Earthquake with magnitude of Md 2.2 on date 11-02-1989 and time 12:58:29 (Italy) in region 4 km NE Prepotto (UD)

A magnitude Md 2.2 earthquake occured in region: 4 km NE Prepotto (UD), on

  • 11-02-1989 11:58:29 (UTC)
  • 11-02-1989 12:58:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.0730, 13.5120 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
Prepotto UD 4 769 769
Dolegna del Collio GO 5 370 1139
San Leonardo UD 6 1129 2268
Cividale del Friuli UD 7 11292 13560
San Pietro al Natisone UD 7 2171 15731
Stregna UD 8 356 16087
Torreano UD 9 2139 18226
Premariacco UD 9 4163 22389
Savogna UD 10 411 22800
Corno di Rosazzo UD 10 3219 26019
Moimacco UD 10 1675 27694
Grimacco UD 11 342 28036
Pulfero UD 11 962 28998
San Floriano del Collio GO 12 796 29794
Cormons GO 13 7414 37208
San Giovanni al Natisone UD 13 6197 43405
Manzano UD 13 6455 49860
Drenchia UD 14 115 49975
Remanzacco UD 14 6185 56160
Capriva del Friuli GO 15 1713 57873
Mossa GO 15 1584 59457
Buttrio UD 15 4074 63531
San Lorenzo Isontino GO 16 1564 65095
Faedis UD 16 2945 68040
Moraro GO 16 768 68808
Pradamano UD 17 3574 72382
Gorizia GO 17 34844 107226
Povoletto UD 17 5471 112697
Mariano del Friuli GO 18 1530 114227
Farra d'Isonzo GO 18 1733 115960
Chiopris-Viscone UD 18 648 116608
Medea GO 19 953 117561
Trivignano Udinese UD 19 1620 119181
Savogna d'Isonzo GO 20 1717 120898

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Udine (99169 inhabitants)
51 Km NW of Trieste (204420 inhabitants)
67 Km E of Pordenone (51229 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 2.2 1989-02-11
11:58:29
46.073 13.512 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 86929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-02-11 11:58:29 ± 0.251
Latitude 46.0730 ± 0.0148
Longitude 13.5120 ± 0.0240
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 86929

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) 2478.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00235
Epicentral distance of station farthest from the epicenter (degree) 0.01158
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 86929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:21:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CEY.Z. 1989-02-11T11:58:55.10 10.0 undecidable manual SG 117 0.7104 0.75 0.4
--.CTI.Z. 1989-02-11T11:58:53.50 10.0 undecidable manual PN 269 1.2876 0.36 1.1
--.TRI.Z. 1989-02-11T11:58:44.38 10.0 undecidable manual SG 154 0.3996 0.13 0.8
--.CEY.Z. 1989-02-11T11:58:43.50 10.0 undecidable manual PG 117 0.7104 -0.29 1.6
--.FVI.Z. 1989-02-11T11:58:43.00 10.0 undecidable manual PG 316 0.7215 -0.91 0.7
--.RBL.Z. 1989-02-11T11:58:42.91 10.0 undecidable manual SG 6 0.3663 -0.24 0.7
--.VOY.Z. 1989-02-11T11:58:39.70 10.0 undecidable manual SG 98 0.2553 -0.18 0.8
--.TRI.Z. 1989-02-11T11:58:38.15 10.0 undecidable manual PG 154 0.3996 0.19 2
--.RBL.Z. 1989-02-11T11:58:38.76 10.0 undecidable manual PG 6 0.3663 1.43 0.4
--.VOY.Z. 1989-02-11T11:58:34.90 10.0 undecidable manual PG 98 0.2553 -0.54 1.4
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