Earthquake with magnitude of Md 2.3 on date 15-10-1986 and time 07:19:48 (UTC) in region 2 km SE Bronte (CT)

A magnitude Md 2.3 earthquake occured in region: 2 km SE Bronte (CT), on

  • 15-10-1986 07:19:48 (UTC)
  • 15-10-1986 08:19:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7750, 14.8470 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
Bronte CT 2 19172 19172
Maletto CT 6 3920 23092
Maniace CT 10 3765 26857
Adrano CT 13 36122 62979
CesarĂ² ME 14 2439 65418
Randazzo CT 15 10900 76318
Biancavilla CT 15 24007 100325
San Teodoro ME 15 1403 101728
Santa Maria di Licodia CT 18 7641 109369
Ragalna CT 18 3924 113293
Santa Domenica Vittoria ME 19 980 114273
Centuripe EN 19 5470 119743

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of Acireale (52622 inhabitants)
37 Km NW of Catania (314555 inhabitants)
76 Km E of Caltanissetta (63360 inhabitants)
78 Km SW of Messina (238439 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km NW of Siracusa (122291 inhabitants)
95 Km NE of Gela (75827 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
96 Km N 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
Bulletin
Rev1000
Md 2.3 1986-10-15
07:19:48
37.775 14.847 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 35929
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-10-15 07:19:48 ± 0.615
Latitude 37.7750 ± 0.0350
Longitude 14.8470 ± 0.0661
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 35929

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) 6990.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
Number of associated phases, regardless of their use for origin computation 5
Number of defining phases 5
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00607
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 35929
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:36:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GIB.Z. 1986-10-15T07:20:13.00 10.0 undecidable manual SG 288 0.6771 0.68 0.5
--.ML9.Z. 1986-10-15T07:20:13.00 10.0 undecidable manual SG 174 0.666 1.16 0.2
--.GIB.Z. 1986-10-15T07:20:01.50 10.0 undecidable manual PG 288 0.6771 -0.77 1.1
--.ML9.Z. 1986-10-15T07:20:01.50 10.0 undecidable manual PG 174 0.666 -0.49 1.6
--.MS9.Z. 1986-10-15T07:19:53.80 10.0 undecidable manual PG 322 0.1887 0.52 1.6
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