Earthquake with magnitude of Md 2.5 on date 29-04-1990 and time 05:07:39 (Italy) in region Tirreno Meridionale (MARE)

A magnitude Md 2.5 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 29-04-1990 03:07:39 (UTC)
  • 29-04-1990 05:07:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4460, 12.5390 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km N of Trapani (68759 inhabitants)
72 Km N of Marsala (83194 inhabitants)
81 Km W of Palermo (674435 inhabitants)
88 Km N of Mazara del Vallo (51718 inhabitants)
94 Km W of Bagheria (55387 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 1.8
1990-04-29
03:07:39
38.446 12.539 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 115429
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-04-29 03:07:39 ± 0.805
Latitude 38.4460 ± 0.0432
Longitude 12.5390 ± 0.0776
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 115429

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) 8294.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00364
Epicentral distance of station farthest from the epicenter (degree) 0.00712
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 3
Type of magnitude Md
Reference to an origin 115429
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:47:20

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 115429
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
--.USI.Z. 1990-04-29T03:07:59.31 10.0 undecidable manual SG 61 0.555 -0.77 0.4
--.CVT.Z. 1990-04-29T03:07:57.40 10.0 undecidable manual PG 165 0.7881 1.62 0.1
--.LVI.Z. 1990-04-29T03:07:57.64 10.0 undecidable manual SG 199 0.4884 0.12 0.6
--.ERC.Z. 1990-04-29T03:07:54.48 10.0 undecidable manual SG 174 0.3996 -0.61 0.4
--.USI.Z. 1990-04-29T03:07:51.77 10.0 undecidable manual PG 61 0.555 0.18 1.5
--.LVI.Z. 1990-04-29T03:07:49.77 10.0 undecidable manual PG 199 0.4884 -0.34 1.4
--.ERC.Z. 1990-04-29T03:07:48.29 10.0 negative manual PG 174 0.3996 -0.42 2.6
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