Earthquake with magnitude of ML 2.3 on date 18-10-2012 and time 01:36:22 (Italy) in region Costa Agrigentina (Agrigento)

A magnitude ML 2.3 earthquake occured in region: Costa Agrigentina (Agrigento), on

  • 17-10-2012 23:36:22 (UTC)
  • 18-10-2012 01:36:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.3520, 13.0060 at 2 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
Sciacca AG 19 40928 40928

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km SE of Mazara del Vallo (51718 inhabitants)
51 Km W of Agrigento (59770 inhabitants)
71 Km SE of Marsala (83194 inhabitants)
86 Km SE of Trapani (68759 inhabitants)
91 Km SW of Palermo (674435 inhabitants)
92 Km SW of Bagheria (55387 inhabitants)
95 Km W of Caltanissetta (63360 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 2012-10-17
23:36:22
37.3522 13.0062 2 2014-09-19
08:14:18
Bollettino Sismico Italiano INGV 3049141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-10-17 23:36:22 ± 0.33
Latitude 37.3522 ± 0.0135
Longitude 13.0062 ± 0.0226
Depth (km) 2 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 3049141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2150
Semi-minor axis of confidence ellipse (meter) 1350
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 2150.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.55
Epicentral distance of station closest to the epicenter (degree) 0.28059
Epicentral distance of station farthest from the epicenter (degree) 1.65565
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 3049141
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2014-09-18 12:45:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2012-10-17T23:36:53.08 0.1 undecidable manual P 64 180.9855 50 -0.06 71
IV.SSY.HHZ. 2012-10-17T23:36:52.30 0.3 undecidable manual P 96 183.7827 50 -1.28 34
IV.HCRL.HHZ. 2012-10-17T23:36:51.73 0.1 undecidable manual P 92 178.8876 50 -1.09 50
IV.MEU.SHE. 2012-10-17T23:36:51.18 1.0 undecidable manual P 99 163.3143 50 0.77 16
IV.HMDC.HHE. 2012-10-17T23:36:50.31 0.3 undecidable manual P 105 163.0146 50 -0.06 58
IV.GALF.HHZ. 2012-10-17T23:36:49.17 0.6 undecidable manual P 73 142.9458 50 1.9 18
IV.HVZN.HHZ. 2012-10-17T23:36:49.08 0.3 undecidable manual P 97 152.1366 50 0.39 57
IV.HLNI.HHZ. 2012-10-17T23:36:49.46 0.1 undecidable manual P 90 164.5131 50 -1.14 53
IV.PLLN.SHZ. 2012-10-17T23:36:44.27 0.3 undecidable manual P 54 122.4885 50 0.14 64
IV.CORL.HHZ. 2012-10-17T23:36:44.30 0.1 undecidable manual S 23 65.5899 50 -0.34 92
IV.PETRA.HHZ. 2012-10-17T23:36:43.28 0.3 undecidable manual P 61 111.0999 50 0.91 51
IV.GIB.HHE. 2012-10-17T23:36:42.95 0.1 undecidable manual P 51 114.0969 50 0.12 87
IV.PTMD.HHE. 2012-10-17T23:36:41.34 0.6 undecidable manual P 235 109.3128 50 -0.75 37
IV.MPG.SHZ. 2012-10-17T23:36:40.55 0.6 undecidable manual P 19 95.0382 50 0.66 39
IV.ALJA.HHZ. 2012-10-17T23:36:38.55 0.1 undecidable manual P 56 79.1652 50 1.11 66
IV.CORL.HHZ. 2012-10-17T23:36:35.55 0.3 undecidable manual P 23 65.5899 50 0.19 71
IV.MMGO.SHZ. 2012-10-17T23:36:34.30 0.1 undecidable manual S 356 34.4433 93 -0.35 97
IV.CRJA.SHZ. 2012-10-17T23:36:33.03 0.1 undecidable manual P 360 49.8168 92 0.37 94
MN.CLTB.HHZ. 2012-10-17T23:36:32.32 0.3 undecidable manual S 36 31.1466 94 -1.17 53
IV.MMGO.SHZ. 2012-10-17T23:36:30.38 0.1 undecidable manual P 356 34.4433 93 0.8 83
IV.CAVT.SHZ. 2012-10-17T23:36:30.38 0.3 undecidable manual P 329 42.4242 93 -0.79 62
MN.CLTB.HHZ. 2012-10-17T23:36:29.14 0.1 undecidable manual P 36 31.1466 94 0.23 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ALJA.HHN. ML:2.0 0.0001275 1.44 AML other m 2012-10-17T23:36:51.54
IV.ALJA.HHE. ML:1.7 0.00007675 0.36 AML other m 2012-10-17T23:36:52.08
MN.CLTB.HHN. ML:3.1 0.005730000000000001 0.4 AML other m 2012-10-17T23:36:32.94
MN.CLTB.HHE. ML:2.9 0.0038 0.6 AML other m 2012-10-17T23:36:34.96
IV.CORL.HHN. ML:2.1 0.00021600000000000002 0.28 AML other m 2012-10-17T23:36:44.79
IV.CORL.HHE. ML:2.2 0.0003 0.8 AML other m 2012-10-17T23:36:45.24
IV.GIB.HHE. ML:2.1 0.0001123 0.62 AML other m 2012-10-17T23:36:58.58
IV.GIB.HHN. ML:2.1 0.0001105 1.4 AML other m 2012-10-17T23:37:01.94
IV.HAVL.HHN. ML:2.8 0.0002065 1.58 AML other m 2012-10-17T23:37:19.04
IV.HAVL.HHE. ML:2.6 0.0001237 1.58 AML other m 2012-10-17T23:37:49.26
IV.HCRL.HHN. ML:2.4 0.0001012 1.56 AML other m 2012-10-17T23:37:00.92
IV.HCRL.HHE. ML:2.4 0.0000864 1.58 AML other m 2012-10-17T23:37:14.38
IV.HLNI.HHE. ML:2.3 0.00008935 1.58 AML other m 2012-10-17T23:37:09.28
IV.HLNI.HHN. ML:2.3 0.00007885 0.36 AML other m 2012-10-17T23:37:08.84
IV.PETRA.HHN. ML:1.9 0.00006055 1.54 AML other m 2012-10-17T23:37:06.01
IV.PETRA.HHE. ML:1.8 0.000060049999999999996 1.58 AML other m 2012-10-17T23:37:10.77
IV.SSY.HHE. ML:2.5 0.0001225 1.58 AML other m 2012-10-17T23:37:28.32
IV.SSY.HHN. ML:2.8 0.00020649999999999998 1.56 AML other m 2012-10-17T23:37:19.99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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