Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 19-12-2014 and time 13:48:44 (Italy) in region 8 km S Caltagirone (CT)

A magnitude ML 1.9 earthquake occured in region: 8 km S Caltagirone (CT), on

  • 19-12-2014 12:48:44 (UTC)
  • 19-12-2014 13:48:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.1650, 14.5170 at 21 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
Caltagirone CT 8 38686 38686
Mazzarrone CT 10 4078 42764
Niscemi CL 12 27558 70322
Grammichele CT 12 13418 83740
San Michele di Ganzaria CT 15 3245 86985
Acate RG 15 10954 97939
Licodia Eubea CT 17 3081 101020
Mirabella Imbaccari CT 19 4912 105932
Mineo CT 19 5159 111091
San Cono CT 19 2697 113788

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Vittoria (63339 inhabitants)
26 Km E of Gela (75827 inhabitants)
33 Km NW of Ragusa (73313 inhabitants)
40 Km NW of Modica (54633 inhabitants)
54 Km SE of Caltanissetta (63360 inhabitants)
63 Km SW of Catania (314555 inhabitants)
70 Km W of Siracusa (122291 inhabitants)
76 Km SW of Acireale (52622 inhabitants)
84 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 		ML 1.9 2014-12-19
12:48:44		 37.165 14.5167 21 2015-01-09
10:55:56		 Bollettino Sismico Italiano INGV 16427341
Reviewed
Rev100 		ML 1.9 2014-12-19
12:48:44		 37.212 14.4953 26 2014-12-19
13:14:40		 Sala Sismica INGV-Roma 15013361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-12-19 12:48:44 ± 0.23
Latitude 37.1650 ± 0.0090
Longitude 14.5167 ± 0.0079
Depth (km) 21 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 16427341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 916
Semi-minor axis of confidence ellipse (meter) 435
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.13580
Epicentral distance of station farthest from the epicenter (degree) 0.54679
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 15013361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-12-19 13:14:40

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 16427341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-01-08 23:14:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2014-12-19T12:49:03.20 0.3 undecidable manual S 77 57.8976 102 0.35 66
IV.HAVL.HHZ. 2014-12-19T12:49:03.10 0.3 undecidable manual S 113 58.1973 102 0.18 69
IV.HCRL.HHZ. 2014-12-19T12:49:00.30 0.3 undecidable manual S 74 47.4192 106 0.18 70
IV.HLNI.HHZ. 2014-12-19T12:48:57.20 0.3 undecidable manual S 57 37.4292 111 -0.38 70
IV.HMDC.HHE. 2014-12-19T12:48:56.40 0.6 undecidable manual S 134 32.8449 114 -0.06 50
IV.GALF.HHE. 2014-12-19T12:48:56.29 0.3 undecidable manual P 4 60.6948 102 0.72 59
IV.HAVL.HHZ. 2014-12-19T12:48:55.15 0.1 positive manual P 113 58.1973 102 -0.05 95
IV.HAGA.HHZ. 2014-12-19T12:48:55.21 0.1 positive manual P 77 57.8976 102 0.06 94
IV.MEU.SHZ. 2014-12-19T12:48:55.70 0.3 undecidable manual S 102 28.3494 118 0.32 70
IV.HCRL.HHZ. 2014-12-19T12:48:53.33 0.1 positive manual P 74 47.4192 106 -0.25 93
IV.RAFF.HHZ. 2014-12-19T12:48:52.90 0.6 undecidable manual S 295 15.0738 139 0.32 48
IV.HLNI.HHZ. 2014-12-19T12:48:51.83 0.3 negative manual P 57 37.4292 111 -0.28 71
IV.HMDC.HHE. 2014-12-19T12:48:51.27 0.1 undecidable manual P 134 32.8449 114 -0.19 97
IV.MEU.SHZ. 2014-12-19T12:48:50.75 0.1 positive manual P 102 28.3494 118 -0.09 100
IV.RAFF.HHZ. 2014-12-19T12:48:48.98 0.1 positive manual P 295 15.0738 139 -0.25 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RAFF.HHN. ML:1.9 0.000513 0.38 AML other m 2014-12-19T12:48:53.26
IV.RAFF.HHE. ML:1.8 0.00041549999999999996 0.42 AML other m 2014-12-19T12:48:53.29
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