Earthquake with magnitude of Md 3.5 on date 01-03-1985 and time 12:14:00 (Italy) in region 7 km W Zafferana Etnea (CT)

A magnitude Md 3.5 earthquake occured in region: 7 km W Zafferana Etnea (CT), on

  • 01-03-1985 11:14:00 (UTC)
  • 01-03-1985 12:14:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.68, 15.03 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 7 9517 9517
Nicolosi CT 8 7463 16980
Pedara CT 8 14102 31082
Trecastagni CT 9 10910 41992
Milo CT 9 1087 43079
Santa Venerina CT 10 8592 51671
Viagrande CT 10 8563 60234
Ragalna CT 10 3924 64158
Belpasso CT 11 28108 92266
Aci Bonaccorsi CT 12 3524 95790
Aci Sant'Antonio CT 12 17984 113774
Sant'Alfio CT 12 1582 115356
San Pietro Clarenza CT 12 7743 123099
Mascalucia CT 12 31958 155057
Tremestieri Etneo CT 13 20589 175646
San Giovanni la Punta CT 13 23060 198706
Camporotondo Etneo CT 13 5023 203729
Aci Catena CT 13 29851 233580
Gravina di Catania CT 14 25838 259418
Valverde CT 14 7840 267258
Acireale CT 14 52622 319880
Giarre CT 15 27659 347539
Sant'Agata li Battiati CT 15 9479 357018
Santa Maria di Licodia CT 15 7641 364659
San Gregorio di Catania CT 15 11966 376625
Biancavilla CT 15 24007 400632
Riposto CT 16 14838 415470
PaternĂ² CT 16 48228 463698
Mascali CT 17 14282 477980
Aci Castello CT 17 18723 496703
Adrano CT 18 36122 532825
Misterbianco CT 18 49410 582235
Piedimonte Etneo CT 19 3963 586198
Motta Sant'Anastasia CT 20 12116 598314
Fiumefreddo di Sicilia CT 20 9623 607937

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Acireale (52622 inhabitants)
21 Km N of Catania (314555 inhabitants)
72 Km SW of Reggio di Calabria (183035 inhabitants)
73 Km NW of Siracusa (122291 inhabitants)
73 Km SW of Messina (238439 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
95 Km N of Modica (54633 inhabitants)
97 Km NE of Gela (75827 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 3.5
ML-VAX 3.3
1985-03-01
11:14:00
37.68 15.03 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 2809
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-01 11:14:00 ± 0.305
Latitude 37.68 ± 0.02
Longitude 15.03 ± 0.05
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 2809

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) 5218.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.00575
Epicentral distance of station farthest from the epicenter (degree) 0.03222
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:3.5

Field Value
Value 3.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 2809
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:07:40

ML:3.3

Field Value
Value 3.3
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 2809
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 Takeoff_angle Residual Weight
--.BRT.Z. 1985-03-01T11:14:55.50 10.0 undecidable manual PN 26 0.0322 0.16 1.1
--.TR9.Z. 1985-03-01T11:14:53.80 10.0 undecidable manual PN 2 0.0303 1.48 0.4
--.SGO.Z. 1985-03-01T11:14:47.00 10.0 undecidable manual PN 4 0.0259 1.29 0.6
--.ORI.Z. 1985-03-01T11:14:42.50 10.0 undecidable manual PN 24 0.0234 0.55 1.1
--.ROI.Z. 1985-03-01T11:14:37.50 10.0 undecidable manual PN 32 0.0201 0.66 1.2
--.CSI.Z. 1985-03-01T11:14:37.70 10.0 undecidable manual PN 25 0.0208 -0.27 1.3
--.MMN.Z. 1985-03-01T11:14:36.00 10.0 undecidable manual PN 18 0.0209 -2.11 0.2
--.ERC.Z. 1985-03-01T11:14:33.50 10.0 undecidable manual PN 281 0.0176 0.45 1.4
--.PA1.Z. 1985-03-01T11:14:24.00 10.0 undecidable manual SG 188 0.0059 0.82 0.7
--.FA1.Z. 1985-03-01T11:14:23.00 10.0 undecidable manual PN 249 0.0104 0.99 1
--.GIB.Z. 1985-03-01T11:14:15.10 10.0 undecidable manual PG 291 0.0076 -1.84 0.4
--.PA1.Z. 1985-03-01T11:14:12.80 10.0 undecidable manual PG 188 0.0059 -0.62 2.6
--.RCI.Z. 1985-03-01T11:14:12.20 10.0 undecidable manual PG 49 0.0057 -0.88 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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