Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 12-01-2018 and time 12:13:49 (Italy) in region 3 km SW Castellana Sicula (PA)

A magnitude ML 2.3 earthquake occured in region: 3 km SW Castellana Sicula (PA), on

  • 12-01-2018 11:13:49 (UTC)
  • 12-01-2018 12:13:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7630, 14.0220 at 37 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
Castellana Sicula PA 3 3411 3411
Blufi PA 5 1029 4440
Polizzi Generosa PA 6 3407 7847
Bompietro PA 7 1401 9248
Petralia Sottana PA 8 2821 12069
Petralia Soprana PA 9 3360 15429
Resuttano CL 9 2038 17467
Alimena PA 11 2032 19499
Caltavuturo PA 13 4017 23516
Scillato PA 15 613 24129
Geraci Siculo PA 16 1945 26074
Sclafani Bagni PA 16 426 26500
Gangi PA 17 6811 33311
Valledolmo PA 17 3594 36905
Santa Caterina Villarmosa CL 19 5388 42293
Vallelunga Pratameno CL 19 3461 45754
Collesano PA 19 4054 49808
Villalba CL 20 1633 51441
Castelbuono PA 20 8943 60384

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km N of Caltanissetta (63360 inhabitants)
57 Km SE of Bagheria (55387 inhabitants)
63 Km NE of Agrigento (59770 inhabitants)
70 Km SE of Palermo (674435 inhabitants)
80 Km N of Gela (75827 inhabitants)
98 Km W of Catania (314555 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 2.3 2018-01-12
11:13:49		 37.763 14.0222 37 2019-04-24
14:49:20		 Bollettino Sismico Italiano INGV 54616691
Reviewed
Rev100 		ML 2.4 2018-01-12
11:13:49		 37.7432 14.0078 36 2018-01-12
11:21:54		 Sala Sismica INGV-Roma 53156661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-01-12 11:13:49 ± 0.11
Latitude 37.7630 ± 0.0081
Longitude 14.0222 ± 0.0080
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 54616691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 805
Semi-minor axis of confidence ellipse (meter) 659
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 22
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.10162
Epicentral distance of station farthest from the epicenter (degree) 1.03062
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 53156661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-01-12 11:21:54

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 54616691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-03-15 13:32:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2018-01-12T11:14:21.21 0.6 undecidable manual S 143 111.5994 54 0.44 0
IV.SSY.HHZ. 2018-01-12T11:14:21.63 0.6 undecidable manual S 126 114.3966 54 0.26 0
IV.HAGA.HHZ. 2018-01-12T11:14:21.26 0.6 undecidable manual S 118 112.8981 54 0.22 0
IV.HLNI.HHZ. 2018-01-12T11:14:15.12 0.3 undecidable manual S 121 87.7455 54 -0.5 9
IV.CORL.HHE. 2018-01-12T11:14:11.12 0.6 undecidable manual S 283 64.5909 54 0.49 37
IV.SOLUN.HHN. 2018-01-12T11:14:09.17 0.3 undecidable manual S 311 56.2992 120 0.43 66
IV.HAGA.HHZ. 2018-01-12T11:14:07.04 0.3 undecidable manual P 118 112.8981 54 -0.62 0
IV.SSY.HHZ. 2018-01-12T11:14:07.37 0.3 undecidable manual P 126 114.3966 54 -0.47 0
IV.HMDC.HHZ. 2018-01-12T11:14:06.96 0.3 undecidable manual P 143 111.5994 54 -0.54 0
IV.MMGO.HHZ. 2018-01-12T11:14:05.09 0.3 undecidable manual P 263 92.4408 54 -0.02 4
IV.MUCR.HHZ. 2018-01-12T11:14:04.21 0.3 undecidable manual P 67 80.7636 54 0.55 21
IV.ESML.HHZ. 2018-01-12T11:14:03.77 0.6 undecidable manual P 102 76.9674 54 0.58 19
IV.PLLN.EHZ. 2018-01-12T11:14:03.20 0.3 undecidable manual S 23 27.5502 141 0.4 70
IV.HLNI.HHZ. 2018-01-12T11:14:03.59 0.1 positive manual P 121 87.7455 54 -0.94 10
IV.GIB.HHZ. 2018-01-12T11:14:02.60 0.3 undecidable manual S 1 25.1526 143 0.19 73
IV.MPG.SHZ. 2018-01-12T11:14:02.07 1.0 undecidable manual P 308 72.8715 54 -0.61 13
IV.ALJA.HHZ. 2018-01-12T11:14:02.30 0.6 undecidable manual S 266 23.5542 145 0.14 49
IV.PETRA.HHZ. 2018-01-12T11:14:01.00 0.6 undecidable manual S 46 11.2776 162 0.32 48
IV.CORL.HHE. 2018-01-12T11:14:01.74 0.6 undecidable manual P 283 64.5909 54 0.09 40
IV.CSLB.HHZ. 2018-01-12T11:14:01.60 0.6 undecidable manual S 9 19.5693 150 0.01 51
IV.MSFR.HHZ. 2018-01-12T11:14:00.97 1.0 undecidable manual P 59 58.1973 119 0.16 23
IV.SOLUN.HHN. 2018-01-12T11:14:00.24 0.1 undecidable manual P 311 56.2992 120 -0.31 92
IV.RESU.HHZ. 2018-01-12T11:14:00.90 0.3 undecidable manual S 167 13.2756 159 0.04 76
IV.GALF.HHZ. 2018-01-12T11:13:59.83 0.6 undecidable manual P 97 48.1185 124 0.35 48
IV.CAGR.HHE. 2018-01-12T11:13:59.71 0.6 undecidable manual P 110 44.7219 126 0.65 44
IV.GIB.HHZ. 2018-01-12T11:13:56.63 0.1 negative manual P 1 25.1526 143 -0.27 96
IV.RESU.HHZ. 2018-01-12T11:13:56.09 0.1 negative manual P 167 13.2756 159 0.09 100
IV.ALJA.HHZ. 2018-01-12T11:13:56.52 0.1 negative manual P 266 23.5542 145 -0.23 97
IV.PLLN.EHZ. 2018-01-12T11:13:56.92 0.1 negative manual P 23 27.5502 141 -0.2 97
IV.PETRA.HHZ. 2018-01-12T11:13:55.53 0.1 undecidable manual P 46 11.2776 162 -0.37 94
IV.CSLB.HHZ. 2018-01-12T11:13:55.94 0.1 negative manual P 9 19.5693 150 -0.48 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSLB.HHN. ML:2.1 0.00045011 0.48 AML other m 2018-01-12T11:14:02.12
IV.PETRA.HHN. ML:2.5 0.0012483982 0.3584 AML other m 2018-01-12T11:14:01.99
IV.ALJA.HHE. ML:2.0 0.00033499999999999996 0.38 AML other m 2018-01-12T11:14:02.75
IV.PETRA.HHE. ML:2.5 0.0013241170000000003 0.64 AML other m 2018-01-12T11:14:02.73
IV.GIB.HHN. ML:2.4 0.0008448917499999999 0.576 AML other m 2018-01-12T11:14:03.66
IV.GIB.HHE. ML:2.2 0.0005907493 0.4608 AML other m 2018-01-12T11:14:03.48
IV.CSLB.HHE. ML:2.0 0.0003353513 0.48 AML other m 2018-01-12T11:14:03.62
IV.RESU.HHN. ML:2.4 0.0010135 0.7 AML other m 2018-01-12T11:14:04.16
IV.RESU.HHE. ML:2.2 0.0006065 0.38 AML other m 2018-01-12T11:14:04.73
IV.PLLN.EHE. ML:2.8 0.001665 0.6 AML other m 2018-01-12T11:14:04.73
IV.ALJA.HHN. ML:2.1 0.00044099999999999993 1.6 AML other m 2018-01-12T11:14:05.02
IV.PLLN.EHN. ML:2.8 0.00182 0.38 AML other m 2018-01-12T11:14:05.86
IV.MSFR.HHE. ML:1.7 0.000081827415 0.6592 AML other m 2018-01-12T11:14:12.12
IV.MSFR.HHN. ML:1.8 0.0001088 0.42 AML other m 2018-01-12T11:14:12.85
IV.HLNI.HHN. ML:2.2 0.0001569633 0.2752 AML other m 2018-01-12T11:14:15.68
IV.ESML.HHE. ML:2.2 0.00020975910000000004 0.32 AML other m 2018-01-12T11:14:16.34
IV.ESML.HHN. ML:2.3 0.0002359311 0.2816 AML other m 2018-01-12T11:14:16.71
IV.HLNI.HHE. ML:2.2 0.000191 1.54 AML other m 2018-01-12T11:14:17.19
IV.MUCR.HHE. ML:2.3 0.00023095840000000002 0.4416 AML other m 2018-01-12T11:14:19.83
IV.HMDC.HHN. ML:2.8 0.0004665 0.86 AML other m 2018-01-12T11:14:22.11
IV.MUCR.HHN. ML:2.3 0.0002302632 0.5376 AML other m 2018-01-12T11:14:22.13
IV.HAGA.HHN. ML:2.5 0.000229267575 0.2368 AML other m 2018-01-12T11:14:22.16
IV.HMDC.HHE. ML:2.8 0.0004745 0.34 AML other m 2018-01-12T11:14:22.16
IV.HAGA.HHE. ML:2.4 0.00017366925 0.224 AML other m 2018-01-12T11:14:22.30
IV.SSY.HHE. ML:2.5 0.0002425181 0.3392 AML other m 2018-01-12T11:14:22.96
IV.SSY.HHN. ML:2.9 0.0006585000000000001 1.52 AML other m 2018-01-12T11:14:25.81
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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