Earthquake with magnitude of Md 2.4 on date 02-10-1987 and time 15:14:39 (Italy) in region 1 km SE Bronte (CT)

A magnitude Md 2.4 earthquake occured in region: 1 km SE Bronte (CT), on

  • 02-10-1987 14:14:39 (UTC)
  • 02-10-1987 15:14:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7770, 14.8410 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 1 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
San Teodoro ME 15 1403 77721
Biancavilla CT 15 24007 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
34 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)
80 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 2.4
ML-VAX 1.9
1987-10-02
14:14:39
37.777 14.841 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 56319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-10-02 14:14:39 ± 0.308
Latitude 37.7770 ± 0.0175
Longitude 14.8410 ± 0.0311
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 56319

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) 3355.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
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) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00899
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 56319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:54:06

ML:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 2
Type of magnitude ML
Reference to an origin 56319
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(km) Takeoff_angle Residual Weight
--.MEU.Z. 1987-10-02T14:15:03.20 10.0 undecidable manual SG 180 0.666 0.58 0.4
--.ATN.Z. 1987-10-02T14:15:02.40 10.0 undecidable manual SG 51 0.6105 1.23 0.1
--.SOI.Z. 1987-10-02T14:14:58.42 10.0 undecidable manual PG 72 0.999 -0.58 0.8
--.MEU.Z. 1987-10-02T14:14:52.52 10.0 undecidable manual PG 180 0.666 -0.26 1.5
--.ATN.Z. 1987-10-02T14:14:51.60 10.0 positive manual PG 51 0.6105 -0.34 3
--.MNO.Z. 1987-10-02T14:14:48.34 10.0 undecidable manual SG 323 0.1887 0.88 0.2
--.MNO.Z. 1987-10-02T14:14:43.39 10.0 undecidable manual PG 323 0.1887 -0.64 1
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