Earthquake with magnitude of Md 2.2 on date 09-11-1988 and time 20:29:54 (UTC) in region 4 km SE Tarvisio (UD)

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

  • 09-11-1988 20:29:54 (UTC)
  • 09-11-1988 21:29:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4750, 13.6020 at 5 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
Tarvisio UD 4 4326 4326
Malborghetto Valbruna UD 13 951 5277

Municipalities with at least 50000 inhabitants

An earthquake occurred to
54 Km NE of Udine (99169 inhabitants)
93 Km NE of Pordenone (51229 inhabitants)
93 Km N 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 2.2
ML-VAX 1.5
1988-11-09
20:29:54
46.475 13.602 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 80879
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-11-09 20:29:54 ± 1
Latitude 46.4750 ± 0.0579
Longitude 13.6020 ± 0.0705
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 80879

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) 8397.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.00032
Epicentral distance of station farthest from the epicenter (degree) 0.00518
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 80879
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:16:06

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 1
Type of magnitude ML
Reference to an origin 80879
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
--.FVI.Z. 1988-11-09T20:30:15.00 10.0 undecidable manual SG 282 0.5772 -0.73 0.6
--.VOY.Z. 1988-11-09T20:30:12.50 10.0 undecidable manual SG 155 0.4884 -0.36 0.8
--.FVI.Z. 1988-11-09T20:30:07.50 10.0 undecidable manual PG 282 0.5772 0.8 1.4
--.VOY.Z. 1988-11-09T20:30:05.60 10.0 undecidable manual PG 155 0.4884 0.56 1.8
--.RBL.Z. 1988-11-09T20:29:58.00 10.0 undecidable manual SG 214 0.0333 1.28 0.7
--.RBL.Z. 1988-11-09T20:29:54.00 10.0 undecidable manual PG 214 0.0333 -1.72 0.7
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