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.

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

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
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 Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-07-09T09:45:46.01 0.3 undecidable manual S 171 0.8867 101 -0.29 60
IV.PLAC.HHZ. 2021-07-09T09:45:42.22 0.6 undecidable manual P 62 1.3265 54 1.73 19
IV.HVZN.HHZ. 2021-07-09T09:45:40.68 0.3 undecidable manual S 195 0.6808 105 0.32 62
IV.SSY.HHZ. 2021-07-09T09:45:40.49 0.6 undecidable manual S 171 0.6853 105 0 44
IV.HAGA.HHZ. 2021-07-09T09:45:37.24 0.6 undecidable manual S 163 0.5756 108 -0.12 44
IV.HCRL.HHZ. 2021-07-09T09:45:36.78 0.6 undecidable manual S 173 0.5567 109 -0.05 45
IV.MPNC.HHZ. 2021-07-09T09:45:34.40 0.6 undecidable manual S 46 0.4488 114 0.55 42
IV.SOI.EHZ. 2021-07-09T09:45:34.84 0.3 undecidable manual P 74 0.9083 101 0.52 57
IV.HLNI.HHZ. 2021-07-09T09:45:34.81 0.6 undecidable manual S 187 0.4901 112 -0.17 45
MN.CEL.HHZ. 2021-07-09T09:45:33.84 0.1 undecidable manual P 60 0.8616 102 0.31 80
IV.HAVL.HHZ. 2021-07-09T09:45:33.56 0.3 undecidable manual P 171 0.8867 101 -0.4 59
IV.HMDC.HHZ. 2021-07-09T09:45:33.76 0.1 undecidable manual P 188 0.8849 101 -0.17 82
IV.RAFF.HHZ. 2021-07-09T09:45:32.34 0.3 undecidable manual P 217 0.7653 103 0.41 60
IV.MCPD.HHZ. 2021-07-09T09:45:31.07 0.6 undecidable manual S 330 0.3292 122 0.35 44
IV.SSY.HHZ. 2021-07-09T09:45:30.27 0.3 undecidable manual P 171 0.6853 105 -0.33 62
IV.HVZN.HHZ. 2021-07-09T09:45:30.94 0.3 undecidable manual P 195 0.6808 105 0.41 61
IV.MSFR.HHZ. 2021-07-09T09:45:30.89 0.6 undecidable manual S 306 0.3399 121 -0.1 47
IV.MSRU.HHZ. 2021-07-09T09:45:29.79 0.3 undecidable manual P 46 0.6178 107 0.29 64
IV.AIO.HHZ. 2021-07-09T09:45:29.27 0.6 undecidable manual S 59 0.2662 129 0.06 48
IV.HAGA.HHZ. 2021-07-09T09:45:28.48 0.3 undecidable manual P 163 0.5756 108 -0.32 64
IV.NOV.HHZ. 2021-07-09T09:45:28.38 0.6 undecidable manual S 39 0.2455 131 -0.37 45
IV.ESAL.HHZ. 2021-07-09T09:45:28.28 0.6 undecidable manual S 118 0.1718 142 1.04 36
IV.HCRL.HHZ. 2021-07-09T09:45:28.13 0.3 undecidable manual P 173 0.5567 109 -0.37 63
IV.MILZ.HHZ. 2021-07-09T09:45:27.43 0.3 undecidable manual P 28 0.4910 112 -0.02 69
IV.MUCR.HHZ. 2021-07-09T09:45:27.77 0.6 undecidable manual S 346 0.2140 136 -0.29 46
IV.CAGR.HHZ. 2021-07-09T09:45:27.78 0.3 undecidable manual P 239 0.4092 116 1.62 36
IV.HLNI.HHZ. 2021-07-09T09:45:27.07 0.1 undecidable manual P 187 0.4901 112 -0.35 86
IV.ECTS.HHZ. 2021-07-09T09:45:26.42 0.6 undecidable manual S 72 0.1484 147 -0.42 45
IV.MPNC.HHZ. 2021-07-09T09:45:26.69 0.1 undecidable manual P 46 0.4488 114 -0.08 91
IV.EMNR.HHZ. 2021-07-09T09:45:26.18 0.6 undecidable manual S 106 0.0692 163 0.34 47
IV.ECBD.HHN. 2021-07-09T09:45:26.81 0.6 undecidable manual S 116 0.1268 151 0.3 47
IV.ECZM.HHN. 2021-07-09T09:45:26.45 0.6 undecidable manual S 196 0.1088 155 0.19 48
IV.ESVO.HHE. 2021-07-09T09:45:26.26 0.6 undecidable manual S 176 0.0630 165 0.48 45
IV.ESPC.HHN. 2021-07-09T09:45:26.73 0.6 undecidable manual S 155 0.1583 145 -0.27 47
IV.EPIT.HHZ. 2021-07-09T09:45:26.44 0.6 undecidable manual S 105 0.0935 158 0.36 46
IV.EMCN.HHN. 2021-07-09T09:45:25.95 0.6 undecidable manual S 121 0.0845 160 -0.04 50
IV.MSFR.HHZ. 2021-07-09T09:45:25.04 0.1 undecidable manual P 306 0.3399 121 -0.08 94
IV.EPZF.HHZ. 2021-07-09T09:45:25.88 0.6 undecidable manual S 260 0.0683 164 0.05 50
IV.EMSG.HHZ. 2021-07-09T09:45:25.85 0.6 undecidable manual S 157 0.0162 176 0.3 48
IV.GALF.HHZ. 2021-07-09T09:45:25.16 0.1 undecidable manual P 247 0.3220 123 0.3 89
IV.MCPD.HHZ. 2021-07-09T09:45:24.67 0.1 undecidable manual P 330 0.3292 122 -0.29 90
IV.AIO.HHZ. 2021-07-09T09:45:23.96 0.1 positive manual P 59 0.2662 129 -0.14 94
IV.NOV.HHZ. 2021-07-09T09:45:23.56 0.1 undecidable manual P 39 0.2455 131 -0.27 92
IV.ESAL.HHZ. 2021-07-09T09:45:23.12 0.3 undecidable manual P 118 0.1718 142 0.16 72
IV.EMFO.HHE. 2021-07-09T09:45:22.91 0.3 undecidable manual P 130 0.1538 146 0.13 72
IV.ESCV.HHZ. 2021-07-09T09:45:22.57 0.3 undecidable manual P 229 0.1340 149 -0.02 74
IV.ESPC.HHN. 2021-07-09T09:45:22.43 0.1 undecidable manual P 155 0.1583 145 -0.39 91
IV.ECHR.HHE. 2021-07-09T09:45:22.88 0.3 undecidable manual P 189 0.1511 146 0.13 72
IV.EPIT.HHZ. 2021-07-09T09:45:22.36 0.1 undecidable manual P 105 0.0935 158 0.07 99
IV.MUCR.HHZ. 2021-07-09T09:45:22.97 0.1 undecidable manual P 346 0.2140 136 -0.46 89
IV.ESLN.HHZ. 2021-07-09T09:45:22.68 0.3 undecidable manual P 170 0.1448 147 -0.01 74
IV.EMCN.HHN. 2021-07-09T09:45:22.24 0.1 undecidable manual P 121 0.0845 160 0.01 100
IV.ECTS.HHZ. 2021-07-09T09:45:22.39 0.1 undecidable manual P 72 0.1484 147 -0.34 92
IV.EMPL.HHZ. 2021-07-09T09:45:22.77 0.3 undecidable manual P 172 0.1583 145 -0.05 73
IV.EMNR.HHZ. 2021-07-09T09:45:22.10 0.1 undecidable manual P 106 0.0692 163 -0.04 99
IV.ECBD.HHN. 2021-07-09T09:45:22.61 0.1 undecidable manual P 116 0.1268 151 0.08 98
IV.ECZM.HHN. 2021-07-09T09:45:22.31 0.1 undecidable manual P 196 0.1088 155 -0.08 98
IV.ESVO.HHE. 2021-07-09T09:45:22.15 0.1 undecidable manual P 176 0.0630 165 0.03 100
IV.EMSG.HHZ. 2021-07-09T09:45:21.76 0.1 negative manual P 157 0.0162 176 -0.22 97
IV.EPZF.HHZ. 2021-07-09T09:45:21.84 0.1 negative manual P 260 0.0683 164 -0.3 95
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
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download