Earthquake with magnitude of Md 2.6 on date 07-02-1985 and time 11:37:23 (UTC) in region 4 km SW Biancavilla (CT)

A magnitude Md 2.6 earthquake occured in region: 4 km SW Biancavilla (CT), on

  • 07-02-1985 11:37:23 (UTC)
  • 07-02-1985 12:37:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.63, 14.84 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
Biancavilla CT 4 24007 24007
Adrano CT 4 36122 60129
Santa Maria di Licodia CT 5 7641 67770
PaternĂ² CT 8 48228 115998
Centuripe EN 8 5470 121468
Ragalna CT 9 3924 125392
Belpasso CT 13 28108 153500
Catenanuova EN 14 4866 158366
Camporotondo Etneo CT 16 5023 163389
Nicolosi CT 17 7463 170852
Motta Sant'Anastasia CT 17 12116 182968
Regalbuto EN 17 7277 190245
San Pietro Clarenza CT 18 7743 197988
Bronte CT 18 19172 217160
Misterbianco CT 19 49410 266570
Pedara CT 20 14102 280672

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NW of Catania (314555 inhabitants)
29 Km W of Acireale (52622 inhabitants)
70 Km E of Caltanissetta (63360 inhabitants)
75 Km NW of Siracusa (122291 inhabitants)
78 Km N of Ragusa (73313 inhabitants)
80 Km NE of Vittoria (63339 inhabitants)
81 Km NE of Gela (75827 inhabitants)
85 Km N of Modica (54633 inhabitants)
89 Km SW of Reggio di Calabria (183035 inhabitants)
90 Km SW of Messina (238439 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
Rev 1000 Md 2.6 1985-02-07
11:37:23
37.63 14.84 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 1259
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-02-07 11:37:23 ± 1.008
Latitude 37.63 ± 0.05
Longitude 14.84 ± 0.10
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 1259

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) 10559
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 234
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
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) 0.00534
Epicentral distance of station farthest from the epicenter (degree) 0.0089
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:2.6

Field Value
Value 2.6
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 1259
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:06:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.GIB.Z. 1985-02-07T11:37:49.50 10.0 undecidable manual SG 299 0.0066 0.76 0.4
--.PA1.Z. 1985-02-07T11:37:45.50 10.0 undecidable manual SG 173 0.0053 1.11 0.1
--.FA1.Z. 1985-02-07T11:37:42.00 10.0 undecidable manual PG 249 0.0089 -0.71 0.6
--.GIB.Z. 1985-02-07T11:37:38.00 10.0 undecidable manual PG 299 0.0066 0.04 2.8
--.PA1.Z. 1985-02-07T11:37:35.00 10.0 undecidable manual PG 173 0.0053 -0.45 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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