Earthquake with magnitude of Md 2.5 on date 06-10-1991 and time 06:11:47 (Italy) in region 6 km NE Taipana (UD)

A magnitude Md 2.5 earthquake occured in region: 6 km NE Taipana (UD), on

  • 06-10-1991 05:11:47 (UTC)
  • 06-10-1991 06:11:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.3040, 13.3840 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Taipana UD 6 636 636
Resia UD 10 1033 1669
Lusevera UD 10 643 2312
Chiusaforte UD 13 672 2984
Attimis UD 14 1805 4789
Nimis UD 15 2740 7529
Tarcento UD 16 9012 16541
Resiutta UD 16 309 16850
Montenars UD 16 538 17388
Pulfero UD 16 962 18350
Dogna UD 17 175 18525
Faedis UD 17 2945 21470
Magnano in Riviera UD 18 2336 23806
Artegna UD 19 2885 26691
Moggio Udinese UD 19 1714 28405
Gemona del Friuli UD 19 10964 39369
Venzone UD 19 2117 41486
Torreano UD 20 2139 43625
Savogna UD 20 411 44036

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Udine (99169 inhabitants)
68 Km NE of Pordenone (51229 inhabitants)
79 Km NW of Trieste (204420 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
Md 2.5 1991-10-06
05:11:47
46.304 13.384 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 150599
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1991-10-06 05:11:47 ± 0.389
Latitude 46.3040 ± 0.0434
Longitude 13.3840 ± 0.0488
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 150599

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) 6109.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00397
Epicentral distance of station farthest from the epicenter (degree) 0.01101
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 150599
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:20:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CTI.Z. 1991-10-06T05:12:27.85 10.0 undecidable manual SN 258 1.221 0.46 0.5
--.CTI.Z. 1991-10-06T05:12:11.67 10.0 undecidable manual PN 258 1.221 1.04 0.6
--.TRI.Z. 1991-10-06T05:12:08.91 10.0 undecidable manual SG 156 0.6438 -1.61 0.1
--.FVI.Z. 1991-10-06T05:12:05.21 10.0 undecidable manual SG 305 0.4995 -0.7 0.6
--.VOY.Z. 1991-10-06T05:12:04.60 10.0 undecidable manual SG 127 0.444 0.67 0.6
--.TRI.Z. 1991-10-06T05:12:00.51 10.0 undecidable manual PG 156 0.6438 -0.38 2
--.FVI.Z. 1991-10-06T05:11:57.62 10.0 undecidable manual PG 305 0.4995 -0.61 1.6
--.VOY.Z. 1991-10-06T05:11:57.50 10.0 undecidable manual PG 127 0.444 0.42 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download