Earthquake with magnitude of Md 2.2 on date 18-12-1990 and time 13:55:01 (Italy) in region 7 km N Centuripe (EN)

A magnitude Md 2.2 earthquake occured in region: 7 km N Centuripe (EN), on

  • 18-12-1990 12:55:01 (UTC)
  • 18-12-1990 13:55:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6880, 14.7410 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
Centuripe EN 7 5470 5470
Adrano CT 9 36122 41592
Regalbuto EN 10 7277 48869
Biancavilla CT 13 24007 72876
Bronte CT 14 19172 92048
Catenanuova EN 14 4866 96914
Santa Maria di Licodia CT 15 7641 104555
Troina EN 16 9373 113928
CesarĂ² ME 18 2439 116367
Gagliano Castelferrato EN 18 3593 119960
San Teodoro ME 18 1403 121363
Ragalna CT 19 3924 125287
PaternĂ² CT 19 48228 173515
Agira EN 19 8345 181860
Maletto CT 19 3920 185780

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of Catania (314555 inhabitants)
38 Km W of Acireale (52622 inhabitants)
64 Km E of Caltanissetta (63360 inhabitants)
82 Km NE of Gela (75827 inhabitants)
84 Km N of Vittoria (63339 inhabitants)
85 Km N of Ragusa (73313 inhabitants)
85 Km NW of Siracusa (122291 inhabitants)
91 Km SW of Messina (238439 inhabitants)
92 Km SW of Reggio di Calabria (183035 inhabitants)
92 Km N 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 2.2
ML-VAX 1.6
1990-12-18
12:55:01
37.688 14.741 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 132649
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-18 12:55:01 ± 0.215
Latitude 37.6880 ± 0.0102
Longitude 14.7410 ± 0.0317
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 132649

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) 3013.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00988
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 132649
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:03:35

ML:1.6

Field Value
Value 1.6
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 132649
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
--.ATN.Z. 1990-12-18T12:55:27.73 10.0 undecidable manual SG 50 0.7326 -0.32 0.5
--.PZI.Z. 1990-12-18T12:55:26.19 10.0 undecidable manual SG 165 0.6438 0.85 0.2
--.SOI.Z. 1990-12-18T12:55:24.50 10.0 undecidable manual PN 69 1.0989 0.98 0.3
--.GIB.Z. 1990-12-18T12:55:23.49 10.0 undecidable manual SG 298 0.6327 -1.42 0
--.MEU.Z. 1990-12-18T12:55:23.12 10.0 undecidable manual SG 172 0.5772 0.09 0.6
--.ATN.Z. 1990-12-18T12:55:16.60 10.0 undecidable manual PG 50 0.7326 -0.78 0.7
--.GIB.Z. 1990-12-18T12:55:15.81 10.0 undecidable manual PG 298 0.6327 0.79 0.7
--.PZI.Z. 1990-12-18T12:55:14.93 10.0 positive manual PG 165 0.6438 -0.34 2.7
--.MEU.Z. 1990-12-18T12:55:13.70 10.0 undecidable manual PG 172 0.5772 -0.24 1.5
--.MNO.Z. 1990-12-18T12:55:10.96 10.0 undecidable manual SG 351 0.2442 -0.23 0.6
--.MNO.Z. 1990-12-18T12:55:07.27 10.0 positive manual PG 351 0.2442 0.17 3.1
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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