Earthquake with magnitude of Md 2.3 on date 01-10-1989 and time 18:24:02 (Italy) in region 9 km NE Regalbuto (EN)

A magnitude Md 2.3 earthquake occured in region: 9 km NE Regalbuto (EN), on

  • 01-10-1989 17:24:02 (UTC)
  • 01-10-1989 18:24:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7110, 14.7070 at 49 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
Regalbuto EN 9 7277 7277
Centuripe EN 10 5470 12747
Adrano CT 12 36122 48869
Troina EN 13 9373 58242
Bronte CT 14 19172 77414
CesarĂ² ME 15 2439 79853
Gagliano Castelferrato EN 15 3593 83446
San Teodoro ME 15 1403 84849
Catenanuova EN 16 4866 89715
Biancavilla CT 16 24007 113722
Agira EN 17 8345 122067
Santa Maria di Licodia CT 19 7641 129708
Maniace CT 19 3765 133473
Maletto CT 19 3920 137393

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km NW of Catania (314555 inhabitants)
42 Km W of Acireale (52622 inhabitants)
62 Km E of Caltanissetta (63360 inhabitants)
82 Km NE of Gela (75827 inhabitants)
86 Km N of Vittoria (63339 inhabitants)
87 Km N of Ragusa (73313 inhabitants)
89 Km NW of Siracusa (122291 inhabitants)
92 Km SW of Messina (238439 inhabitants)
93 Km SW of Reggio di Calabria (183035 inhabitants)
95 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 2.3 1989-10-01
17:24:02
37.711 14.707 49 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 101369
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-10-01 17:24:02 ± 0.414
Latitude 37.7110 ± 0.0266
Longitude 14.7070 ± 0.0303
Depth (km) 49 ± 5 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 101369

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) 3980.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00194
Epicentral distance of station farthest from the epicenter (degree) 0.01562
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:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 101369
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:34:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GRI.Z. 1989-10-01T17:24:52.00 10.0 undecidable manual S 49 1.7316 0.89 0.1
--.GRI.Z. 1989-10-01T17:24:30.00 10.0 undecidable manual P 49 1.7316 -0.68 0.6
--.PZI.Z. 1989-10-01T17:24:25.50 10.0 undecidable manual S 163 0.6771 -0.9 0.2
--.GIB.Z. 1989-10-01T17:24:24.50 10.0 undecidable manual S 297 0.5994 -0.21 0.8
--.PZI.Z. 1989-10-01T17:24:17.00 10.0 undecidable manual P 163 0.6771 0.59 1.2
--.MNO.Z. 1989-10-01T17:24:17.50 10.0 undecidable manual S 357 0.2109 -0.17 0.8
--.GIB.Z. 1989-10-01T17:24:15.50 10.0 undecidable manual P 297 0.5994 0.06 2.2
--.MNO.Z. 1989-10-01T17:24:11.51 10.0 undecidable manual P 357 0.2109 0.13 2.1
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