Earthquake with magnitude of Md 2.5 on date 12-09-1993 and time 21:50:16 (UTC) in region 9 km N Andreis (PN)

A magnitude Md 2.5 earthquake occured in region: 9 km N Andreis (PN), on

  • 12-09-1993 21:50:16 (UTC)
  • 12-09-1993 23:50:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.2850, 12.6370 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
Andreis PN 9 259 259
Claut PN 10 956 1215
Frisanco PN 10 622 1837
Barcis PN 12 256 2093
Tramonti di Sopra PN 12 321 2414
Tramonti di Sotto PN 12 387 2801
Forni di Sotto UD 13 600 3401
Maniago PN 14 11698 15099
Meduno PN 14 1574 16673
Fanna PN 14 1583 18256
Cavasso Nuovo PN 14 1525 19781
Montereale Valcellina PN 14 4433 24214
Cimolais PN 15 397 24611
Vajont PN 16 1719 26330
Forni di Sopra UD 16 993 27323
Ampezzo UD 19 1006 28329
Arba PN 19 1309 29638
Socchieve UD 20 908 30546
Sequals PN 20 2200 32746

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Pordenone (51229 inhabitants)
52 Km W of Udine (99169 inhabitants)
75 Km NE of Treviso (83731 inhabitants)
97 Km N of Venezia (263352 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
ML-VAX 1.5
1993-09-12
21:50:16
46.285 12.637 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 196379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-09-12 21:50:16 ± 0.168
Latitude 46.2850 ± 0.0126
Longitude 12.6370 ± 0.0125
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 196379

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) 1700.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00291
Epicentral distance of station farthest from the epicenter (degree) 0.00809
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 196379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:04:32

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 196379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.VOY.Z. 1993-09-12T21:50:47.20 10.0 undecidable manual SG 105 0.8991 0.17 0.6
--.CTI.Z. 1993-09-12T21:50:40.76 10.0 undecidable manual SG 251 0.7215 -0.42 0.6
--.RBL.Z. 1993-09-12T21:50:39.10 10.0 undecidable manual SG 76 0.6549 -0.15 0.9
--.VOY.Z. 1993-09-12T21:50:34.40 10.0 undecidable manual PG 105 0.8991 0.46 1
--.CTI.Z. 1993-09-12T21:50:30.73 10.0 undecidable manual PG 251 0.7215 0.16 1.9
--.RBL.Z. 1993-09-12T21:50:28.37 10.0 undecidable manual PG 76 0.6549 -1.02 0.4
--.FVI.Z. 1993-09-12T21:50:28.62 10.0 undecidable manual SG 17 0.3219 0.23 0.7
--.FVI.Z. 1993-09-12T21:50:23.25 10.0 undecidable manual PG 17 0.3219 0.08 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