Earthquake with magnitude of M 3.0 on date 22-04-1991 and time 03:08:55 (Italy) in region Albania

A magnitude M 3.0 earthquake occured in region: Albania, on

  • 22-04-1991 01:08:55 (UTC)
  • 22-04-1991 03:08:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7, 20.12 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 3.0 1991-04-22
01:08:55
41.7 20.12 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 139789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-04-22 01:08:55 ± 0.189
Latitude 41.70 ± 0.01
Longitude 20.12 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 139789

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) 2165.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
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) 0.0021
Epicentral distance of station farthest from the epicenter (degree) 0.01676
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

M:3

Field Value
Value 3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 139789
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 Takeoff_angle Residual Weight
--.HCY.Z. 1991-04-22T01:09:43.84 10.0 undecidable manual SN! 302 0.0127 4.1 0
--.NKY.Z. 1991-04-22T01:09:43.49 10.0 undecidable manual SN! 323 0.0125 4.4 0
--.IVA.Z. 1991-04-22T01:09:36.40 10.0 undecidable manual SN! 352 0.0107 2.18 0
--.BDV.Z. 1991-04-22T01:09:34.42 10.0 undecidable manual SN 302 0.0101 1.65 0
--.SKO.Z. 1991-04-22T01:09:29.50 10.0 undecidable manual SG 73 0.0091 -0.65 0.4
--.TTG.Z. 1991-04-22T01:09:29.64 10.0 undecidable manual SG 319 0.0087 0.99 0.3
--.VAY.Z. 1991-04-22T01:09:28.40 10.0 undecidable manual PN 100 0.0168 1.18 0.2
--.LSK.Z. 1991-04-22T01:09:26.00 10.0 undecidable manual PN! 166 0.0142 2.69 0
--.PVY.Z. 1991-04-22T01:09:26.94 10.0 undecidable manual SG 353 0.0081 0.44 0.6
--.BRY.Z. 1991-04-22T01:09:25.94 10.0 negative manual PN 316 0.0151 1.37 0.3
--.OHR.Z. 1991-04-22T01:09:23.10 10.0 undecidable manual SG 138 0.0069 0.87 0.3
--.NKY.Z. 1991-04-22T01:09:21.37 10.0 negative manual PN 323 0.0125 0.71 1.2
--.HCY.Z. 1991-04-22T01:09:21.32 10.0 positive manual PN 302 0.0127 0.28 1.7
--.ULC.Z. 1991-04-22T01:09:19.65 10.0 undecidable manual SG 292 0.0063 -0.31 0.6
--.SKO.Z. 1991-04-22T01:09:18.00 10.0 undecidable manual PG! 73 0.0091 2.5 0
--.IVA.Z. 1991-04-22T01:09:17.77 10.0 positive manual PN 352 0.0107 -0.08 2.1
--.BDV.Z. 1991-04-22T01:09:16.20 10.0 negative manual PN 302 0.0101 -0.81 1.1
--.TTG.Z. 1991-04-22T01:09:13.79 10.0 negative manual PG 319 0.0087 -0.85 1.1
--.PVY.Z. 1991-04-22T01:09:12.85 10.0 negative manual PG 353 0.0081 -0.55 1.7
--.OHR.Z. 1991-04-22T01:09:10.40 10.0 undecidable manual PG 138 0.0069 -0.53 1.7
--.ULC.Z. 1991-04-22T01:09:08.70 10.0 negative manual PG 292 0.0063 -0.92 1
--.TIR.Z. 1991-04-22T01:09:04.00 10.0 positive manual PG 209 0.0036 0.03 2.2
--.KKS.Z. 1991-04-22T01:09:04.60 10.0 undecidable manual PG 29 0.0039 -0.11 2.2
--.PHP.Z. 1991-04-22T01:09:01.00 10.0 negative manual PG 91 0.0021 -0.02 2.2
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