Earthquake with magnitude of Md 3.0 on date 25-12-1985 and time 11:34:49 (UTC) in region 7 km SW Linguaglossa (CT)

A magnitude Md 3.0 earthquake occured in region: 7 km SW Linguaglossa (CT), on

  • 25-12-1985 11:34:49 (UTC)
  • 25-12-1985 12:34:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8, 15.09 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
Linguaglossa CT 7 5403 5403
Sant'Alfio CT 7 1582 6985
Piedimonte Etneo CT 8 3963 10948
Milo CT 8 1087 12035
Mascali CT 10 14282 26317
Fiumefreddo di Sicilia CT 10 9623 35940
Castiglione di Sicilia CT 10 3215 39155
Giarre CT 11 27659 66814
Zafferana Etnea CT 11 9517 76331
Riposto CT 12 14838 91169
Calatabiano CT 12 5308 96477
Moio Alcantara ME 12 717 97194
Francavilla di Sicilia ME 13 3945 101139
Santa Venerina CT 13 8592 109731
Motta Camastra ME 13 845 110576
Gaggi ME 13 3184 113760
Malvagna ME 14 733 114493
Graniti ME 16 1492 115985
Randazzo CT 16 10900 126885
Giardini-Naxos ME 17 9415 136300
Roccella Valdemone ME 17 666 136966
Castelmola ME 18 1088 138054
Taormina ME 18 10960 149014
Santa Domenica Vittoria ME 18 980 149994
Trecastagni CT 20 10910 160904
Pedara CT 20 14102 175006

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km N of Acireale (52622 inhabitants)
32 Km N of Catania (314555 inhabitants)
60 Km SW of Reggio di Calabria (183035 inhabitants)
60 Km SW of Messina (238439 inhabitants)
84 Km N of Siracusa (122291 inhabitants)
97 Km E of Caltanissetta (63360 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 3.0 1985-12-25
11:34:49
37.8 15.09 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 18939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-12-25 11:34:49 ± 0.236
Latitude 37.80 ± 0.02
Longitude 15.09 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 18939

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) 3348.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00486
Epicentral distance of station farthest from the epicenter (degree) 0.01595
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 18939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:21:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.GIB.Z. 1985-12-25T11:35:20.00 10.0 undecidable manual SG 283 0.0078 1.26 0.1
--.ACI.Z. 1985-12-25T11:35:19.20 10.0 undecidable manual PN 29 0.0159 -0.38 1.1
--.CZI.Z. 1985-12-25T11:35:17.40 10.0 undecidable manual PN 29 0.0147 -0.23 1.3
--.PZI.Z. 1985-12-25T11:35:16.00 10.0 undecidable manual SG 189 0.0067 1 0.2
--.FAI.Z. 1985-12-25T11:35:12.00 10.0 undecidable manual PN 245 0.0112 -0.21 1.6
--.DR2.Z. 1985-12-25T11:35:09.00 10.0 undecidable manual PN 37 0.0096 -0.88 0.7
--.GIB.Z. 1985-12-25T11:35:06.00 10.0 undecidable manual PG 283 0.0078 -0.21 1.8
--.PZI.Z. 1985-12-25T11:35:03.50 10.0 undecidable manual PG 189 0.0067 -0.55 1.3
--.GA2.Z. 1985-12-25T11:35:03.70 10.0 undecidable manual PG 57 0.0062 0.74 0.9
--.MSI.Z. 1985-12-25T11:35:01.00 10.0 undecidable manual PG 41 0.0049 0.68 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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