Earthquake with magnitude of M 2.1 on date 26-02-1985 and time 19:20:29 (UTC) in region 7 km SW Resia (UD)

A magnitude M 2.1 earthquake occured in region: 7 km SW Resia (UD), on

  • 26-02-1985 19:20:29 (UTC)
  • 26-02-1985 20:20:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.33, 13.25 at 6 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
Resia UD 7 1033 1033
Lusevera UD 7 643 1676
Resiutta UD 8 309 1985
Venzone UD 9 2117 4102
Montenars UD 10 538 4640
Chiusaforte UD 10 672 5312
Gemona del Friuli UD 10 10964 16276
Moggio Udinese UD 10 1714 17990
Taipana UD 11 636 18626
Bordano UD 11 754 19380
Artegna UD 12 2885 22265
Magnano in Riviera UD 12 2336 24601
Tarcento UD 13 9012 33613
Amaro UD 13 823 34436
Nimis UD 14 2740 37176
Trasaghis UD 14 2227 39403
Dogna UD 14 175 39578
Osoppo UD 15 2936 42514
Attimis UD 16 1805 44319
Buja UD 16 6563 50882
Treppo Grande UD 17 1708 52590
Cavazzo Carnico UD 17 1052 53642
Cassacco UD 18 2938 56580
Tricesimo UD 19 7600 64180
Reana del Rojale UD 20 4966 69146
Colloredo di Monte Albano UD 20 2223 71369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of Udine (99169 inhabitants)
62 Km NE of Pordenone (51229 inhabitants)
85 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
Rev 1000 M 2.1 1985-02-26
19:20:29
46.33 13.25 6 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 2609
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-26 19:20:29 ± 0.199
Latitude 46.33 ± 0.01
Longitude 13.25 ± 0.01
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2609

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) 897.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00275
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 2609
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:50:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ZOU.Z. 1985-02-26T19:20:41.30 10.0 undecidable manual SG 320 0.0027 0.36 0.3
--.DRE.Z. 1985-02-26T19:20:41.50 10.0 undecidable manual SG 119 0.0028 0.05 0.5
--.RBL.Z. 1985-02-26T19:20:39.00 10.0 undecidable manual SG 62 0.0022 0.05 0.6
--.COL.Z. 1985-02-26T19:20:37.10 10.0 undecidable manual SG 155 0.0019 -0.65 0
--.MPR.Z. 1985-02-26T19:20:36.60 10.0 undecidable manual SG 244 0.0018 -0.69 0
--.DRE.Z. 1985-02-26T19:20:36.80 10.0 undecidable manual PG 119 0.0028 0.5 0.2
--.BUA.Z. 1985-02-26T19:20:35.20 10.0 undecidable manual SG 218 0.0012 0.12 0.9
--.ZOU.Z. 1985-02-26T19:20:35.90 10.0 undecidable manual PG 320 0.0027 -0.09 1.2
--.COL.Z. 1985-02-26T19:20:34.40 10.0 undecidable manual PG 155 0.0019 0.24 1.1
--.RBL.Z. 1985-02-26T19:20:34.50 10.0 undecidable manual PG 62 0.0022 -0.34 0.7
--.BAD.Z. 1985-02-26T19:20:33.40 10.0 undecidable manual SG 183 0.0008 0.01 1
--.MPR.Z. 1985-02-26T19:20:33.70 10.0 undecidable manual PG 244 0.0018 -0.19 1.3
--.BOO.Z. 1985-02-26T19:20:33.60 10.0 undecidable manual SG 265 0.0009 -0.23 0.7
--.BUA.Z. 1985-02-26T19:20:32.70 10.0 positive manual PG 218 0.0012 0.09 3.1
--.BAD.Z. 1985-02-26T19:20:31.80 10.0 negative manual PG 183 0.0008 0.16 2.7
--.BOO.Z. 1985-02-26T19:20:31.90 10.0 undecidable manual PG 265 0.0009 0.01 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download