Earthquake with magnitude of Md 2.2 on date 20-06-1998 and time 23:49:15 (Italy) in region 6 km E Gibellina (TP)

A magnitude Md 2.2 earthquake occured in region: 6 km E Gibellina (TP), on

  • 20-06-1998 21:49:15 (UTC)
  • 20-06-1998 23:49:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.829, 12.931 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
Gibellina TP 6 4115 4115
Santa Ninfa TP 7 5043 9158
Salaparuta TP 10 1696 10854
Vita TP 11 2056 12910
Calatafimi-Segesta TP 11 6712 19622
Salemi TP 11 10794 30416
Poggioreale TP 12 1494 31910
Partanna TP 12 10607 42517
Montevago AG 15 3006 45523
Camporeale PA 16 3373 48896
Santa Margherita di Belice AG 17 6363 55259
Alcamo TP 17 45307 100566
Roccamena PA 20 1505 102071

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Mazara del Vallo (51718 inhabitants)
42 Km SE of Trapani (68759 inhabitants)
44 Km E of Marsala (83194 inhabitants)
50 Km SW of Palermo (674435 inhabitants)
58 Km SW of Bagheria (55387 inhabitants)
82 Km NW of Agrigento (59770 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
1998-06-20
21:49:15
37.829 12.931 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 343239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1998-06-20 21:49:15 ± 0.748
Latitude 37.8290 ± 0.0537
Longitude 12.9310 ± 0.0216
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 343239

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) 6264.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
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) 0.9
Epicentral distance of station closest to the epicenter (degree) 0.003
Epicentral distance of station farthest from the epicenter (degree) 0.00809
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:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 343239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 22:21:29

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 343239
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. 1998-06-20T21:49:35.10 10.0 undecidable manual PG 82 0.0081 1.39 0.9
--.MPG.Z. 1998-06-20T21:49:33.00 10.0 undecidable manual SG 44 0.0042 -0.33 0.8
--.LVI.Z. 1998-06-20T21:49:33.53 10.0 undecidable manual SG 288 0.0044 -0.46 0.8
--.ERC.Z. 1998-06-20T21:49:29.39 10.0 undecidable manual SG 307 0.003 0.87 0.5
--.MPG.Z. 1998-06-20T21:49:25.00 10.0 undecidable manual PG 44 0.0042 -0.7 1.5
--.LVI.Z. 1998-06-20T21:49:24.89 10.0 undecidable manual PG 288 0.0044 -1.19 1.1
--.ERC.Z. 1998-06-20T21:49:23.83 10.0 undecidable manual PG 307 0.003 0.91 1.4
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