Earthquake with magnitude of Md 2.5 on date 01-10-1989 and time 12:53:58 (Italy) in region 6 km NW Ramacca (CT)

A magnitude Md 2.5 earthquake occured in region: 6 km NW Ramacca (CT), on

  • 01-10-1989 11:53:58 (UTC)
  • 01-10-1989 12:53:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.4170, 14.6340 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
Ramacca CT 6 10894 10894
Castel di Iudica CT 9 4625 15519
Raddusa CT 11 3178 18697
Palagonia CT 14 16608 35305
Aidone EN 16 4889 40194
Mineo CT 18 5159 45353
Catenanuova EN 18 4866 50219
Mirabella Imbaccari CT 19 4912 55131

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Catania (314555 inhabitants)
51 Km E of Caltanissetta (63360 inhabitants)
52 Km NE of Gela (75827 inhabitants)
52 Km W of Acireale (52622 inhabitants)
53 Km N of Vittoria (63339 inhabitants)
55 Km N of Ragusa (73313 inhabitants)
63 Km N of Modica (54633 inhabitants)
71 Km NW of Siracusa (122291 inhabitants)
93 Km E of Agrigento (59770 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 1989-10-01
11:53:58
37.417 14.634 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 101319
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1989-10-01 11:53:58 ± 0.169
Latitude 37.4170 ± 0.0104
Longitude 14.6340 ± 0.0203
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 101319

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) 2128.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00389
Epicentral distance of station farthest from the epicenter (degree) 0.00696
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 101319
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:34:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.GIB.Z. 1989-10-01T11:54:25.00 10.0 undecidable manual SG 320 0.7437 0.62 0.3
--.MNO.Z. 1989-10-01T11:54:16.63 10.0 undecidable manual SG 5 0.5106 -0.41 0.6
--.PZI.Z. 1989-10-01T11:54:14.50 10.0 undecidable manual SG 145 0.4329 0 0.9
--.GIB.Z. 1989-10-01T11:54:14.00 10.0 undecidable manual PG 320 0.7437 0.56 0.9
--.FAI.Z. 1989-10-01T11:54:13.50 10.0 undecidable manual PG 259 0.777 -0.55 0.9
--.PZI.Z. 1989-10-01T11:54:08.00 10.0 undecidable manual PG 145 0.4329 0.27 1.8
--.MNO.Z. 1989-10-01T11:54:08.84 10.0 undecidable manual PG 5 0.5106 -0.36 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