Earthquake with magnitude of Md 2.5 on date 11-10-1986 and time 08:42:42 (Italy) in region 11 km SW Paternò (CT)

A magnitude Md 2.5 earthquake occured in region: 11 km SW Paternò (CT), on

  • 11-10-1986 07:42:42 (UTC)
  • 11-10-1986 08:42:42 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4910, 14.8460 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
Paternò CT 11 48228 48228
Motta Sant'Anastasia CT 11 12116 60344
Santa Maria di Licodia CT 15 7641 67985
Misterbianco CT 15 49410 117395
Catenanuova EN 16 4866 122261
Belpasso CT 16 28108 150369
Camporotondo Etneo CT 17 5023 155392
Biancavilla CT 17 24007 179399
Centuripe EN 17 5470 184869
Castel di Iudica CT 17 4625 189494
Ragalna CT 18 3924 193418
Ramacca CT 18 10894 204312
San Pietro Clarenza CT 18 7743 212055
Adrano CT 19 36122 248177

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km W of Catania (314555 inhabitants)
31 Km W of Acireale (52622 inhabitants)
62 Km NW of Siracusa (122291 inhabitants)
64 Km N of Ragusa (73313 inhabitants)
66 Km NE of Vittoria (63339 inhabitants)
69 Km E of Caltanissetta (63360 inhabitants)
71 Km N of Modica (54633 inhabitants)
71 Km NE of Gela (75827 inhabitants)
98 Km SW of Reggio di Calabria (183035 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 2.5 1986-10-11
07:42:42
37.491 14.846 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 35749
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-11 07:42:42 ± 0.592
Latitude 37.4910 ± 0.0350
Longitude 14.8460 ± 0.0582
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 35749

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) 6438.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.4
Epicentral distance of station closest to the epicenter (degree) 0.00340
Epicentral distance of station farthest from the epicenter (degree) 0.01004
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 35749
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:36:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SO9.Z. 1986-10-11T07:43:21.50 10.0 undecidable manual SN 58 1.11 0.09 0.7
--.GIB.Z. 1986-10-11T07:43:13.00 10.0 undecidable manual SG 307 0.8103 0.91 0.7
--.SO9.Z. 1986-10-11T07:43:07.00 10.0 undecidable manual PN 58 1.11 1.83 0.9
--.GIB.Z. 1986-10-11T07:43:01.50 10.0 undecidable manual PG 307 0.8103 1.71 1.1
--.MS9.Z. 1986-10-11T07:42:58.50 10.0 undecidable manual SG 344 0.444 -1.99 0.6
--.MS9.Z. 1986-10-11T07:42:51.50 10.0 undecidable manual PG 344 0.444 -1.6 1.3
--.ML9.Z. 1986-10-11T07:42:50.50 10.0 undecidable manual PG 170 0.3774 -1.12 1.7
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