Earthquake with magnitude of Md 2.4 on date 26-05-1998 and time 17:49:51 (Italy) in region Costa Siciliana sud occidentale (Trapani)

A magnitude Md 2.4 earthquake occured in region: Costa Siciliana sud occidentale (Trapani), on

  • 26-05-1998 15:49:51 (UTC)
  • 26-05-1998 17:49:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.53, 12.835 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
Menfi AG 14 12592 12592
Campobello di Mazara TP 14 11956 24548
Castelvetrano TP 17 31806 56354

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km SE of Mazara del Vallo (51718 inhabitants)
46 Km SE of Marsala (83194 inhabitants)
61 Km SE of Trapani (68759 inhabitants)
71 Km W of Agrigento (59770 inhabitants)
80 Km SW of Palermo (674435 inhabitants)
85 Km SW 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 2.4
ML-VAX 1.9
1998-05-26
15:49:51
37.53 12.835 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 339779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-05-26 15:49:51 ± 1.073
Latitude 37.5300 ± 0.0731
Longitude 12.8350 ± 0.0580
Depth (km) 10 ± 10 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 339779

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) 9601.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 252
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) 0.00486
Epicentral distance of station farthest from the epicenter (degree) 0.00947
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:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 339779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:18:16

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 339779
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 Takeoff_angle Residual Weight
--.CS9.Z. 1998-05-26T15:50:28.34 10.0 undecidable manual SN 66 0.0095 1.15 0.2
--.GIB.Z. 1998-05-26T15:50:12.60 10.0 undecidable manual PN 63 0.0094 0.09 1.8
--.LVI.Z. 1998-05-26T15:50:12.73 10.0 undecidable manual SG 319 0.0053 -0.03 0.8
--.CS9.Z. 1998-05-26T15:50:11.96 10.0 undecidable manual PN 66 0.0095 -0.16 1.6
--.ERC.Z. 1998-05-26T15:50:10.95 10.0 undecidable manual SG 338 0.0049 0.09 0.8
--.LVI.Z. 1998-05-26T15:50:04.15 10.0 undecidable manual PG 319 0.0053 0.36 1.2
--.ERC.Z. 1998-05-26T15:50:01.67 10.0 undecidable manual PG 338 0.0049 -1.02 0.6
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