Earthquake with magnitude of ML 1.8 on date 22-10-2008 and time 04:52:41 (Italy) in region 5 km W Ramacca (CT)

A magnitude ML 1.8 earthquake occured in region: 5 km W Ramacca (CT), on

  • 22-10-2008 02:52:41 (UTC)
  • 22-10-2008 04:52:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3790, 14.6390 at 30 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 5 10894 10894
Palagonia CT 11 16608 27502
Castel di Iudica CT 13 4625 32127
Mineo CT 13 5159 37286
Raddusa CT 14 3178 40464
Aidone EN 17 4889 45353
Militello in Val di Catania CT 18 7443 52796
Mirabella Imbaccari CT 18 4912 57708
Grammichele CT 18 13418 71126
Caltagirone CT 19 38686 109812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Catania (314555 inhabitants)
49 Km N of Vittoria (63339 inhabitants)
49 Km NE of Gela (75827 inhabitants)
51 Km N of Ragusa (73313 inhabitants)
53 Km E of Caltanissetta (63360 inhabitants)
53 Km SW of Acireale (52622 inhabitants)
59 Km N of Modica (54633 inhabitants)
68 Km NW of Siracusa (122291 inhabitants)
94 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 1.8
ML 1.8
2008-10-22
02:52:41
37.379 14.639 30 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 724789
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2008-10-22 02:52:41 ± 0.36
Latitude 37.3790 ± 0.0099
Longitude 14.6390 ± 0.0147
Depth (km) 30 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 724789

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1275
Semi-minor axis of confidence ellipse (meter) 780
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 1702.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.51
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56927
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 724789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:42:50

Md:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 724789
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 13:42:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.HHE. 2008-10-22T02:53:11.59 10.0 undecidable manual Sg 0 0 0
IV.FAGN.HHE. 2008-10-22T02:53:08.09 10.0 undecidable manual Pg 0 0 0
IV.MMME.BHE. 2008-10-22T02:53:07.07 10.0 undecidable manual Pg 0 0 0
IV.HAVL.BHE. 2008-10-22T02:53:02.89 0.6 undecidable manual Sg 137 63.1923 0.853 36
IV.SSY.BHE. 2008-10-22T02:52:58.18 0.1 undecidable manual Sg 123 45.5211 0.437 88
IV.FG5.SHZ. 2008-10-22T02:52:57.61 10.0 undecidable manual Pg 0 0 0
IV.HCRL.BHE. 2008-10-22T02:52:55.11 0.1 undecidable manual Sg 107 36.2415 -0.521 87
IV.RAFF.HHZ. 2008-10-22T02:52:54.04 0.1 undecidable manual Sg 235 30.0477 -0.265 94
IV.ECNV.BHE. 2008-10-22T02:52:53.92 0.1 undecidable manual Sg 15 24.8529 0.612 90
IV.HAVL.BHE. 2008-10-22T02:52:53.81 0.3 undecidable manual Pg 137 63.1923 0.323 65
IV.HVZN.BHZ. 2008-10-22T02:52:53.03 0.1 undecidable manual Sg 163 23.2545 0.001 100
IV.SSY.BHE. 2008-10-22T02:52:51.09 0.1 undecidable manual Pg 123 45.5211 0.083 95
IV.GALF.HHZ. 2008-10-22T02:52:50.00 0.1 undecidable manual Pg 350 37.3293 0.08 98
IV.RAFF.HHZ. 2008-10-22T02:52:49.21 0.1 undecidable manual Pg 235 30.0477 0.188 96
IV.HCRL.BHE. 2008-10-22T02:52:49.19 0.1 undecidable manual Pg 107 36.2415 -0.598 84
IV.ECNV.BHE. 2008-10-22T02:52:48.19 0.1 undecidable manual Pg 15 24.8529 -0.257 93
IV.HVZN.BHZ. 2008-10-22T02:52:47.97 0.1 undecidable manual Pg 163 23.2545 -0.316 94
IV.FSSB.HHN. 2008-10-22T02:52:41.25 10.0 undecidable manual Pg 0 0 0
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