Earthquake with magnitude of Md 2.2 on date 03-02-1987 and time 01:10:35 (Italy) in region 4 km N Centuripe (EN)

A magnitude Md 2.2 earthquake occured in region: 4 km N Centuripe (EN), on

  • 03-02-1987 00:10:35 (UTC)
  • 03-02-1987 01:10:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6560, 14.7310 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 4 5470 5470
Regalbuto EN 8 7277 12747
Adrano CT 9 36122 48869
Catenanuova EN 10 4866 53735
Biancavilla CT 12 24007 77742
Santa Maria di Licodia CT 15 7641 85383
Bronte CT 17 19172 104555
PaternĂ² CT 18 48228 152783
Agira EN 18 8345 161128
Gagliano Castelferrato EN 18 3593 164721
Troina EN 18 9373 174094
Ragalna CT 19 3924 178018
Castel di Iudica CT 19 4625 182643

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of Catania (314555 inhabitants)
39 Km W of Acireale (52622 inhabitants)
62 Km E of Caltanissetta (63360 inhabitants)
78 Km NE of Gela (75827 inhabitants)
80 Km N of Vittoria (63339 inhabitants)
81 Km N of Ragusa (73313 inhabitants)
83 Km NW of Siracusa (122291 inhabitants)
89 Km N of Modica (54633 inhabitants)
94 Km SW of Messina (238439 inhabitants)
95 Km SW of Reggio di Calabria (183035 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 1987-02-03
00:10:35
37.656 14.731 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 40359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-02-03 00:10:35 ± 0.585
Latitude 37.6560 ± 0.0247
Longitude 14.7310 ± 0.0261
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 40359

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) 3585.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 252
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00243
Epicentral distance of station farthest from the epicenter (degree) 0.00680
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 40359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:40:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.AT9.Z. 1987-02-03T00:11:02.00 10.0 undecidable manual SG 48 0.7548 -1.08 0
--.GIB.Z. 1987-02-03T00:10:59.50 10.0 undecidable manual SG 301 0.6438 0.14 0.5
--.AT9.Z. 1987-02-03T00:10:52.00 10.0 undecidable manual PG 48 0.7548 0.5 0.6
--.GIB.Z. 1987-02-03T00:10:49.00 10.0 undecidable manual PG 301 0.6438 -0.35 1
--.MS9.Z. 1987-02-03T00:10:46.50 10.0 undecidable manual SG 354 0.2664 0.05 0.9
--.MS9.Z. 1987-02-03T00:10:42.00 10.0 positive manual PG 354 0.2664 0.1 3
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