Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 19-12-2009 and time 16:54:00 (UTC) in region 9 km SE Maletto (CT)

A magnitude ML 2.5 earthquake occured in region: 9 km SE Maletto (CT), on

  • 19-12-2009 16:54:00 (UTC)
  • 19-12-2009 17:54:00 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7940, 14.9530 at 36 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Maletto CT 9 3920 3920
Randazzo CT 10 10900 14820
Bronte CT 11 19172 33992
Santa Domenica Vittoria ME 14 980 34972
Moio Alcantara ME 15 717 35689
Maniace CT 15 3765 39454
Roccella Valdemone ME 16 666 40120
Milo CT 16 1087 41207
Malvagna ME 17 733 41940
Zafferana Etnea CT 17 9517 51457
Linguaglossa CT 18 5403 56860
Sant'Alfio CT 18 1582 58442
Adrano CT 18 36122 94564
Castiglione di Sicilia CT 18 3215 97779
Ragalna CT 18 3924 101703
Biancavilla CT 18 24007 125710
Piedimonte Etneo CT 20 3963 129673

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km NW of Acireale (52622 inhabitants)
34 Km NW of Catania (314555 inhabitants)
69 Km SW of Messina (238439 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
85 Km E of Caltanissetta (63360 inhabitants)
87 Km NW of Siracusa (122291 inhabitants)
99 Km N of Ragusa (73313 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 		ML 2.5 2009-12-19
16:54:00		 37.794 14.953 36 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1000669
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-12-19 16:54:00 ± 0.22
Latitude 37.7940 ± 0.0144
Longitude 14.9530 ± 0.0193
Depth (km) 36 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1000669

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1790
Semi-minor axis of confidence ellipse (meter) 1423
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 308
Circular confidence region, given by single value of horizontal uncertainty (meter) 2334.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 164
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64391
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 6
Magnitude information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1000669
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:10:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAVA.EHE. 2009-12-19T16:55:18.71 10.0 undecidable manual Sg 0 0 0
IV.FIU.EHN. 2009-12-19T16:54:29.95 10.0 undecidable manual Pg 0 0 0
IV.RAVA.EHE. 2009-12-19T16:54:27.18 10.0 undecidable manual Pg 0 0 0
IV.HVZN.HHE. 2009-12-19T16:54:23.37 0.6 undecidable manual Sg 197 71.4729 0.388 43
IV.SSY.HHE. 2009-12-19T16:54:23.26 0.6 undecidable manual Sg 171 71.4729 0.285 44
NI.CGRP.HHE. 2009-12-19T16:54:22.87 10.0 undecidable manual Pg 0 0 0
IV.HCRL.HHE. 2009-12-19T16:54:19.51 0.3 undecidable manual Sg 173 57.1983 -0.015 71
IV.STR4.BHN. 2009-12-19T16:54:17.13 10.0 undecidable manual Pg 0 0 0
IV.STR3.BHZ. 2009-12-19T16:54:16.39 10.0 undecidable manual Pg 0 0 0
IV.GALF.HHZ. 2009-12-19T16:54:14.86 0.3 undecidable manual Sg 255 35.1426 0.175 72
IV.ECNV.HHZ. 2009-12-19T16:54:13.20 0.6 undecidable manual Sg 224 30.5472 -0.607 43
IV.SSY.HHE. 2009-12-19T16:54:13.43 0.1 undecidable manual Pg 171 71.4729 0.121 91
IV.MMME.HHZ. 2009-12-19T16:54:13.86 0.6 undecidable manual Sg 59 30.6471 0.023 50
IV.HVZN.HHE. 2009-12-19T16:54:12.54 0.3 undecidable manual Pg 197 71.4729 -0.773 56
IV.HCRL.HHE. 2009-12-19T16:54:11.23 0.1 undecidable manual Pg 173 57.1983 -0.087 94
IV.GALF.HHZ. 2009-12-19T16:54:08.41 0.1 undecidable manual Pg 255 35.1426 -0.111 98
IV.ECNV.HHZ. 2009-12-19T16:54:08.78 0.3 undecidable manual Pg 224 30.5472 0.767 61
IV.MMME.HHZ. 2009-12-19T16:54:08.00 0.1 undecidable manual Pg 59 30.6471 -0.032 100
IV.CESI.HHE. 2009-12-19T16:54:06.94 10.0 undecidable manual Pg 0 0 0
IV.MNS.HHN. 2009-12-19T16:54:02.98 10.0 undecidable manual Pg 0 0 0
IV.PIPA.HHE. 2009-12-19T16:54:00.01 10.0 undecidable manual Pg 0 0 0
IV.GATE.HHZ. 2009-12-19T16:53:58.95 10.0 undecidable manual Pg 0 0 0
IV.SALB.HHZ. 2009-12-19T16:53:36.36 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