Earthquake with magnitude of Md 2.5 on date 08-02-1990 and time 03:06:20 (Italy) in region 2 km NE Caltagirone (CT)

A magnitude Md 2.5 earthquake occured in region: 2 km NE Caltagirone (CT), on

  • 08-02-1990 02:06:20 (UTC)
  • 08-02-1990 03:06:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.2560, 14.5300 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
Caltagirone CT 2 38686 38686
San Michele di Ganzaria CT 10 3245 41931
Grammichele CT 11 13418 55349
Mirabella Imbaccari CT 11 4912 60261
Mineo CT 14 5159 65420
San Cono CT 15 2697 68117
Niscemi CL 18 27558 95675
Licodia Eubea CT 19 3081 98756
Mazzarrone CT 19 4078 102834
Aidone EN 19 4889 107723

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Gela (75827 inhabitants)
34 Km N of Vittoria (63339 inhabitants)
41 Km NW of Ragusa (73313 inhabitants)
49 Km NW of Modica (54633 inhabitants)
49 Km SE of Caltanissetta (63360 inhabitants)
57 Km SW of Catania (314555 inhabitants)
69 Km SW of Acireale (52622 inhabitants)
71 Km W of Siracusa (122291 inhabitants)
84 Km E 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 2.5 1990-02-08
02:06:20
37.256 14.53 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 109749
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-02-08 02:06:20 ± 1.866
Latitude 37.2560 ± 0.0686
Longitude 14.5300 ± 0.1673
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 109749

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) 16657.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 271
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.02097
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 109749
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:42:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.CZI.Z. 1990-02-08T02:06:58.00 10.0 undecidable manual PN 32 2.331 -0.78 0.8
--.PA2.Z. 1990-02-08T02:06:54.96 10.0 undecidable manual PN 50 1.9314 1.56 0.3
--.DR2.Z. 1990-02-08T02:06:50.52 10.0 undecidable manual PN 38 1.7649 -0.62 1.1
--.FE2.Z. 1990-02-08T02:06:47.36 10.0 undecidable manual PN 57 1.4541 0.53 1.4
--.GA2.Z. 1990-02-08T02:06:45.24 10.0 undecidable manual PN 48 1.3653 -0.41 1.5
--.MEU.Z. 1990-02-08T02:06:31.16 10.0 undecidable manual SG 121 0.2775 -0.46 0.6
--.PZI.Z. 1990-02-08T02:06:28.19 10.0 undecidable manual PG 121 0.3885 -0.84 1.1
--.MEU.Z. 1990-02-08T02:06:27.87 10.0 undecidable manual PG 121 0.2775 0.85 1.1
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