Earthquake with magnitude of M 2.0 on date 18-05-1991 and time 06:10:50 (Italy) in region Costa Montenegro (MONTENEGRO)

A magnitude M 2.0 earthquake occured in region: Costa Montenegro (MONTENEGRO), on

  • 18-05-1991 04:10:50 (UTC)
  • 18-05-1991 06:10:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.9700, 19.1900 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
M 2.0 1991-05-18
04:10:50
41.97 19.19 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 141449
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-05-18 04:10:50 ± 0.404
Latitude 41.9700 ± 0.0302
Longitude 19.1900 ± 0.0341
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 141449

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 4382.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00939
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

M:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 141449
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:23:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BRY.Z. 1991-05-18T04:11:27.27 10.0 undecidable manual SN 333 1.0434 1.48 0
--.IVA.Z. 1991-05-18T04:11:26.80 10.0 undecidable manual SN 29 1.0323 1.1 0.1
--.HCY.Z. 1991-05-18T04:11:15.75 10.0 undecidable manual SG 313 0.6882 0.91 0.3
--.BRY.Z. 1991-05-18T04:11:11.17 10.0 positive manual PN 333 1.0434 0.32 1.6
--.IVA.Z. 1991-05-18T04:11:10.53 10.0 negative manual PN 29 1.0323 -0.27 1.7
--.BDV.Z. 1991-05-18T04:11:06.50 10.0 undecidable manual SG 319 0.3996 0.88 0.3
--.TTG.Z. 1991-05-18T04:11:06.73 10.0 undecidable manual SG 6 0.4551 -0.48 0.6
--.HCY.Z. 1991-05-18T04:11:03.48 10.0 positive manual PG 313 0.6882 -1.05 0.6
--.TTG.Z. 1991-05-18T04:10:59.48 10.0 negative manual PG 6 0.4551 -0.65 1.5
--.BDV.Z. 1991-05-18T04:10:59.20 10.0 positive manual PG 319 0.3996 -0.19 2.3
--.ULC.Z. 1991-05-18T04:10:54.52 10.0 undecidable manual SG 98 0.0333 0.21 0.7
--.ULC.Z. 1991-05-18T04:10:52.92 10.0 undecidable manual PG 98 0.0333 0.24 2.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download