Earthquake with magnitude of Md 2.4 on date 25-06-1998 and time 18:35:33 (UTC) in region Costa Siciliana nord occidentale (Trapani)

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

  • 25-06-1998 18:35:33 (UTC)
  • 25-06-1998 20:35:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.3920, 12.8300 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km NE of Trapani (68759 inhabitants)
56 Km NW of Palermo (674435 inhabitants)
69 Km NW of Bagheria (55387 inhabitants)
74 Km NE of Marsala (83194 inhabitants)
85 Km N of Mazara del Vallo (51718 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 2.1
1998-06-25
18:35:33
38.392 12.83 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 344139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-06-25 18:35:33 ± 0.191
Latitude 38.3920 ± 0.0154
Longitude 12.8300 ± 0.0235
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 344139

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) 2673.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00356
Epicentral distance of station farthest from the epicenter (degree) 0.00963
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 4
Type of magnitude Md
Reference to an origin 344139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:22:18

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 344139
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
--.CS9.Z. 1998-06-25T18:35:54.93 10.0 undecidable manual PG 114 1.0656 0.09 1.4
--.LVI.Z. 1998-06-25T18:35:53.54 10.0 undecidable manual SG 223 0.555 -0.58 0.2
--.USI.Z. 1998-06-25T18:35:49.40 10.0 undecidable manual SG 40 0.4107 -0.43 0.4
--.ERC.Z. 1998-06-25T18:35:48.20 10.0 undecidable manual SG 208 0.3996 -0.66 0.1
--.LVI.Z. 1998-06-25T18:35:45.76 10.0 undecidable manual PG 223 0.555 0.47 0.8
--.USI.Z. 1998-06-25T18:35:42.61 10.0 undecidable manual PG 40 0.4107 0.01 2.1
--.ERC.Z. 1998-06-25T18:35:42.37 10.0 undecidable manual PG 208 0.3996 0.11 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