Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 23-05-2015 and time 17:10:19 (UTC) in region 4 km SE Maletto (CT)

A magnitude ML 2.3 earthquake occured in region: 4 km SE Maletto (CT), on

  • 23-05-2015 17:10:19 (UTC)
  • 23-05-2015 19:10:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8050, 14.8910 at 28 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 4 3920 3920
Bronte CT 5 19172 23092
Randazzo CT 10 10900 33992
Maniace CT 10 3765 37757
Santa Domenica Vittoria ME 14 980 38737
Cesarò ME 16 2439 41176
Adrano CT 17 36122 77298
San Teodoro ME 18 1403 78701
Moio Alcantara ME 18 717 79418
Roccella Valdemone ME 18 666 80084
Biancavilla CT 18 24007 104091
Malvagna ME 19 733 104824
Ragalna CT 20 3924 108748

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Acireale (52622 inhabitants)
38 Km NW of Catania (314555 inhabitants)
73 Km SW of Messina (238439 inhabitants)
74 Km W of Reggio di Calabria (183035 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
90 Km NW of Siracusa (122291 inhabitants)
99 Km N of Ragusa (73313 inhabitants)
100 Km NE of Gela (75827 inhabitants)
100 Km N of Vittoria (63339 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 2015-05-23
17:10:19		 37.8053 14.8912 28 2016-01-08
08:44:50		 Bollettino Sismico Italiano INGV 22266771
Reviewed
Rev100 		ML 2.3 2015-05-23
17:10:19		 37.8002 14.8763 27 2015-05-23
17:28:20		 Sala Sismica INGV-Roma 19307041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-05-23 17:10:19 ± 0.09
Latitude 37.8053 ± 0.0036
Longitude 14.8912 ± 0.0057
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 22266771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 526
Semi-minor axis of confidence ellipse (meter) 179
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 93
Circular confidence region, given by single value of horizontal uncertainty (meter) 530.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.78965
Number of stations at which the event was observed 36
Number of stations from which data was used for origin computation 31
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 22266771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-11-26 13:39:04

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 25
Type of magnitude ML
Reference to an origin 19307041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-05-23 17:28:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2015-05-23T17:11:11.96 3.0 undecidable manual S 198.6567 0.82 0
IV.JOPP.HHZ. 2015-05-23T17:10:56.08 3.0 undecidable manual S 125.7741 0.68 0
IV.CAR1.HHZ. 2015-05-23T17:10:49.29 3.0 undecidable manual P 198.6567 0.01 0
IV.HMDC.HHZ. 2015-05-23T17:10:47.60 0.3 undecidable manual S 186 94.3389 102 0.23 62
IV.MEU.SHZ. 2015-05-23T17:10:43.21 0.3 undecidable manual S 184 77.1672 105 0.31 63
IV.JOPP.HHZ. 2015-05-23T17:10:40.09 3.0 undecidable manual P 125.7741 -0.1 0
IV.AGST.EHZ. 2015-05-23T17:10:40.47 0.3 undecidable manual S 154 67.6767 107 0.01 68
IV.HAGA.HHZ. 2015-05-23T17:10:39.18 0.3 undecidable manual S 158 62.1933 108 0.12 68
IV.MPAZ.HHZ. 2015-05-23T17:10:36.76 0.3 undecidable manual P 80 99.0231 101 0.57 57
IV.HLNI.HHZ. 2015-05-23T17:10:36.46 0.3 undecidable manual S 182 50.7159 113 0.27 67
IV.GMB.BHZ. 2015-05-23T17:10:35.78 3.0 undecidable manual P 0.41 0
IV.HMDC.HHZ. 2015-05-23T17:10:35.10 0.3 undecidable manual P 186 94.3389 102 -0.39 60
IV.HAVL.HHZ. 2015-05-23T17:10:35.23 0.3 undecidable manual P 168 96.0261 101 -0.5 59
IV.IACL.HHZ. 2015-05-23T17:10:35.05 0.3 undecidable manual P 330 93.24 102 -0.27 62
IV.IFIL.HHN. 2015-05-23T17:10:34.27 0.3 undecidable manual P 342 88.5447 102 -0.34 61
IV.MCSR.HHZ. 2015-05-23T17:10:34.36 0.6 undecidable manual S 46 41.3253 118 0.44 44
IV.GIB.HHE. 2015-05-23T17:10:33.56 0.3 undecidable manual P 285 78.4659 104 0.46 61
IV.AIO.HHZ. 2015-05-23T17:10:33.31 3.0 undecidable manual S 36.9297 0.44 0
IV.RAFF.HHZ. 2015-05-23T17:10:33.29 0.3 undecidable manual P 216 79.6647 104 0.01 67
IV.HVZN.HHE. 2015-05-23T17:10:32.40 0.3 undecidable manual P 193 71.2731 106 0.37 63
IV.MSRU.HHZ. 2015-05-23T17:10:32.90 0.3 undecidable manual P 46 74.1702 105 0.45 62
IV.CSLB.HHZ. 2015-05-23T17:10:32.72 0.3 undecidable manual P 282 74.4699 105 0.22 64
IV.NOV.HHZ. 2015-05-23T17:10:32.32 0.3 undecidable manual S 41 32.745 125 0.35 68
IV.MTTG.HHE. 2015-05-23T17:10:32.73 0.6 undecidable manual P 73 74.0703 105 0.28 43
IV.MSFR.HHZ. 2015-05-23T17:10:32.72 0.3 undecidable manual S 314 36.4413 122 -0.09 71
IV.PETRA.HHN. 2015-05-23T17:10:32.14 0.3 undecidable manual P 273 68.0763 107 0.58 59
IV.MEU.SHZ. 2015-05-23T17:10:32.45 0.3 undecidable manual P 184 77.1672 105 -0.46 61
IV.SSY.HHZ. 2015-05-23T17:10:32.14 0.3 undecidable manual P 167 73.6707 105 -0.24 65
IV.IVPL.HHZ. 2015-05-23T17:10:31.06 0.3 undecidable manual P 7 63.7917 108 0.13 67
IV.AGST.EHZ. 2015-05-23T17:10:31.10 0.1 undecidable manual P 154 67.6767 107 -0.4 84
IV.MNO.SHZ. 2015-05-23T17:10:30.05 0.3 undecidable manual S 309 22.1556 138 0.21 71
IV.MILZ.HHE. 2015-05-23T17:10:30.45 0.3 undecidable manual P 30 59.5959 109 0.13 68
IV.HAGA.HHZ. 2015-05-23T17:10:30.36 0.1 undecidable manual P 158 62.1933 108 -0.34 86
IV.MUCR.HHZ. 2015-05-23T17:10:30.11 0.6 undecidable manual S 357 26.3514 132 -0.55 43
IV.MPNC.HHZ. 2015-05-23T17:10:29.88 0.1 undecidable manual P 47 55.3002 111 0.18 90
IV.EMSG.HHZ. 2015-05-23T17:10:28.17 0.3 undecidable manual S 72 5.3946 168 0.43 70
IV.HLNI.HHZ. 2015-05-23T17:10:28.66 0.1 undecidable manual P 182 50.7159 113 -0.38 87
IV.CAGR.HHE. 2015-05-23T17:10:28.72 0.3 undecidable manual P 239 39.9267 119 1.18 48
IV.EPOZ.HHZ. 2015-05-23T17:10:27.09 3.0 undecidable manual P 0.63 0
IV.EPZF.HHZ. 2015-05-23T17:10:27.76 0.3 undecidable manual S 305 3.5964 172 0.1 75
IV.MCSR.HHZ. 2015-05-23T17:10:27.68 0.1 undecidable manual P 46 41.3253 118 -0.05 95
IV.GALF.HHZ. 2015-05-23T17:10:26.25 0.1 undecidable manual P 250 30.3474 128 -0.06 97
IV.AIO.HHZ. 2015-05-23T17:10:26.79 3.0 undecidable manual P 36.9297 -0.4 0
IV.NOV.HHZ. 2015-05-23T17:10:26.49 0.1 undecidable manual P 41 32.745 125 -0.11 95
IV.MSFR.HHZ. 2015-05-23T17:10:26.73 0.1 undecidable manual P 314 36.4413 122 -0.35 90
IV.ESML.HHZ. 2015-05-23T17:10:25.27 0.3 undecidable manual P 183 20.7681 139 0.03 74
IV.MNO.SHZ. 2015-05-23T17:10:25.06 0.1 undecidable manual P 309 22.1556 138 -0.31 93
IV.MUCR.HHZ. 2015-05-23T17:10:25.33 0.1 undecidable manual P 357 26.3514 132 -0.51 88
IV.EMSG.HHZ. 2015-05-23T17:10:24.06 0.1 undecidable manual P 72 5.3946 168 -0.1 100
IV.ESLN.HHZ. 2015-05-23T17:10:24.69 0.1 undecidable manual P 150 14.3745 150 0.03 100
IV.EPZF.HHZ. 2015-05-23T17:10:23.75 0.1 undecidable manual P 305 3.5964 172 -0.36 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.AGST.EHN. ML:2.5 0.000463 1.06 AML other m 2015-05-23T17:10:41.11
IV.AGST.EHE. ML:2.4 0.00035850000000000004 0.92 AML other m 2015-05-23T17:10:41.51
IV.AIO.HHE. ML:2.1 0.00036899999999999997 0.56 AML other m 2015-05-23T17:10:33.80
IV.AIO.HHN. ML:2.0 0.00034750000000000004 0.2 AML other m 2015-05-23T17:10:34.66
IV.EMSG.HHN. ML:3.0 0.00621 0.44 AML other m 2015-05-23T17:10:28.43
IV.EMSG.HHE. ML:2.8 0.0038 0.94 AML other m 2015-05-23T17:10:30.24
IV.EPOZ.HHN. ML:2.3 0.000776 0.44 AML other m 2015-05-23T17:10:35.18
IV.EPOZ.HHE. ML:2.3 0.000749 0.92 AML other m 2015-05-23T17:10:34.68
IV.EPZF.HHE. ML:2.8 0.0038 0.88 AML other m 2015-05-23T17:10:28.49
IV.EPZF.HHN. ML:3.2 0.01009 0.4 AML other m 2015-05-23T17:10:28.53
IV.ESLN.HHE. ML:2.4 0.0011519999999999998 1.32 AML other m 2015-05-23T17:10:37.49
IV.ESLN.HHN. ML:2.1 0.000662 0.66 AML other m 2015-05-23T17:10:53.29
IV.GALF.HHN. ML:2.4 0.0008745000000000001 0.4 AML other m 2015-05-23T17:10:34.48
IV.GALF.HHE. ML:2.4 0.0009670000000000001 0.4 AML other m 2015-05-23T17:10:34.82
IV.GMB.BHN. ML:2.6 0.0003815 1.56 AML other m 2015-05-23T17:10:53.30
IV.GMB.BHE. ML:2.4 0.000249 0.4 AML other m 2015-05-23T17:10:55.56
IV.HAGA.HHE. ML:2.3 0.00033699999999999995 0.24 AML other m 2015-05-23T17:10:39.64
IV.HAGA.HHN. ML:2.4 0.00040300000000000004 0.34 AML other m 2015-05-23T17:10:39.51
IV.HAVL.HHE. ML:2.3 0.0001955 0.7 AML other m 2015-05-23T17:10:52.14
IV.HAVL.HHN. ML:2.4 0.00027150000000000004 0.96 AML other m 2015-05-23T17:10:55.93
IV.HLNI.HHN. ML:2.5 0.000741 0.2 AML other m 2015-05-23T17:10:36.64
IV.HLNI.HHE. ML:2.3 0.000486 0.46 AML other m 2015-05-23T17:10:36.62
IV.HMDC.HHE. ML:2.4 0.000257 1.04 AML other m 2015-05-23T17:10:48.17
IV.HMDC.HHN. ML:2.4 0.00026700000000000004 0.44 AML other m 2015-05-23T17:10:48.51
IV.IVPL.HHE. ML:2.7 0.0009044999999999999 0.56 AML other m 2015-05-23T17:10:46.48
IV.IVPL.HHN. ML:2.7 0.0009165 0.98 AML other m 2015-05-23T17:10:44.07
IV.JOPP.HHN. ML:2.0 0.00007215 1.52 AML other m 2015-05-23T17:10:57.46
IV.JOPP.HHE. ML:1.9 0.00004975 1.58 AML other m 2015-05-23T17:11:00.02
IV.MCSR.HHN. ML:2.7 0.001295 0.3 AML other m 2015-05-23T17:10:35.08
IV.MCSR.HHE. ML:2.6 0.0009755 0.3 AML other m 2015-05-23T17:10:36.68
IV.MEU.SHE. ML:0.0 0.00045850000000000003 1.12 AML other m 2015-05-23T17:10:43.41
IV.MEU.SHN. ML:0.0 0.000805 0.24 AML other m 2015-05-23T17:10:43.45
IV.MNO.SHN. ML:0.0 0.0010205000000000001 0.6 AML other m 2015-05-23T17:10:30.18
IV.MNO.SHE. ML:0.0 0.0007244999999999999 0.28 AML other m 2015-05-23T17:10:31.62
IV.MPAZ.HHN. ML:2.1 0.000111 0.32 AML other m 2015-05-23T17:10:54.35
IV.MPAZ.HHE. ML:1.8 0.00006594999999999999 0.4 AML other m 2015-05-23T17:10:56.19
IV.MPNC.HHE. ML:2.3 0.00043599999999999997 0.26 AML other m 2015-05-23T17:10:40.45
IV.MPNC.HHN. ML:2.3 0.000428 0.6 AML other m 2015-05-23T17:10:43.46
IV.MSFR.HHE. ML:2.0 0.000337 0.4 AML other m 2015-05-23T17:10:32.87
IV.MSFR.HHN. ML:1.9 0.000248 1.52 AML other m 2015-05-23T17:10:34.54
IV.MSRU.HHE. ML:2.4 0.000377 0.52 AML other m 2015-05-23T17:10:46.91
IV.MSRU.HHN. ML:2.4 0.0003135 0.8 AML other m 2015-05-23T17:10:46.44
IV.MUCR.HHE. ML:2.1 0.0005024999999999999 0.56 AML other m 2015-05-23T17:10:30.89
IV.MUCR.HHN. ML:2.3 0.0008435000000000001 0.44 AML other m 2015-05-23T17:10:30.81
IV.NOV.HHE. ML:2.2 0.000503 1.06 AML other m 2015-05-23T17:10:33.41
IV.NOV.HHN. ML:2.4 0.0008145 0.34 AML other m 2015-05-23T17:10:32.76
IV.RAFF.HHN. ML:1.9 0.00009725 0.94 AML other m 2015-05-23T17:10:51.59
IV.RAFF.HHE. ML:2.1 0.0001505 0.74 AML other m 2015-05-23T17:10:46.55
IV.SSY.HHE. ML:2.3 0.00027749999999999997 0.3 AML other m 2015-05-23T17:10:46.60
IV.SSY.HHN. ML:2.7 0.0006935 0.18 AML other m 2015-05-23T17:10:49.22
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
Waveforms Seismic signals in miniseed + resp format Download