Earthquake with magnitude of Md 2.5 on date 10-05-1987 and time 07:37:54 (Italy) in region 10 km SW Bronte (CT)

A magnitude Md 2.5 earthquake occured in region: 10 km SW Bronte (CT), on

  • 10-05-1987 05:37:54 (UTC)
  • 10-05-1987 07:37:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7370, 14.7400 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 10 19172 19172
Adrano CT 12 36122 55294
CesarĂ² ME 12 2439 57733
Regalbuto EN 13 7277 65010
Centuripe EN 13 5470 70480
San Teodoro ME 13 1403 71883
Troina EN 13 9373 81256
Maniace CT 15 3765 85021
Maletto CT 15 3920 88941
Biancavilla CT 16 24007 112948
Gagliano Castelferrato EN 18 3593 116541
Santa Maria di Licodia CT 19 7641 124182
Catenanuova EN 19 4866 129048

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Acireale (52622 inhabitants)
40 Km NW of Catania (314555 inhabitants)
66 Km E of Caltanissetta (63360 inhabitants)
86 Km NE of Gela (75827 inhabitants)
88 Km SW of Messina (238439 inhabitants)
89 Km N of Vittoria (63339 inhabitants)
90 Km W of Reggio di Calabria (183035 inhabitants)
90 Km NW of Siracusa (122291 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
98 Km N of Modica (54633 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 1987-05-10
05:37:54
37.737 14.74 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 46709
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-10 05:37:54 ± 0.568
Latitude 37.7370 ± 0.0278
Longitude 14.7400 ± 0.0932
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 46709

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) 8758.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
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) 0.00178
Epicentral distance of station farthest from the epicenter (degree) 0.00866
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:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations 2
Type of magnitude Md
Reference to an origin 46709
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:45:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.FAI.Z. 1987-05-10T05:38:25.20 10.0 undecidable manual SG 241 0.9657 -1.9 0.1
--.MEU.Z. 1987-05-10T05:38:15.50 10.0 undecidable manual SG 173 0.6327 -0.75 0.6
--.FAI.Z. 1987-05-10T05:38:14.50 10.0 undecidable manual PG 241 0.9657 1.35 0.6
--.MEU.Z. 1987-05-10T05:38:07.00 10.0 undecidable manual PG 173 0.6327 0.11 1.9
--.MNO.Z. 1987-05-10T05:37:58.50 10.0 undecidable manual PG 349 0.1998 -0.4 1.8
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