Earthquake with magnitude of Mwp 6.4 on date 20-08-2019 and time 15:03:56 (Italy) in region Solomon Is. [Sea]

A magnitude Mwp 6.4 earthquake occured in region: Solomon Is. [Sea], on

  • 20-08-2019 13:03:56 (UTC)
  • 20-08-2019 15:03:56 (UTC +02:00) Italian time
  • 21-08-2019 00:03:56 (UTC +11:00) local time in the region of the earthquake (Pacific/Guadalcanal)

and geographic coordinates (lat, lon) -11.4, 166.22 at 65 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 6.4

Mwpd 6.5
2019-08-20
13:03:56
-11.4 166.22 65 2019-08-20
13:21:15
Sala Sismica INGV-Roma 71652801
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 13:03:56
Latitude -11.40
Longitude 166.22
Depth (km) 65 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 71652801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 12162
Semi-minor axis of confidence ellipse (meter) 4868
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 10043.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60.7107
Number of associated phases, regardless of their use for origin computation 48
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.33029
Epicentral distance of station closest to the epicenter (degree) 4.15996
Epicentral distance of station farthest from the epicenter (degree) 55.82794
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 43
Magnitudes information

Mwpd:6.5

Field Value
Value 6.5
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwpd
Reference to an origin 71652801
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-08-20 13:21:15

Mwp:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 12
Type of magnitude Mwp
Reference to an origin 71652801
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-08-20 13:21:15

mb:5.4

Field Value
Value 5.4
Uncertainty 0.1
Num. used stations 29
Type of magnitude mb
Reference to an origin 71652801
Agency INGV
Autore Auto added
Time of creation (UTC) 2019-08-20 13:21:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
JP.JNU.BHZ. 2019-08-20T13:13:24.40 10.0 positive automatic P 324 55.8279 -1.891 0.451727
IU.MAJO.BHZ.00 2019-08-20T13:13:15.57 10.0 positive automatic P 332 54.7186 -2.72006 0.490416
G.INU.BHZ.00 2019-08-20T13:13:13.01 10.0 positive automatic P 331 54.2901 -2.12587 0.474535
JP.JSG.BHZ. 2019-08-20T13:13:06.25 10.0 positive automatic P 331 53.1933 -0.869722 0.502567
JP.JOW.BHZ. 2019-08-20T13:13:05.65 10.0 positive automatic P 317 53.0899 -0.729059 0.451665
MY.KKM.BHZ. 2019-08-20T13:13:04.87 10.0 negative automatic P 287 52.7192 1.11339 0
GE.JAGI.BHZ. 2019-08-20T13:12:52.47 10.0 positive automatic P 268 51.3084 -0.688658 0.497732
JP.JHJ2.BHZ. 2019-08-20T13:12:49.95 10.0 negative automatic P 331 51.1387 -1.92134 0.547933
MY.LDM.BHZ. 2019-08-20T13:12:47.57 10.0 positive automatic P 287 50.2882 2.07327 0.548997
AU.MORW.BHZ. 2019-08-20T13:12:42.72 10.0 positive automatic P 241 49.8576 0.464601 0.562593
IU.POHA.BHZ.00 2019-08-20T13:12:35.82 10.0 positive automatic P 51 48.868 0.812275 0.579175
G.KIP.BHZ.00 2019-08-20T13:12:29.07 10.0 positive automatic P 47 48.0618 0.584958 0.599919
II.KAPI.BHZ.00 2019-08-20T13:12:16.45 10.0 positive automatic P 274 46.3819 0.98927 0.629295
IU.MBWA.BHZ.00 2019-08-20T13:12:09.55 10.0 positive automatic P 251 45.5137 0.938386 0.65252
GE.LUWI.BHZ. 2019-08-20T13:12:00.02 10.0 positive automatic P 280 44.3453 0.72139 0.60795
GE.MMRI.BHZ. 2019-08-20T13:11:51.22 10.0 positive automatic P 269 43.3625 -0.221286 0.61111
GE.SOEI.BHZ. 2019-08-20T13:11:35.22 10.0 positive automatic P 268 41.2398 0.869103 0.573402
AU.FITZ.BHZ. 2019-08-20T13:11:21.83 10.0 positive automatic P 255 39.7315 0.0855446 0.710206
AU.MTN.BHZ. 2019-08-20T13:10:36.47 10.0 negative automatic P 264 34.3116 0.674233 0.28033
NZ.ODZ.HHZ.10 2019-08-20T13:10:30.13 10.0 positive automatic P 174 33.8574 -1.75414 0.891672
AU.HTT.BHZ. 2019-08-20T13:10:27.10 10.0 positive automatic P 224 33.2954 0.0204137 0.842078
AU.KDU.BHZ. 2019-08-20T13:10:24.52 10.0 positive automatic P 264 33.0091 0.0545986 0.392671
AU.TOO.BHZ.00 2019-08-20T13:10:16.53 10.0 positive automatic P 212 32.0959 -0.0492403 0.856506
NZ.KHZ.HHZ.10 2019-08-20T13:10:09.94 10.0 negative automatic P 170 31.6659 -2.76864 0.899515
AU.MILA.BHZ.00 2019-08-20T13:09:57.35 10.0 negative automatic P 208 29.8931 0.149807 0.941176
NZ.URZ.HHZ.10 2019-08-20T13:09:44.17 10.0 negative automatic P 162 28.5689 -1.18181 0.930233
AU.RIV.BHZ. 2019-08-20T13:09:26.35 10.0 positive automatic P 209 26.3166 1.15607 0.869565
AU.QLP.BHZ. 2019-08-20T13:09:19.42 10.0 positive automatic P 231 25.6675 0.0647768 0.930233
NZ.OUZ.HHZ.10 2019-08-20T13:09:11.12 10.0 negative automatic P 165 24.7452 0.152527 0.970874
AU.NIUE.BHZ. 2019-08-20T13:09:07.52 10.0 negative automatic P 111 24.2264 1.27209 0.941176
AU.ARMA.BHZ. 2019-08-20T13:08:58.42 10.0 positive automatic P 213 23.3452 0.0461188 0.987654
AU.COEN.BHZ. 2019-08-20T13:08:53.27 10.0 positive automatic P 261 22.6211 2.32971 0.930233
AU.LHI.BHZ.00 2019-08-20T13:08:35.83 10.0 negative automatic P 197 21.1806 0.24761 0.97561
AU.MANU.BHZ.00 2019-08-20T13:08:33.75 10.0 positive automatic P 295 20.9123 1.04159 0.91954
II.KWJN.BHZ.00 2019-08-20T13:08:30.92 10.0 negative automatic P 4 20.7253 0.250857 0.91954
AU.EIDS.BHZ. 2019-08-20T13:08:23.95 10.0 positive automatic P 224 20.0035 1.04283 0.808081
IU.PMG.BHZ.00 2019-08-20T13:08:11.22 10.0 negative automatic P 274 18.8511 0.898028 0.677966
AU.RABL.BHZ.00 2019-08-20T13:07:30.63 10.0 negative automatic P 296 15.6734 -1.8058 0.8
II.MSVF.BHZ.00 2019-08-20T13:07:01.02 10.0 negative automatic P 120 13.0829 2.41358 0.930233
G.DZM.BHZ.00 2019-08-20T13:06:24.45 10.0 positive automatic P 179 10.6756 -1.34965 0.952381
ND.KOUNC.BHZ.00 2019-08-20T13:06:07.55 10.0 positive automatic P 191 9.3397 0.130389 0.888889
IU.HNR.BHZ.00 2019-08-20T13:05:28.02 10.0 positive automatic P 287 6.4749 -0.226515 0.97561
G.SANVU.BHZ.00 2019-08-20T13:04:54.80 10.0 positive automatic P 167 4.16 -1.76673 0.754717
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