Earthquake with magnitude of Md 2.5 on date 20-09-2003 and time 08:18:22 (Italy) in region 7 km NE Palagonia (CT)

A magnitude Md 2.5 earthquake occured in region: 7 km NE Palagonia (CT), on

  • 20-09-2003 06:18:22 (UTC)
  • 20-09-2003 08:18:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3820, 14.7870 at 15 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
Palagonia CT 7 16608 16608
Ramacca CT 8 10894 27502
Scordia CT 11 17095 44597
Militello in Val di Catania CT 12 7443 52040
Mineo CT 15 5159 57199
Castel di Iudica CT 18 4625 61824
Francofonte SR 19 12800 74624

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Catania (314555 inhabitants)
42 Km SW of Acireale (52622 inhabitants)
51 Km N of Ragusa (73313 inhabitants)
53 Km NE of Vittoria (63339 inhabitants)
57 Km NW of Siracusa (122291 inhabitants)
58 Km N of Modica (54633 inhabitants)
59 Km NE of Gela (75827 inhabitants)
65 Km E of Caltanissetta (63360 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 2.1
2003-09-20
06:18:22
37.382 14.787 15 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 486159
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-09-20 06:18:22 ± 0.165
Latitude 37.3820 ± 0.0198
Longitude 14.7870 ± 0.0131
Depth (km) 15 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 486159

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) 2488.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 169
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.01133
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 486159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:43:34

ML:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 486159
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
--.SOI.Z. 2003-09-20T06:19:01.65 10.0 undecidable manual SN 55 1.2099 0.77 0
--.MTTG.Z. 2003-09-20T06:18:55.70 10.0 undecidable manual SN 49 0.9435 0.49 0.2
--.CLTB.Z. 2003-09-20T06:18:45.37 10.0 undecidable manual PN 279 1.2543 0.1 1.5
--.SOI.Z. 2003-09-20T06:18:44.40 10.0 undecidable manual PN 55 1.2099 -0.25 1.2
--.SLNA.Z. 2003-09-20T06:18:43.77 10.0 undecidable manual PN 2 1.1655 -0.34 1
--.MTTG.Z. 2003-09-20T06:18:40.63 10.0 undecidable manual PN 49 0.9435 -0.38 0.9
--.GIB.Z. 2003-09-20T06:18:39.29 10.0 undecidable manual PG 315 0.8436 -0.14 1.7
--.CSLB.Z. 2003-09-20T06:18:38.84 10.0 undecidable manual PG 314 0.7881 0.4 0.9
--.AGST.Z. 2003-09-20T06:18:36.58 10.0 undecidable manual SG 109 0.3663 0.1 0.7
--.AGST.Z. 2003-09-20T06:18:30.54 10.0 undecidable manual PG 109 0.3663 -0.02 1.9
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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