126361
II.AAK.BHZ.00 2018-12-21T06:46:25.27 10.0 positive automatic P 314 84.4308 -1.94364 0.127011
II.KURK.BHZ.00 2018-12-21T06:46:20.17 10.0 positive automatic P 322 83.7265 -3.21116 0
IU.COLA.BHZ.00 2018-12-21T06:46:14.85 10.0 negative automatic P 22 82.9304 -4.43285 0.14696
IU.MAKZ.BHZ.00 2018-12-21T06:46:03.30 10.0 positive automatic P 319 80.4343 -2.87851 0.159561
II.KDAK.BHZ.00 2018-12-21T06:45:50.37 10.0 positive automatic P 27 77.3382 1.2649 0.198346
AK.TNA.BHZ. 2018-12-21T06:45:46.97 10.0 positive automatic P 16 76.8381 0.688021 0.106942
IU.BILL.BHZ.00 2018-12-21T06:45:27.87 10.0 positive automatic P 6 74.2356 -3.53115 0.227495
II.PALK.BHZ.00 2018-12-21T06:45:23.07 10.0 positive automatic P 279 72.0358 4.65032 0.240049
AU.KDU.BHZ. 2018-12-21T06:42:19.82 10.0 negative automatic S 248 20.3681 2.55134 0
JP.JNU.BHZ. 2018-12-21T06:41:54.45 10.0 negative automatic P 334 43.3639 -2.35196 0.683831
JP.JMN.BHZ. 2018-12-21T06:41:51.65 10.0 positive automatic P 338 42.6814 0.374687 0.56254
AU.MORW.BHZ. 2018-12-21T06:41:37.35 10.0 positive automatic P 231 41.1936 -1.73433 0.69947
AU.GIRL.BHZ. 2018-12-21T06:41:32.37 10.0 negative automatic P 241 40.0817 2.51049 0.7547
JP.JOW.BHZ. 2018-12-21T06:41:23.75 10.0 negative automatic P 326 39.4875 -1.18466 0.691364
II.TAU.BHZ.00 2018-12-21T06:41:11.22 10.0 positive automatic P 185 37.6655 1.59931 0.756942
GE.JAGI.BHZ. 2018-12-21T06:41:05.47 10.0 positive automatic P 263 37.4458 -2.2991 0.778814
IU.MBWA.BHZ.00 2018-12-21T06:40:45.05 10.0 positive automatic P 240 34.7884 0.0125288 0.87193
AU.FORT.BHZ. 2018-12-21T06:40:33.57 10.0 positive automatic P 218 33.7282 -2.27303 0.883647
AU.HTT.BHZ. 2018-12-21T06:40:04.22 10.0 negative automatic P 201 30.4228 -2.70331 0.943387
AU.WRKA.BHZ. 2018-12-21T06:39:59.42 10.0 negative automatic P 227 29.8309 -2.25681 0.97561
II.MSVF.BHZ.00 2018-12-21T06:39:53.47 10.0 positive automatic P 118 28.4718 3.82512 0.952381
GE.SOEI.BHZ. 2018-12-21T06:39:45.97 10.0 positive automatic P 259 27.5861 4.1879 0.97561
GE.SANI.BHZ. 2018-12-21T06:39:28.77 10.0 positive automatic P 277 25.9441 1.95739 0
AU.ARMA.BHZ. 2018-12-21T06:39:18.25 10.0 negative automatic P 180 24.9683 0.104911 0.43956
ND.ONTNC.BHZ.00 2018-12-21T06:38:56.99 10.0 positive automatic sP 141 22.0357 1.01714 0
AU.QLP.BHZ. 2018-12-21T06:38:51.20 10.0 positive automatic P 198 22.323 -0.980397 0.727273
AU.MTN.BHZ. 2018-12-21T06:38:45.65 10.0 positive automatic P 249 21.6567 0.603396 0.909091
IU.GUMO.BHZ.00 2018-12-21T06:38:33.70 10.0 positive automatic P 340 20.2329 4.02302 0.43956
AU.KDU.BHZ. 2018-12-21T06:38:30.65 10.0 positive automatic P 248 20.3681 -0.471859 0.434783
AU.EIDS.BHZ. 2018-12-21T06:38:22.97 10.0 negative automatic P 182 19.9299 -3.40734 0.454545
ND.KOUNC.BHZ.00 2018-12-21T06:38:18.85 10.0 negative automatic P 142 19.3836 -1.54067 0.57971
IU.CTAO.BHZ.00 2018-12-21T06:37:34.67 10.0 negative automatic P 200 15.5893 0.260381 0.930233
AU.COEN.BHZ. 2018-12-21T06:36:46.37 10.0 positive automatic P 224 12 0.627076 0.952381
IU.PMG.BHZ.00 2018-12-21T06:35:26.87 10.0 negative automatic P 229 6.0439 2.80667 0.952381
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download