Earthquake with magnitude of Md 3.1 on date 08-04-1985 and time 03:07:55 (Italy) in region 4 km SE Santa Venerina (CT)

A magnitude Md 3.1 earthquake occured in region: 4 km SE Santa Venerina (CT), on

  • 08-04-1985 01:07:55 (UTC)
  • 08-04-1985 03:07:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.67, 15.18 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
Santa Venerina CT 4 8592 8592
Acireale CT 6 52622 61214
Giarre CT 7 27659 88873
Zafferana Etnea CT 7 9517 98390
Riposto CT 8 14838 113228
Aci Catena CT 8 29851 143079
Aci Sant'Antonio CT 8 17984 161063
Milo CT 8 1087 162150
Sant'Alfio CT 9 1582 163732
Viagrande CT 10 8563 172295
Aci Bonaccorsi CT 10 3524 175819
Mascali CT 10 14282 190101
Trecastagni CT 10 10910 201011
Valverde CT 11 7840 208851
Pedara CT 12 14102 222953
San Giovanni la Punta CT 13 23060 246013
Aci Castello CT 13 18723 264736
San Gregorio di Catania CT 13 11966 276702
Tremestieri Etneo CT 14 20589 297291
Fiumefreddo di Sicilia CT 14 9623 306914
Nicolosi CT 15 7463 314377
Sant'Agata li Battiati CT 15 9479 323856
Mascalucia CT 15 31958 355814
Piedimonte Etneo CT 16 3963 359777
Gravina di Catania CT 16 25838 385615
San Pietro Clarenza CT 17 7743 393358
Calatabiano CT 18 5308 398666
Camporotondo Etneo CT 19 5023 403689
Linguaglossa CT 20 5403 409092
Belpasso CT 20 28108 437200
Catania CT 20 314555 751755

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of Acireale (52622 inhabitants)
20 Km NE of Catania (314555 inhabitants)
64 Km SW of Reggio di Calabria (183035 inhabitants)
67 Km SW of Messina (238439 inhabitants)
68 Km N of Siracusa (122291 inhabitants)
92 Km NE of Ragusa (73313 inhabitants)
97 Km NE of Modica (54633 inhabitants)
98 Km NE of Vittoria (63339 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 3.1 1985-04-08
01:07:55
37.67 15.18 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 4359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-08 01:07:55 ± 0.403
Latitude 37.67 ± 0.02
Longitude 15.18 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4359

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) 4307.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 158
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.7
Epicentral distance of station closest to the epicenter (degree) 0.0051
Epicentral distance of station farthest from the epicenter (degree) 0.03189
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 4359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ORI.Z. 1985-04-08T01:09:08.50 10.0 undecidable manual SN 22 0.0232 1.03 0.3
--.BRT.Z. 1985-04-08T01:08:49.80 10.0 undecidable manual PN 25 0.0319 -0.67 0.9
--.SGO.Z. 1985-04-08T01:08:40.50 10.0 undecidable manual PN 2 0.026 -0.97 0.8
--.ORI.Z. 1985-04-08T01:08:39.50 10.0 undecidable manual PN? 22 0.0232 2.35 0
--.ERC.Z. 1985-04-08T01:08:32.00 10.0 undecidable manual PN 281 0.0187 1.69 0.4
--.GIB.Z. 1985-04-08T01:08:29.00 10.0 undecidable manual SG 290 0.0087 0.38 0.6
--.PA1.Z. 1985-04-08T01:08:19.50 10.0 undecidable manual SG 198 0.006 0.34 0.7
--.RCI.Z. 1985-04-08T01:08:17.50 10.0 undecidable manual SG 40 0.0051 1.55 0.2
--.GIB.Z. 1985-04-08T01:08:14.00 10.0 positive manual PG 290 0.0087 -0.72 2.7
--.PA1.Z. 1985-04-08T01:08:09.00 10.0 negative manual PG 198 0.006 -0.25 3.3
--.RCI.Z. 1985-04-08T01:08:06.50 10.0 undecidable manual PG 40 0.0051 -0.9 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download