Earthquake with magnitude of Md 2.4 on date 28-06-1988 and time 05:08:49 (Italy) in region 6 km SE Santa Caterina Villarmosa (CL)

A magnitude Md 2.4 earthquake occured in region: 6 km SE Santa Caterina Villarmosa (CL), on

  • 28-06-1988 03:08:49 (UTC)
  • 28-06-1988 05:08:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.55, 14.07 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
Santa Caterina Villarmosa CL 6 5388 5388
Caltanissetta CL 6 63360 68748
San Cataldo CL 10 23253 92001
Villarosa EN 11 4937 96938
Marianopoli CL 14 1906 98844
Resuttano CL 15 2038 100882
Pietraperzia EN 16 7013 107895
Alimena PA 17 2032 109927
Calascibetta EN 19 4528 114455
Enna EN 19 28019 142474
Serradifalco CL 19 6091 148565

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of Caltanissetta (63360 inhabitants)
50 Km NE of Agrigento (59770 inhabitants)
56 Km N of Gela (75827 inhabitants)
77 Km SE of Bagheria (55387 inhabitants)
79 Km NW of Vittoria (63339 inhabitants)
88 Km SE of Palermo (674435 inhabitants)
90 Km W of Catania (314555 inhabitants)
91 Km NW of Ragusa (73313 inhabitants)
97 Km W of Acireale (52622 inhabitants)
98 Km NW of Modica (54633 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 1.8
1988-06-28
03:08:49
37.55 14.07 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 72409
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-06-28 03:08:49 ± 0.291
Latitude 37.55 ± 0.02
Longitude 14.07 ± 0.02
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 72409

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) 3026.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00332
Epicentral distance of station farthest from the epicenter (degree) 0.00769
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 72409
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:08:31

ML:1.8

Field Value
Value 1.8
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 72409
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
--.MEU.Z. 1988-06-28T03:09:17.61 10.0 undecidable manual SG 125 0.0067 2.33 0
--.PZI.Z. 1988-06-28T03:09:17.68 10.0 undecidable manual SG 124 0.0077 -1.07 0.2
--.GIB.Z. 1988-06-28T03:09:05.98 10.0 undecidable manual SG 355 0.0039 0.59 0.5
--.PZI.Z. 1988-06-28T03:09:05.84 10.0 undecidable manual PG 124 0.0077 -0.48 1
--.MEU.Z. 1988-06-28T03:09:04.17 10.0 positive manual PG 125 0.0067 -0.15 2.8
--.FAI.Z. 1988-06-28T03:09:04.19 10.0 undecidable manual SG 228 0.0037 -0.57 0.7
--.MCT.Z. 1988-06-28T03:09:02.90 10.0 undecidable manual SG 280 0.0033 -0.21 0.6
--.FAI.Z. 1988-06-28T03:08:58.84 10.0 undecidable manual PG 228 0.0037 0.59 1.1
--.GIB.Z. 1988-06-28T03:08:58.25 10.0 undecidable manual PG 355 0.0039 -0.36 1.5
--.MCT.Z. 1988-06-28T03:08:57.49 10.0 undecidable manual PG 280 0.0033 0.2 1.6
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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