Earthquake with magnitude of ML 2.0 on date 24-12-2021 and time 10:23:56 (Italy) in region 1 km NW Santa Venerina (CT)

A magnitude ML 2.0 earthquake occured in region: 1 km NW Santa Venerina (CT), on

  • 24-12-2021 09:23:56 (UTC)
  • 24-12-2021 10:23:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6950, 15.1310 at 8 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
Santa Venerina CT 1 8592 8592
Zafferana Etnea CT 2 9517 18109
Milo CT 4 1087 19196
Sant'Alfio CT 6 1582 20778
Giarre CT 6 27659 48437
Riposto CT 8 14838 63275
Mascali CT 9 14282 77557
Trecastagni CT 10 10910 88467
Acireale CT 10 52622 141089
Viagrande CT 10 8563 149652
Aci Sant'Antonio CT 10 17984 167636
Aci Catena CT 10 29851 197487
Pedara CT 11 14102 211589
Aci Bonaccorsi CT 11 3524 215113
Nicolosi CT 13 7463 222576
Valverde CT 13 7840 230416
Fiumefreddo di Sicilia CT 13 9623 240039
Piedimonte Etneo CT 13 3963 244002
San Giovanni la Punta CT 13 23060 267062
Tremestieri Etneo CT 14 20589 287651
San Gregorio di Catania CT 15 11966 299617
Mascalucia CT 15 31958 331575
Aci Castello CT 15 18723 350298
Sant'Agata li Battiati CT 16 9479 359777
Gravina di Catania CT 16 25838 385615
Linguaglossa CT 16 5403 391018
San Pietro Clarenza CT 16 7743 398761
Calatabiano CT 17 5308 404069
Belpasso CT 18 28108 432177
Camporotondo Etneo CT 18 5023 437200
Ragalna CT 18 3924 441124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NW of Acireale (52622 inhabitants)
22 Km N of Catania (314555 inhabitants)
65 Km SW of Reggio di Calabria (183035 inhabitants)
67 Km SW of Messina (238439 inhabitants)
72 Km N of Siracusa (122291 inhabitants)
93 Km NE of Ragusa (73313 inhabitants)
97 Km E of Caltanissetta (63360 inhabitants)
98 Km NE of Vittoria (63339 inhabitants)
98 Km NE of Modica (54633 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 2.0 2021-12-24
09:23:56
37.6953 15.1308 8 2022-03-30
13:04:37
Bollettino Sismico Italiano INGV 101046551
Reviewed
Rev200
ML 2.1 2021-12-24
09:23:55
37.708 15.096 5 2022-03-15
18:19:25
Sala Operativa INGV_OE (Catania) 98900691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-24 09:23:56 ± 0.08
Latitude 37.6953 ± 0.0045
Longitude 15.1308 ± 0.0057
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101046551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 553
Semi-minor axis of confidence ellipse (meter) 429
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 312
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
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 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00719
Epicentral distance of station farthest from the epicenter (degree) 0.88134
Number of stations at which the event was observed 34
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 101046551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-15 18:19:05

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 98900691
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-12-24 09:30:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CSLB.HHZ. 2021-12-24T09:24:13.63 0.6 undecidable manual P 286 0.8813 50 0.5 39
IV.MPNC.HHZ. 2021-12-24T09:24:13.79 0.6 undecidable manual S 21 0.4838 50 0.05 46
IV.MUCR.HHZ. 2021-12-24T09:24:12.29 0.6 undecidable manual S 330 0.4020 50 0.96 35
IV.HMDC.HHZ. 2021-12-24T09:24:12.05 0.3 undecidable manual P 201 0.7860 50 0.55 58
IV.HAGA.HHZ. 2021-12-24T09:24:12.31 0.6 undecidable manual S 177 0.4110 50 0.73 39
IV.RAFF.HHZ. 2021-12-24T09:24:11.25 0.1 undecidable manual P 232 0.7716 50 0 88
IV.HLNI.HHZ. 2021-12-24T09:24:11.05 0.6 undecidable manual S 211 0.4029 50 -0.3 45
IV.SSY.HHZ. 2021-12-24T09:24:07.40 0.3 undecidable manual P 185 0.5396 50 0.12 68
IV.MCPD.HHZ. 2021-12-24T09:24:07.16 0.3 undecidable manual P 324 0.5288 50 0.06 69
IV.MILZ.HHZ. 2021-12-24T09:24:07.78 0.3 undecidable manual P 8 0.5810 50 -0.21 66
IV.GALF.HHZ. 2021-12-24T09:24:06.19 0.1 undecidable manual P 272 0.4470 50 0.5 85
IV.MUCR.HHZ. 2021-12-24T09:24:05.26 0.1 positive manual P 330 0.4020 50 0.32 89
IV.MPNC.HHZ. 2021-12-24T09:24:05.88 0.1 undecidable manual P 21 0.4838 50 -0.45 85
IV.ESML.HHZ. 2021-12-24T09:24:05.42 0.6 undecidable manual S 249 0.2131 108 0.58 43
IV.ECHR.HNZ. 2021-12-24T09:24:04.41 0.6 undecidable manual S 267 0.1727 112 1.05 35
IV.HAGA.HHZ. 2021-12-24T09:24:04.98 0.3 undecidable manual P 177 0.4110 50 -0.1 70
IV.ECZM.HHZ. 2021-12-24T09:24:04.75 0.6 undecidable manual S 281 0.1826 111 1.02 36
IV.HLNI.HHZ. 2021-12-24T09:24:04.51 0.1 positive manual P 211 0.4029 50 -0.44 87
IV.ECTS.HHZ. 2021-12-24T09:24:04.25 0.6 undecidable manual S 358 0.1871 110 0.39 46
IV.AIO.HHZ. 2021-12-24T09:24:02.42 0.1 positive manual P 16 0.2869 104 -0.35 91
IV.EMPL.HHZ. 2021-12-24T09:24:02.08 0.6 undecidable manual S 263 0.1277 118 0.28 47
IV.ESCV.HHZ. 2021-12-24T09:24:02.32 0.6 undecidable manual P 282 0.2545 105 0.25 47
IV.EPIT.HHZ. 2021-12-24T09:24:02.33 0.6 undecidable manual S 333 0.1295 118 0.47 46
IV.EPDN.HHZ. 2021-12-24T09:24:02.13 0.6 undecidable manual S 308 0.1142 121 0.78 40
IV.EFIU.HHZ. 2021-12-24T09:24:02.34 0.6 undecidable manual S 34 0.1133 121 1.04 36
IV.EPOZ.HHZ. 2021-12-24T09:24:01.02 0.6 undecidable manual S 117 0.0513 143 1.51 28
IV.ESML.HHZ. 2021-12-24T09:24:01.31 0.1 negative manual P 249 0.2131 108 0.12 96
IV.EPZF.HHZ. 2021-12-24T09:24:01.63 0.3 undecidable manual P 301 0.2518 105 -0.37 68
IV.EMFS.HHZ. 2021-12-24T09:24:01.39 0.6 undecidable manual S 283 0.1079 123 0.26 48
IV.ESLN.HHZ. 2021-12-24T09:24:01.65 0.6 undecidable manual S 269 0.1241 119 -0.01 50
IV.ECHR.HNZ. 2021-12-24T09:24:00.06 0.1 negative manual P 267 0.1727 112 -0.28 94
IV.ECZM.HHZ. 2021-12-24T09:24:00.44 0.1 negative manual P 281 0.1826 111 -0.1 97
IV.ECBD.HHZ. 2021-12-24T09:24:00.93 0.6 undecidable manual S 338 0.0917 127 0.31 47
IV.ESPC.HHZ. 2021-12-24T09:24:00.55 0.6 undecidable manual S 268 0.0818 130 0.23 48
IV.ECTS.HHZ. 2021-12-24T09:24:00.34 0.1 undecidable manual P 358 0.1871 110 -0.28 94
IV.ESAL.HHZ. 2021-12-24T09:24:00.13 0.6 undecidable manual S 3 0.0594 139 0.41 47
IV.ESVO.HHZ. 2021-12-24T09:23:59.69 0.1 negative manual P 298 0.1646 113 -0.48 90
IV.EPIT.HHZ. 2021-12-24T09:23:59.61 0.1 undecidable manual P 333 0.1295 118 0.14 98
IV.EMFO.HHZ. 2021-12-24T09:23:59.44 0.6 undecidable manual S 321 0.0513 143 -0.08 50
IV.EMNR.HHZ. 2021-12-24T09:23:59.90 0.1 undecidable manual P 326 0.1466 115 0.09 98
IV.EFIU.HHZ. 2021-12-24T09:23:59.18 0.1 positive manual P 34 0.1133 121 0.03 100
IV.EMCN.HHZ. 2021-12-24T09:23:59.10 0.1 negative manual P 321 0.1232 119 -0.23 96
IV.EMPL.HHZ. 2021-12-24T09:23:59.00 0.1 negative manual P 263 0.1277 118 -0.43 92
IV.ESLN.HHZ. 2021-12-24T09:23:58.80 0.1 negative manual P 269 0.1241 119 -0.55 89
IV.ECBD.HHZ. 2021-12-24T09:23:58.69 0.1 negative manual P 338 0.0917 127 -0.06 100
IV.EPOZ.HHZ. 2021-12-24T09:23:58.46 0.1 negative manual P 117 0.0513 143 0.35 95
IV.EPDN.HHZ. 2021-12-24T09:23:58.91 0.1 negative manual P 308 0.1142 121 -0.26 95
IV.EVRN.HNZ. 2021-12-24T09:23:58.90 0.6 undecidable manual S 149 0.0072 174 0.03 51
IV.ESAL.HHZ. 2021-12-24T09:23:58.00 0.1 positive manual P 3 0.0594 139 -0.23 97
IV.ECNE.HHZ. 2021-12-24T09:23:58.99 0.1 negative manual P 304 0.1241 119 -0.36 93
IV.EMFS.HHZ. 2021-12-24T09:23:58.64 0.1 negative manual P 283 0.1079 123 -0.41 93
IV.ESPC.HHZ. 2021-12-24T09:23:58.17 0.1 undecidable manual P 268 0.0818 130 -0.41 93
IV.EVRN.HNZ. 2021-12-24T09:23:57.52 0.1 positive manual P 149 0.0072 174 -0.22 98
IV.EMFO.HHZ. 2021-12-24T09:23:57.82 0.1 negative manual P 321 0.0513 143 -0.29 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNE. ML:0.0 0.034606055 0.4288 AML other m 2021-12-24T09:23:59.23
IV.EVRN.HHN. ML:0.0 0.078886965 0.16 AML other m 2021-12-24T09:23:59.03
IV.EVRN.HNN. ML:0.0 0.084387035 0.16 AML other m 2021-12-24T09:23:59.03
IV.EVRN.HHE. ML:0.0 0.036265465 0.1216 AML other m 2021-12-24T09:23:59.10
IV.ESAL.HHN. ML:2.8 0.010739347 0.2816 AML other m 2021-12-24T09:24:00.27
IV.ESAL.HHE. ML:2.9 0.01426182 0.3648 AML other m 2021-12-24T09:24:00.26
IV.EMPL.HHN. ML:2.7 0.005878840000000001 0.2176 AML other m 2021-12-24T09:24:02.47
IV.EPIT.HHN. ML:2.6 0.0041001325 0.2176 AML other m 2021-12-24T09:24:02.38
IV.ECTS.HHE. ML:2.1 0.0010101593 0.2432 AML other m 2021-12-24T09:24:04.89
IV.ESML.HHN. ML:1.9 0.0005051082500000001 0.256 AML other m 2021-12-24T09:24:06.24
IV.ESML.HHE. ML:2.2 0.0010563776 0.5184 AML other m 2021-12-24T09:24:06.34
IV.AIO.HHN. ML:1.9 0.00036282425 0.16 AML other m 2021-12-24T09:24:08.58
IV.AIO.HHE. ML:1.9 0.0003768706 0.16 AML other m 2021-12-24T09:24:08.61
IV.HLNI.HHE. ML:1.7 0.00014972019 0.5824 AML other m 2021-12-24T09:24:12.18
IV.HLNI.HHN. ML:1.6 0.000127863905 0.2816 AML other m 2021-12-24T09:24:12.04
IV.MUCR.HHN. ML:2.0 0.00031155310000000004 1.1008 AML other m 2021-12-24T09:24:12.51
IV.HAGA.HHN. ML:1.6 0.00010672794 0.4224 AML other m 2021-12-24T09:24:12.49
IV.HAGA.HHE. ML:1.5 0.00009946956000000002 0.6016 AML other m 2021-12-24T09:24:12.88
IV.MUCR.HHE. ML:2.3 0.00061115455 0.5568 AML other m 2021-12-24T09:24:13.39
IV.SSY.HNN. ML:1.8 0.00013829797500000001 0.4416 AML other m 2021-12-24T09:24:16.57
IV.MILZ.HHN. ML:1.9 0.00014011090000000002 1.4208 AML other m 2021-12-24T09:24:18.37
IV.MILZ.HHE. ML:2.2 0.00029234139999999997 1.4784 AML other m 2021-12-24T09:24:19.10
IV.HMDC.HHN. ML:1.8 0.00006787659499999999 0.2368 AML other m 2021-12-24T09:24:23.96
IV.HMDC.HNN. ML:2.1 0.00015642505 0.5312 AML other m 2021-12-24T09:24:23.90
IV.RAFF.HHN. ML:1.9 0.00010453755 0.8384 AML other m 2021-12-24T09:24:25.09
IV.RAFF.HHE. ML:1.8 0.000079330325 0.3008 AML other m 2021-12-24T09:24:25.22
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
Waveforms Seismic signals in miniseed + resp format Download