Earthquake with magnitude of Md 3.0 on date 26-12-1985 and time 00:18:01 (Italy) in region 1 km SW Zafferana Etnea (CT)

A magnitude Md 3.0 earthquake occured in region: 1 km SW Zafferana Etnea (CT), on

  • 25-12-1985 23:18:01 (UTC)
  • 26-12-1985 00:18:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.69, 15.1 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
Zafferana Etnea CT 1 9517 9517
Santa Venerina CT 4 8592 18109
Milo CT 4 1087 19196
Sant'Alfio CT 7 1582 20778
Trecastagni CT 8 10910 31688
Giarre CT 9 27659 59347
Viagrande CT 9 8563 67910
Pedara CT 9 14102 82012
Aci Sant'Antonio CT 10 17984 99996
Riposto CT 10 14838 114834
Aci Bonaccorsi CT 10 3524 118358
Aci Catena CT 11 29851 148209
Acireale CT 11 52622 200831
Nicolosi CT 11 7463 208294
Mascali CT 11 14282 222576
San Giovanni la Punta CT 13 23060 245636
Valverde CT 13 7840 253476
Tremestieri Etneo CT 13 20589 274065
Mascalucia CT 14 31958 306023
San Gregorio di Catania CT 14 11966 317989
San Pietro Clarenza CT 15 7743 325732
Sant'Agata li Battiati CT 15 9479 335211
Piedimonte Etneo CT 15 3963 339174
Gravina di Catania CT 15 25838 365012
Fiumefreddo di Sicilia CT 15 9623 374635
Belpasso CT 15 28108 402743
Ragalna CT 16 3924 406667
Aci Castello CT 16 18723 425390
Camporotondo Etneo CT 16 5023 430413
Linguaglossa CT 17 5403 435816
Calatabiano CT 19 5308 441124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NW of Acireale (52622 inhabitants)
21 Km N of Catania (314555 inhabitants)
67 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
72 Km N of Siracusa (122291 inhabitants)
91 Km NE of Ragusa (73313 inhabitants)
94 Km E of Caltanissetta (63360 inhabitants)
96 Km NE of Vittoria (63339 inhabitants)
97 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
Rev 1000 Md 3.0 1985-12-25
23:18:01
37.69 15.1 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 19009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-12-25 23:18:01 ± 0.289
Latitude 37.69 ± 0.03
Longitude 15.10 ± 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 19009

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) 4154.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.8
Epicentral distance of station closest to the epicenter (degree) 0.00559
Epicentral distance of station farthest from the epicenter (degree) 0.02315
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

Md:3

Field Value
Value 3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 19009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:21:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORI.Z. 1985-12-25T23:18:43.00 10.0 undecidable manual PN 23 0.0232 0.38 1.3
--.FAI.Z. 1985-12-25T23:18:41.00 10.0 undecidable manual SN 250 0.0108 0.62 0.5
--.MMN.Z. 1985-12-25T23:18:40.00 10.0 undecidable manual PN 17 0.0207 1.16 0.7
--.ERC.Z. 1985-12-25T23:18:35.50 10.0 undecidable manual PN 280 0.0181 0.68 1.1
--.CZI.Z. 1985-12-25T23:18:30.30 10.0 undecidable manual PN 27 0.0155 -0.63 1.2
--.RI2.Z. 1985-12-25T23:18:26.80 10.0 undecidable manual PN 56 0.0117 1.6 0.5
--.FAI.Z. 1985-12-25T23:18:24.00 10.0 undecidable manual PN 250 0.0108 0.2 1.8
--.PZI.Z. 1985-12-25T23:18:24.50 10.0 undecidable manual SG 191 0.0057 0.66 0.5
--.DR2.Z. 1985-12-25T23:18:22.60 10.0 undecidable manual PN 34 0.0104 -0.47 1.5
--.GIB.Z. 1985-12-25T23:18:18.00 10.0 undecidable manual PG 289 0.008 -0.89 1.2
--.PZI.Z. 1985-12-25T23:18:13.00 10.0 undecidable manual PG 191 0.0057 -1.26 0.8
--.MSI.Z. 1985-12-25T23:18:13.00 10.0 undecidable manual PG 35 0.0056 -0.85 1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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