Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 09-07-2021 and time 11:45:17 (Italy) in region 5 km S Randazzo (CT)

A magnitude ML 2.2 earthquake occured in region: 5 km S Randazzo (CT), on

  • 09-07-2021 09:45:17 (UTC)
  • 09-07-2021 11:45:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.8360, 14.9420 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
Randazzo CT 5 10900 10900
Maletto CT 7 3920 14820
Santa Domenica Vittoria ME 9 980 15800
Bronte CT 11 19172 34972
Moio Alcantara ME 12 717 35689
Maniace CT 12 3765 39454
Roccella Valdemone ME 13 666 40120
Malvagna ME 14 733 40853
Castiglione di Sicilia CT 17 3215 44068
Floresta ME 17 485 44553
Linguaglossa CT 18 5403 49956
Francavilla di Sicilia ME 19 3945 53901
Milo CT 20 1087 54988

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km NW of Acireale (52622 inhabitants)
39 Km NW of Catania (314555 inhabitants)
67 Km SW of Messina (238439 inhabitants)
69 Km W of Reggio di Calabria (183035 inhabitants)
86 Km E of Caltanissetta (63360 inhabitants)
92 Km NW of Siracusa (122291 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 2.2 2021-07-09
09:45:17		 37.8357 14.9418 28 2021-12-29
11:12:13		 Bollettino Sismico Italiano INGV 93100111
Reviewed
Rev200 		ML 1.9 2021-07-09
09:45:16		 37.843 14.938 24 2021-11-01
17:24:07		 Sala Operativa INGV_OE (Catania) 92485331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-09 09:45:17 ± 0.1
Latitude 37.8357 ± 0.0036
Longitude 14.9418 ± 0.0068
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 93100111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 587
Semi-minor axis of confidence ellipse (meter) 114
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 277
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.01619
Epicentral distance of station farthest from the epicenter (degree) 1.32650
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 37
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 93100111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-11-01 17:23:49

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 92485331
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-07-09 09:53:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-07-09T09:45:46.01 0.3 undecidable manual S 171 98.4237 101 -0.29 60
IV.PLAC.HHZ. 2021-07-09T09:45:42.22 0.6 undecidable manual P 62 147.2415 54 1.73 19
IV.SSY.HHZ. 2021-07-09T09:45:40.49 0.6 undecidable manual S 171 76.0683 105 0 44
IV.HVZN.HHZ. 2021-07-09T09:45:40.68 0.3 undecidable manual S 195 75.5688 105 0.32 62
IV.HAGA.HHZ. 2021-07-09T09:45:37.24 0.6 undecidable manual S 163 63.8916 108 -0.12 44
IV.HCRL.HHZ. 2021-07-09T09:45:36.78 0.6 undecidable manual S 173 61.7937 109 -0.05 45
IV.HLNI.HHZ. 2021-07-09T09:45:34.81 0.6 undecidable manual S 187 54.4011 112 -0.17 45
IV.MPNC.HHZ. 2021-07-09T09:45:34.40 0.6 undecidable manual S 46 49.8168 114 0.55 42
IV.SOI.EHZ. 2021-07-09T09:45:34.84 0.3 undecidable manual P 74 100.8213 101 0.52 57
IV.HMDC.HHZ. 2021-07-09T09:45:33.76 0.1 undecidable manual P 188 98.2239 101 -0.17 82
MN.CEL.HHZ. 2021-07-09T09:45:33.84 0.1 undecidable manual P 60 95.6376 102 0.31 80
IV.HAVL.HHZ. 2021-07-09T09:45:33.56 0.3 undecidable manual P 171 98.4237 101 -0.4 59
IV.RAFF.HHZ. 2021-07-09T09:45:32.34 0.3 undecidable manual P 217 84.9483 103 0.41 60
IV.MCPD.HHZ. 2021-07-09T09:45:31.07 0.6 undecidable manual S 330 36.5412 122 0.35 44
IV.MSFR.HHZ. 2021-07-09T09:45:30.89 0.6 undecidable manual S 306 37.7289 121 -0.1 47
IV.SSY.HHZ. 2021-07-09T09:45:30.27 0.3 undecidable manual P 171 76.0683 105 -0.33 62
IV.HVZN.HHZ. 2021-07-09T09:45:30.94 0.3 undecidable manual P 195 75.5688 105 0.41 61
IV.AIO.HHZ. 2021-07-09T09:45:29.27 0.6 undecidable manual S 59 29.5482 129 0.06 48
IV.MSRU.HHZ. 2021-07-09T09:45:29.79 0.3 undecidable manual P 46 68.5758 107 0.29 64
IV.ESAL.HHZ. 2021-07-09T09:45:28.28 0.6 undecidable manual S 118 19.0698 142 1.04 36
IV.HCRL.HHZ. 2021-07-09T09:45:28.13 0.3 undecidable manual P 173 61.7937 109 -0.37 63
IV.NOV.HHZ. 2021-07-09T09:45:28.38 0.6 undecidable manual S 39 27.2505 131 -0.37 45
IV.HAGA.HHZ. 2021-07-09T09:45:28.48 0.3 undecidable manual P 163 63.8916 108 -0.32 64
IV.HLNI.HHZ. 2021-07-09T09:45:27.07 0.1 undecidable manual P 187 54.4011 112 -0.35 86
IV.MUCR.HHZ. 2021-07-09T09:45:27.77 0.6 undecidable manual S 346 23.754 136 -0.29 46
IV.CAGR.HHZ. 2021-07-09T09:45:27.78 0.3 undecidable manual P 239 45.4212 116 1.62 36
IV.MILZ.HHZ. 2021-07-09T09:45:27.43 0.3 undecidable manual P 28 54.501 112 -0.02 69
IV.ECBD.HHN. 2021-07-09T09:45:26.81 0.6 undecidable manual S 116 14.0748 151 0.3 47
IV.ECZM.HHN. 2021-07-09T09:45:26.45 0.6 undecidable manual S 196 12.0768 155 0.19 48
IV.ESVO.HHE. 2021-07-09T09:45:26.26 0.6 undecidable manual S 176 6.993 165 0.48 45
IV.ESPC.HHN. 2021-07-09T09:45:26.73 0.6 undecidable manual S 155 17.5713 145 -0.27 47
IV.EPIT.HHZ. 2021-07-09T09:45:26.44 0.6 undecidable manual S 105 10.3785 158 0.36 46
IV.ECTS.HHZ. 2021-07-09T09:45:26.42 0.6 undecidable manual S 72 16.4724 147 -0.42 45
IV.EMNR.HHZ. 2021-07-09T09:45:26.18 0.6 undecidable manual S 106 7.6812 163 0.34 47
IV.MPNC.HHZ. 2021-07-09T09:45:26.69 0.1 undecidable manual P 46 49.8168 114 -0.08 91
IV.EMSG.HHZ. 2021-07-09T09:45:25.85 0.6 undecidable manual S 157 1.7982 176 0.3 48
IV.GALF.HHZ. 2021-07-09T09:45:25.16 0.1 undecidable manual P 247 35.742 123 0.3 89
IV.EMCN.HHN. 2021-07-09T09:45:25.95 0.6 undecidable manual S 121 9.3795 160 -0.04 50
IV.MSFR.HHZ. 2021-07-09T09:45:25.04 0.1 undecidable manual P 306 37.7289 121 -0.08 94
IV.EPZF.HHZ. 2021-07-09T09:45:25.88 0.6 undecidable manual S 260 7.5813 164 0.05 50
IV.MCPD.HHZ. 2021-07-09T09:45:24.67 0.1 undecidable manual P 330 36.5412 122 -0.29 90
IV.AIO.HHZ. 2021-07-09T09:45:23.96 0.1 positive manual P 59 29.5482 129 -0.14 94
IV.ESAL.HHZ. 2021-07-09T09:45:23.12 0.3 undecidable manual P 118 19.0698 142 0.16 72
IV.NOV.HHZ. 2021-07-09T09:45:23.56 0.1 undecidable manual P 39 27.2505 131 -0.27 92
IV.ECTS.HHZ. 2021-07-09T09:45:22.39 0.1 undecidable manual P 72 16.4724 147 -0.34 92
IV.EMPL.HHZ. 2021-07-09T09:45:22.77 0.3 undecidable manual P 172 17.5713 145 -0.05 73
IV.EMNR.HHZ. 2021-07-09T09:45:22.10 0.1 undecidable manual P 106 7.6812 163 -0.04 99
IV.ECBD.HHN. 2021-07-09T09:45:22.61 0.1 undecidable manual P 116 14.0748 151 0.08 98
IV.ECZM.HHN. 2021-07-09T09:45:22.31 0.1 undecidable manual P 196 12.0768 155 -0.08 98
IV.ESVO.HHE. 2021-07-09T09:45:22.15 0.1 undecidable manual P 176 6.993 165 0.03 100
IV.EMFO.HHE. 2021-07-09T09:45:22.91 0.3 undecidable manual P 130 17.0718 146 0.13 72
IV.ESCV.HHZ. 2021-07-09T09:45:22.57 0.3 undecidable manual P 229 14.874 149 -0.02 74
IV.ESPC.HHN. 2021-07-09T09:45:22.43 0.1 undecidable manual P 155 17.5713 145 -0.39 91
IV.ECHR.HHE. 2021-07-09T09:45:22.88 0.3 undecidable manual P 189 16.7721 146 0.13 72
IV.EPIT.HHZ. 2021-07-09T09:45:22.36 0.1 undecidable manual P 105 10.3785 158 0.07 99
IV.MUCR.HHZ. 2021-07-09T09:45:22.97 0.1 undecidable manual P 346 23.754 136 -0.46 89
IV.ESLN.HHZ. 2021-07-09T09:45:22.68 0.3 undecidable manual P 170 16.0728 147 -0.01 74
IV.EMCN.HHN. 2021-07-09T09:45:22.24 0.1 undecidable manual P 121 9.3795 160 0.01 100
IV.EPZF.HHZ. 2021-07-09T09:45:21.84 0.1 negative manual P 260 7.5813 164 -0.3 95
IV.EMSG.HHZ. 2021-07-09T09:45:21.76 0.1 negative manual P 157 1.7982 176 -0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:2.4 0.0014700000000000002 0.38 AML other m 2021-07-09T09:45:26.28
IV.EPZF.HHN. ML:2.5 0.0016699999999999998 0.78 AML other m 2021-07-09T09:45:26.50
IV.EPIT.HHE. ML:2.3 0.001075 0.32 AML other m 2021-07-09T09:45:26.73
IV.EMSG.HHE. ML:2.4 0.001495 0.34 AML other m 2021-07-09T09:45:26.87
IV.EPIT.HHN. ML:2.6 0.0020999999999999994 0.78 AML other m 2021-07-09T09:45:27.11
IV.EMSG.HHN. ML:2.4 0.0014550000000000001 0.68 AML other m 2021-07-09T09:45:27.53
IV.ESCV.HHN. ML:2.4 0.0011459999999999999 0.44 AML other m 2021-07-09T09:45:27.96
IV.MUCR.HHN. ML:2.0 0.0003895 0.44 AML other m 2021-07-09T09:45:28.28
IV.MUCR.HHE. ML:2.1 0.0005695 1.5 AML other m 2021-07-09T09:45:28.17
IV.NOV.HHE. ML:2.7 0.0017000000000000001 1.1 AML other m 2021-07-09T09:45:28.72
IV.ESAL.HHE. ML:2.3 0.0008895 1.38 AML other m 2021-07-09T09:45:28.79
IV.ESAL.HHN. ML:2.2 0.0007624999999999999 0.62 AML other m 2021-07-09T09:45:28.80
IV.NOV.HHN. ML:2.6 0.00132 0.26 AML other m 2021-07-09T09:45:28.80
IV.ESCV.HHE. ML:2.3 0.0009645 0.34 AML other m 2021-07-09T09:45:30.18
IV.AIO.HHE. ML:1.8 0.00022 0.5 AML other m 2021-07-09T09:45:30.39
IV.AIO.HHN. ML:2.0 0.000347 0.26 AML other m 2021-07-09T09:45:30.79
IV.MSFR.HHE. ML:1.8 0.0001975 0.24 AML other m 2021-07-09T09:45:31.26
IV.MSFR.HHN. ML:1.7 0.00014450000000000002 0.22 AML other m 2021-07-09T09:45:31.31
IV.MCPD.HHN. ML:1.7 0.000166 0.38 AML other m 2021-07-09T09:45:31.78
IV.MCPD.HHE. ML:1.6 0.00011185 1.3 AML other m 2021-07-09T09:45:32.76
IV.EMPL.HHN. ML:2.3 0.000989 0.36 AML other m 2021-07-09T09:45:33.05
IV.EMPL.HHE. ML:2.1 0.00063 0.7 AML other m 2021-07-09T09:45:34.21
IV.GALF.HHN. ML:2.1 0.00035999999999999997 1.28 AML other m 2021-07-09T09:45:34.99
IV.GALF.HHE. ML:2.3 0.0005495 0.5 AML other m 2021-07-09T09:45:34.58
IV.HLNI.HHE. ML:2.3 0.0004295 0.24 AML other m 2021-07-09T09:45:35.31
IV.HLNI.HHN. ML:2.1 0.0002605 0.46 AML other m 2021-07-09T09:45:36.46
IV.MPNC.HHE. ML:2.2 0.00033150000000000003 0.48 AML other m 2021-07-09T09:45:36.49
IV.HCRL.HHN. ML:2.1 0.0002335 0.46 AML other m 2021-07-09T09:45:37.26
IV.MILZ.HHE. ML:2.6 0.000901 0.34 AML other m 2021-07-09T09:45:37.51
IV.MILZ.HHN. ML:2.2 0.00033899999999999995 1 AML other m 2021-07-09T09:45:37.72
IV.HAGA.HHE. ML:2.2 0.00027600000000000004 0.36 AML other m 2021-07-09T09:45:38.00
IV.HAGA.HHN. ML:2.1 0.0002175 1.18 AML other m 2021-07-09T09:45:38.83
IV.MPNC.HHN. ML:2.0 0.0002125 0.6 AML other m 2021-07-09T09:45:38.60
IV.CAGR.HHE. ML:2.1 0.0003 1.08 AML other m 2021-07-09T09:45:38.83
IV.HCRL.HHE. ML:2.1 0.000228 0.42 AML other m 2021-07-09T09:45:39.34
IV.HVZN.HNN. ML:2.3 0.000272 0.44 AML other m 2021-07-09T09:45:41.34
IV.SSY.HHE. ML:2.6 0.000614 0.2 AML other m 2021-07-09T09:45:41.63
IV.SSY.HHN. ML:2.9 0.0011949999999999999 0.18 AML other m 2021-07-09T09:45:42.72
IV.CAGR.HHN. ML:1.8 0.000165 0.5 AML other m 2021-07-09T09:45:43.30
IV.RAFF.HHN. ML:2.1 0.0001545 1.48 AML other m 2021-07-09T09:45:45.00
IV.RAFF.HHE. ML:2.3 0.00022299999999999997 1.6 AML other m 2021-07-09T09:45:45.91
IV.HMDC.HHE. ML:2.4 0.0002545 0.94 AML other m 2021-07-09T09:45:47.77
IV.HMDC.HHN. ML:2.3 0.0002065 0.86 AML other m 2021-07-09T09:45:47.81
IV.HVZN.HHE. ML:2.3 0.0002655 0.48 AML other m 2021-07-09T09:45:47.90
IV.HVZN.HNE. ML:2.2 0.000247 0.5 AML other m 2021-07-09T09:45:47.91
IV.HAVL.HHE. ML:2.1 0.0001325 0.24 AML other m 2021-07-09T09:45:48.19
IV.HVZN.HHN. ML:2.3 0.00026450000000000003 0.28 AML other m 2021-07-09T09:45:48.32
IV.HAVL.HHN. ML:2.3 0.0002115 1.76 AML other m 2021-07-09T09:45:48.97
MN.CEL.HHN. ML:1.5 0.000029749999999999998 1.58 AML other m 2021-07-09T09:45:50.19
MN.CEL.HHE. ML:1.5 0.0000346 0.56 AML other m 2021-07-09T09:45:52.63
IV.SOI.EHN. ML:1.8 0.00005295 0.4 AML other m 2021-07-09T09:45:52.75
IV.SOI.EHE. ML:1.6 0.0000363 0.32 AML other m 2021-07-09T09:45:53.43
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