Earthquake with magnitude of Md 2.3 on date 18-03-1999 and time 11:53:52 (UTC) in region Confine Italia Slovenia (SLOVENIA)

A magnitude Md 2.3 earthquake occured in region: Confine Italia Slovenia (SLOVENIA), on

  • 18-03-1999 11:53:52 (UTC)
  • 18-03-1999 12:53:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.3130, 13.7030 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
Drenchia UD 16 115 115
Grimacco UD 19 342 457

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NE of Udine (99169 inhabitants)
74 Km N of Trieste (204420 inhabitants)
90 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 2.3 1999-03-18
11:53:52
46.313 13.703 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 361379
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1999-03-18 11:53:52 ± 0.234
Latitude 46.3130 ± 0.0128
Longitude 13.7030 ± 0.0197
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 361379

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) 2073.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 241
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00623
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 361379
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:38:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FVI.Z. 1999-03-18T11:54:16.71 10.0 undecidable manual SG 293 0.6882 0.34 0.2
--.TRI.Z. 1999-03-18T11:54:13.90 10.0 undecidable manual SG 175 0.5994 0.4 0.1
--.GE9.Z. 1999-03-18T11:54:06.43 10.0 undecidable manual SG 265 0.3885 -0.22 0.5
--.FVI.Z. 1999-03-18T11:54:05.99 10.0 undecidable manual PG 293 0.6882 -0.15 1.4
--.TRI.Z. 1999-03-18T11:54:04.35 10.0 undecidable manual PG 175 0.5994 -0.13 1.6
--.PTCC.Z. 1999-03-18T11:54:02.50 10.0 undecidable manual SG 290 0.2553 0.12 0.7
--.GE9.Z. 1999-03-18T11:54:00.39 10.0 undecidable manual PG 265 0.3885 -0.14 1.7
--.PTCC.Z. 1999-03-18T11:53:58.18 10.0 undecidable manual PG 290 0.2553 0.12 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