Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 13-04-2018 and time 22:59:21 (Italy) in region 2 km W Adrano (CT)

A magnitude ML 2.3 earthquake occured in region: 2 km W Adrano (CT), on

  • 13-04-2018 20:59:21 (UTC)
  • 13-04-2018 22:59:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6620, 14.8160 at 23 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
Adrano CT 2 36122 36122
Biancavilla CT 5 24007 60129
Centuripe EN 8 5470 65599
Santa Maria di Licodia CT 8 7641 73240
Ragalna CT 12 3924 77164
Paternò CT 12 48228 125392
Bronte CT 14 19172 144564
Catenanuova EN 15 4866 149430
Regalbuto EN 15 7277 156707
Belpasso CT 16 28108 184815
Maletto CT 19 3920 188735
Nicolosi CT 19 7463 196198
Camporotondo Etneo CT 20 5023 201221

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Catania (314555 inhabitants)
31 Km W of Acireale (52622 inhabitants)
69 Km E of Caltanissetta (63360 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
82 Km N of Ragusa (73313 inhabitants)
83 Km NE of Gela (75827 inhabitants)
83 Km N of Vittoria (63339 inhabitants)
88 Km SW of Messina (238439 inhabitants)
88 Km SW of Reggio di Calabria (183035 inhabitants)
89 Km N of Modica (54633 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 2018-04-13
20:59:21		 37.662 14.8157 23 2019-04-24
14:49:35		 Bollettino Sismico Italiano INGV 57523381
Reviewed
Rev200 		ML 1.9 2018-04-13
20:59:22		 37.664 14.859 15 2019-02-20
15:51:40		 Sala Operativa INGV-OE (Catania) 55599711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-13 20:59:21 ± 0.16
Latitude 37.6620 ± 0.0054
Longitude 14.8157 ± 0.0125
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 57523381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 888
Semi-minor axis of confidence ellipse (meter) 625
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.36
Epicentral distance of station closest to the epicenter (degree) 0.06655
Epicentral distance of station farthest from the epicenter (degree) 0.96947
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 57523381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-02-20 15:53:06

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 55599711
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-04-14 08:04:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2018-04-13T20:59:41.25 0.3 undecidable manual S 158 60.3951 104 0.52 68
IV.HPAC.HHZ. 2018-04-13T20:59:39.78 0.3 undecidable manual P 169 107.6145 97 -0.09 68
IV.AIO.HHZ. 2018-04-13T20:59:38.31 0.3 undecidable manual S 47 50.1165 107 0.21 73
IV.HAGA.HHZ. 2018-04-13T20:59:38.61 0.3 undecidable manual S 144 51.4152 107 0.19 74
IV.MUCR.HHZ. 2018-04-13T20:59:36.38 0.3 undecidable manual S 7 42.5241 111 0.19 75
IV.MILZ.HHZ. 2018-04-13T20:59:35.71 0.6 undecidable manual P 28 76.7676 101 0.53 43
IV.HMDC.HHZ. 2018-04-13T20:59:35.34 0.3 undecidable manual P 182 78.0663 100 -0.03 73
IV.EPOZ.HHZ. 2018-04-13T20:59:34.33 0.6 undecidable manual S 88 32.745 118 0.52 47
IV.MPNC.HHZ. 2018-04-13T20:59:34.22 0.3 undecidable manual P 41 71.373 102 -0.15 72
IV.HLNI.HHZ. 2018-04-13T20:59:34.76 0.3 undecidable manual S 172 35.1426 116 0.39 74
IV.RAFF.HHZ. 2018-04-13T20:59:33.76 0.3 undecidable manual P 219 62.9925 103 0.65 65
IV.SSY.HHZ. 2018-04-13T20:59:32.59 0.1 positive manual P 158 60.3951 104 -0.12 99
IV.EPZF.HHZ. 2018-04-13T20:59:31.14 0.3 undecidable manual S 11 18.3705 136 0.43 75
IV.HAGA.HHZ. 2018-04-13T20:59:31.00 0.1 negative manual P 144 51.4152 107 -0.38 95
IV.AIO.HHZ. 2018-04-13T20:59:30.96 0.1 negative manual P 47 50.1165 107 -0.23 99
IV.ESLN.HHZ. 2018-04-13T20:59:30.88 0.3 undecidable manual S 76 14.3745 144 0.85 64
IV.MUCR.HHZ. 2018-04-13T20:59:29.93 0.3 undecidable manual P 7 42.5241 111 -0.16 76
IV.CAGR.HHZ. 2018-04-13T20:59:29.66 1.0 undecidable manual P 261 28.0497 123 1.56 15
IV.EPOZ.HHZ. 2018-04-13T20:59:28.67 0.3 negative manual P 88 32.745 118 -0.04 79
IV.HLNI.HHZ. 2018-04-13T20:59:28.76 0.1 positive manual P 172 35.1426 116 -0.28 100
IV.ESML.HHZ. 2018-04-13T20:59:28.30 0.3 undecidable manual S 131 7.3815 160 -0.86 64
IV.GALF.HHZ. 2018-04-13T20:59:27.62 0.3 undecidable manual P 284 22.5552 130 0.22 78
IV.ESLN.HHZ. 2018-04-13T20:59:26.18 0.3 negative manual P 76 14.3745 144 -0.36 77
IV.EPZF.HHZ. 2018-04-13T20:59:26.47 0.3 positive manual P 11 18.3705 136 -0.46 74
IV.EMSG.HHZ. 2018-04-13T20:59:26.94 0.3 undecidable manual P 34 21.1677 132 -0.31 76
IV.ESML.HHZ. 2018-04-13T20:59:25.55 0.1 positive manual P 131 7.3815 160 -0.48 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHE. ML:2.4 0.00159 1.24 AML other m 2018-04-13T20:59:30.22
IV.ESML.HHN. ML:2.3 0.0014100000000000002 0.88 AML other m 2018-04-13T20:59:30.47
IV.ESLN.HHN. ML:2.3 0.0011200000000000001 1.5 AML other m 2018-04-13T20:59:31.20
IV.EPZF.HHE. ML:2.3 0.0011065 0.42 AML other m 2018-04-13T20:59:32.60
IV.EPZF.HHN. ML:2.5 0.0017050000000000001 0.46 AML other m 2018-04-13T20:59:33.40
IV.ESLN.HHE. ML:2.4 0.0014299999999999998 0.9 AML other m 2018-04-13T20:59:34.97
IV.HLNI.HHN. ML:2.4 0.0009159999999999999 0.98 AML other m 2018-04-13T20:59:35.06
IV.HLNI.HHE. ML:2.2 0.0005380000000000001 0.58 AML other m 2018-04-13T20:59:35.65
IV.EMSG.HHE. ML:2.3 0.001012 1.5 AML other m 2018-04-13T20:59:35.98
IV.MUCR.HHE. ML:2.1 0.0003205 1.44 AML other m 2018-04-13T20:59:36.19
IV.EPOZ.HHE. ML:2.5 0.0011949999999999999 0.7 AML other m 2018-04-13T20:59:36.59
IV.EPOZ.HHN. ML:2.5 0.001135 1.18 AML other m 2018-04-13T20:59:37.38
IV.MUCR.HHN. ML:1.8 0.0001965 0.44 AML other m 2018-04-13T20:59:38.31
IV.CAGR.HHE. ML:2.3 0.000851 0.7 AML other m 2018-04-13T20:59:38.55
IV.CAGR.HHN. ML:2.1 0.0005855 0.48 AML other m 2018-04-13T20:59:38.39
IV.EMSG.HHN. ML:2.4 0.0012850000000000001 0.5 AML other m 2018-04-13T20:59:38.65
IV.AIO.HHE. ML:2.0 0.0002385 0.4 AML other m 2018-04-13T20:59:38.70
IV.HAGA.HHE. ML:2.2 0.00035999999999999997 1 AML other m 2018-04-13T20:59:39.92
IV.AIO.HHN. ML:2.0 0.000219 0.52 AML other m 2018-04-13T20:59:40.63
IV.SSY.HHE. ML:2.3 0.00035350000000000003 1.66 AML other m 2018-04-13T20:59:42.91
IV.HAGA.HHN. ML:2.3 0.00044 0.34 AML other m 2018-04-13T20:59:42.36
IV.SSY.HHN. ML:2.7 0.0009585000000000002 0.56 AML other m 2018-04-13T20:59:43.60
IV.MPNC.HHE. ML:2.2 0.00022199999999999998 0.88 AML other m 2018-04-13T20:59:47.85
IV.MILZ.HHN. ML:2.2 0.0002455 0.5 AML other m 2018-04-13T20:59:47.58
IV.MILZ.HHE. ML:2.1 0.0001875 0.94 AML other m 2018-04-13T20:59:48.44
IV.HMDC.HHE. ML:2.1 0.0001735 0.66 AML other m 2018-04-13T20:59:49.36
IV.HMDC.HHN. ML:2.2 0.000219 0.34 AML other m 2018-04-13T20:59:49.22
IV.MPNC.HHN. ML:2.2 0.00024249999999999999 0.48 AML other m 2018-04-13T20:59:50.58
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