Earthquake with magnitude of M 2.5 on date 12-08-1987 and time 02:56:01 (UTC) in region Albania

A magnitude M 2.5 earthquake occured in region: Albania, on

  • 12-08-1987 02:56:01 (UTC)
  • 12-08-1987 04:56:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.6480, 20.1710 at 11 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 2.5 1987-08-12
02:56:01
41.648 20.171 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 53739
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-08-12 02:56:01 ± 0.171
Latitude 41.6480 ± 0.0142
Longitude 20.1710 ± 0.0146
Depth (km) 11 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 53739

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) 1989.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.01328
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 53739
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
--.IVA.Z. 1987-08-12T02:56:41.80 10.0 undecidable manual SN 350 1.2321 0.49 0.3
--.TTG.Z. 1987-08-12T02:56:37.10 10.0 undecidable manual SN 319 1.0212 0.71 0.4
--.PVY.Z. 1987-08-12T02:56:33.40 10.0 undecidable manual SG 351 0.9546 -0.79 0.2
--.HCY.Z. 1987-08-12T02:56:28.60 10.0 positive manual PN 303 1.4763 0.85 0.8
--.ULC.Z. 1987-08-12T02:56:28.00 10.0 undecidable manual SG 295 0.7437 0.31 0.7
--.OHR.Z. 1987-08-12T02:56:26.10 10.0 undecidable manual SG 138 0.7104 -0.29 0.5
--.SDA.Z. 1987-08-12T02:56:24.20 10.0 undecidable manual SG 306 0.6216 0.78 0.4
--.IVA.Z. 1987-08-12T02:56:24.00 10.0 undecidable manual PN 350 1.2321 -0.51 0.8
--.BDV.Z. 1987-08-12T02:56:23.70 10.0 negative manual PN 303 1.1766 -0.03 2.1
--.PVY.Z. 1987-08-12T02:56:20.00 10.0 undecidable manual PG 351 0.9546 -0.39 1
--.SKO.Z. 1987-08-12T02:56:20.50 10.0 undecidable manual PG 70 0.999 -0.67 0.7
--.TTG.Z. 1987-08-12T02:56:20.60 10.0 undecidable manual PN 319 1.0212 -1.07 0.6
--.BCI.Z. 1987-08-12T02:56:17.60 10.0 undecidable manual PG 354 0.7215 1.55 0.1
--.ULC.Z. 1987-08-12T02:56:16.00 10.0 positive manual PG 295 0.7437 -0.64 1.6
--.OHR.Z. 1987-08-12T02:56:15.70 10.0 undecidable manual PG 138 0.7104 -0.19 1.2
--.SDA.Z. 1987-08-12T02:56:14.00 10.0 negative manual PG 306 0.6216 -0.18 2.5
--.TIR.Z. 1987-08-12T02:56:10.00 10.0 negative manual PG 217 0.3774 0.33 2.3
--.PHP.Z. 1987-08-12T02:56:10.70 10.0 undecidable manual SG 78 0.1998 0.62 0.5
--.PHP.Z. 1987-08-12T02:56:06.70 10.0 positive manual PG 78 0.1998 0.22 2.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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