Earthquake with magnitude of Md 3.1 on date 12-01-1986 and time 07:29:52 (Italy) in region Costa Catanese (Catania)

A magnitude Md 3.1 earthquake occured in region: Costa Catanese (Catania), on

  • 12-01-1986 06:29:52 (UTC)
  • 12-01-1986 07:29:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.612, 15.174 at 5 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
Acireale CT 1 52622 52622
Aci Catena CT 3 29851 82473
Aci Sant'Antonio CT 4 17984 100457
Valverde CT 6 7840 108297
Aci Bonaccorsi CT 6 3524 111821
Aci Castello CT 7 18723 130544
Viagrande CT 7 8563 139107
San Gregorio di Catania CT 8 11966 151073
San Giovanni la Punta CT 8 23060 174133
Trecastagni CT 8 10910 185043
Santa Venerina CT 9 8592 193635
Tremestieri Etneo CT 10 20589 214224
Pedara CT 10 14102 228326
Sant'Agata li Battiati CT 10 9479 237805
Zafferana Etnea CT 11 9517 247322
Gravina di Catania CT 11 25838 273160
Mascalucia CT 11 31958 305118
Nicolosi CT 13 7463 312581
Giarre CT 13 27659 340240
Milo CT 14 1087 341327
Riposto CT 14 14838 356165
San Pietro Clarenza CT 14 7743 363908
Catania CT 14 314555 678463
Sant'Alfio CT 15 1582 680045
Camporotondo Etneo CT 16 5023 685068
Mascali CT 16 14282 699350
Belpasso CT 17 28108 727458
Misterbianco CT 18 49410 776868

Municipalities with at least 50000 inhabitants

An earthquake occurred to
1 Km E of Acireale (52622 inhabitants)
14 Km NE of Catania (314555 inhabitants)
62 Km N of Siracusa (122291 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
73 Km SW of Messina (238439 inhabitants)
86 Km NE of Ragusa (73313 inhabitants)
91 Km NE of Modica (54633 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
99 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
Bulletin
Rev1000
Md 3.1 1986-01-12
06:29:52
37.612 15.174 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 20089
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-01-12 06:29:52 ± 0.275
Latitude 37.6120 ± 0.0194
Longitude 15.1740 ± 0.0308
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 20089

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) 3469.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.00526
Epicentral distance of station farthest from the epicenter (degree) 0.014
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

Md:3.1

Field Value
Value 3.1
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 20089
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:22:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.FAI.Z. 1986-01-12T06:30:35.50 10.0 undecidable manual SN 254 0.0111 1.23 0.2
--.GIB.Z. 1986-01-12T06:30:28.00 10.0 undecidable manual SG 292 0.0088 0.71 0.6
--.GR9.Z. 1986-01-12T06:30:22.00 10.0 undecidable manual PN 38 0.014 0.88 0.6
--.FAI.Z. 1986-01-12T06:30:16.50 10.0 undecidable manual PN 254 0.0111 -0.29 1.3
--.PZI.Z. 1986-01-12T06:30:15.50 10.0 undecidable manual SG 197 0.0053 0.94 0.3
--.GIB.Z. 1986-01-12T06:30:11.50 10.0 undecidable manual PG 292 0.0088 -1.26 0.3
--.MSI.Z. 1986-01-12T06:30:06.50 10.0 undecidable manual PG 26 0.0059 -0.36 1.4
--.RCI.Z. 1986-01-12T06:30:06.00 10.0 undecidable manual PG 36 0.0055 0 1.6
--.PZI.Z. 1986-01-12T06:30:05.00 10.0 negative manual PG 197 0.0053 -0.41 2.7
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download