Earthquake with magnitude of ML 1.6 on date 24-12-2021 and time 03:41:03 (Italy) in region 2 km S Camporotondo Etneo (CT)

A magnitude ML 1.6 earthquake occured in region: 2 km S Camporotondo Etneo (CT), on

  • 24-12-2021 02:41:03 (UTC)
  • 24-12-2021 03:41:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5480, 15.0080 at 10 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
Camporotondo Etneo CT 2 5023 5023
Misterbianco CT 3 49410 54433
San Pietro Clarenza CT 3 7743 62176
Mascalucia CT 5 31958 94134
Gravina di Catania CT 5 25838 119972
Motta Sant'Anastasia CT 5 12116 132088
Belpasso CT 6 28108 160196
Tremestieri Etneo CT 7 20589 180785
Sant'Agata li Battiati CT 7 9479 190264
Nicolosi CT 8 7463 197727
San Giovanni la Punta CT 8 23060 220787
Catania CT 9 314555 535342
Pedara CT 9 14102 549444
San Gregorio di Catania CT 9 11966 561410
Paternò CT 10 48228 609638
Trecastagni CT 10 10910 620548
Viagrande CT 11 8563 629111
Aci Bonaccorsi CT 11 3524 632635
Valverde CT 11 7840 640475
Ragalna CT 11 3924 644399
Aci Castello CT 12 18723 663122
Aci Sant'Antonio CT 12 17984 681106
Santa Maria di Licodia CT 13 7641 688747
Aci Catena CT 13 29851 718598
Acireale CT 16 52622 771220
Biancavilla CT 16 24007 795227
Zafferana Etnea CT 19 9517 804744
Santa Venerina CT 20 8592 813336

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NW of Catania (314555 inhabitants)
16 Km W of Acireale (52622 inhabitants)
60 Km NW of Siracusa (122291 inhabitants)
73 Km NE of Ragusa (73313 inhabitants)
78 Km NE of Vittoria (63339 inhabitants)
80 Km N of Modica (54633 inhabitants)
84 Km E of Caltanissetta (63360 inhabitants)
84 Km SW of Reggio di Calabria (183035 inhabitants)
86 Km NE of Gela (75827 inhabitants)
87 Km SW of Messina (238439 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 1.6 2021-12-24
02:41:03
37.5477 15.0078 10 2022-03-30
13:04:24
Bollettino Sismico Italiano INGV 99053321
Reviewed
Rev200
ML 1.5 2021-12-24
02:41:02
37.557 14.995 16 2022-03-15
16:04:07
Sala Operativa INGV_OE (Catania) 98885471
Reviewed
Rev100
ML 1.6 2021-12-24
02:41:03
37.5238 14.9948 11 2021-12-24
02:48:02
Sala Sismica INGV-Roma 98885201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-24 02:41:03 ± 0.09
Latitude 37.5477 ± 0.0036
Longitude 15.0078 ± 0.0091
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99053321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 742
Semi-minor axis of confidence ellipse (meter) 244
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 280
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 56
Number of defining phases 56
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) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.81748
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 35
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 99053321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-15 16:09:07

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 98885471
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-12-24 03:02:02

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 98885201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-24 02:48:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2021-12-24T02:41:31.73 0.6 undecidable manual S 29 0.8175 50 0.96 32
IV.ISPIC.EHZ. 2021-12-24T02:41:29.98 0.6 undecidable manual S 186 0.7716 50 0.58 39
IV.MPNC.HHZ. 2021-12-24T02:41:26.44 0.6 undecidable manual S 24 0.6574 50 0.41 41
IV.MCPD.HHZ. 2021-12-24T02:41:25.00 0.6 undecidable manual S 339 0.6124 50 0.31 42
IV.HMDC.HHZ. 2021-12-24T02:41:25.15 0.6 undecidable manual S 197 0.6151 50 0.38 42
IV.RAFF.HHZ. 2021-12-24T02:41:25.84 0.6 undecidable manual S 238 0.6070 50 1.31 27
IV.MSRU.HHZ. 2021-12-24T02:41:19.46 0.1 undecidable manual P 29 0.8175 50 0.04 88
IV.ISPIC.EHZ. 2021-12-24T02:41:18.24 0.3 undecidable manual P 186 0.7716 50 -0.39 62
IV.HMDC.HHZ. 2021-12-24T02:41:16.07 0.3 undecidable manual P 197 0.6151 50 0.12 68
IV.MPNC.HHZ. 2021-12-24T02:41:16.48 0.3 undecidable manual P 24 0.6574 50 -0.2 66
IV.RAFF.HHZ. 2021-12-24T02:41:15.38 0.1 undecidable manual P 238 0.6070 50 -0.44 85
IV.MCPD.HHZ. 2021-12-24T02:41:15.66 0.1 positive manual P 339 0.6124 50 -0.25 89
IV.HAGA.HHZ. 2021-12-24T02:41:15.76 0.6 undecidable manual S 156 0.2869 50 0.7 41
IT.LNT.HGZ. 2021-12-24T02:41:14.46 0.3 undecidable manual S 181 0.2590 50 0.23 71
IV.ESCV.HHZ. 2021-12-24T02:41:14.96 0.6 undecidable manual S 323 0.2509 50 0.97 34
IV.EMNR.HHZ. 2021-12-24T02:41:14.16 0.6 undecidable manual S 3 0.2698 50 -0.37 47
MN.VAE.HHZ. 2021-12-24T02:41:14.79 0.3 undecidable manual P 262 0.5252 50 0.37 65
IV.ECZM.HHZ. 2021-12-24T02:41:13.43 0.6 undecidable manual S 336 0.2014 115 0.98 36
IV.EMCN.HNZ. 2021-12-24T02:41:13.02 0.6 undecidable manual S 5 0.2446 50 -0.77 42
IV.HSRS.HHZ. 2021-12-24T02:41:13.60 0.3 undecidable manual P 159 0.4856 50 -0.14 69
IV.ECBD.HHZ. 2021-12-24T02:41:13.08 0.6 undecidable manual S 15 0.2410 50 -0.6 45
IV.HVZN.HHZ. 2021-12-24T02:41:13.04 0.3 undecidable manual P 212 0.4362 50 0.14 70
IV.GALF.HHZ. 2021-12-24T02:41:12.39 0.6 undecidable manual P 295 0.3858 50 0.36 45
IV.EVRN.HNZ. 2021-12-24T02:41:12.26 0.6 undecidable manual S 35 0.1736 118 0.75 43
IV.SSY.HHZ. 2021-12-24T02:41:12.14 0.1 negative manual P 172 0.3930 50 -0.02 96
IV.HLNI.HHZ. 2021-12-24T02:41:12.89 0.6 undecidable manual S 209 0.2266 50 -0.37 47
IV.EMPL.HHZ. 2021-12-24T02:41:11.15 0.6 undecidable manual S 347 0.1349 125 0.94 41
IV.ECTS.HHZ. 2021-12-24T02:41:11.09 0.3 undecidable manual P 15 0.3462 50 -0.27 70
IV.ESLN.HHZ. 2021-12-24T02:41:11.08 0.6 undecidable manual S 350 0.1484 122 0.44 48
IV.ECHR.HHZ. 2021-12-24T02:41:11.88 0.6 undecidable manual S 332 0.1574 120 0.92 40
IV.EMFS.HHZ. 2021-12-24T02:41:11.38 0.6 undecidable manual S 357 0.1718 118 -0.06 49
IV.EPZF.HHZ. 2021-12-24T02:41:10.58 0.1 negative manual P 337 0.3013 50 0 98
IV.HAGA.HHZ. 2021-12-24T02:41:10.31 0.1 undecidable manual P 156 0.2869 50 -0.04 98
IV.ESPC.HHZ. 2021-12-24T02:41:10.73 0.6 undecidable manual S 6 0.1457 122 0.17 51
IV.EFIU.HHE. 2021-12-24T02:41:10.46 0.3 undecidable manual P 33 0.2905 50 0.06 73
IV.EMNR.HHZ. 2021-12-24T02:41:09.95 0.1 undecidable manual P 3 0.2698 50 -0.1 98
IT.LNT.HGZ. 2021-12-24T02:41:09.72 0.3 undecidable manual P 181 0.2590 50 -0.15 72
IV.ESCV.HHZ. 2021-12-24T02:41:09.60 0.1 negative manual P 323 0.2509 50 -0.13 98
IV.ESVO.HHZ. 2021-12-24T02:41:09.31 0.3 undecidable manual P 348 0.2302 50 -0.07 75
IV.EPOZ.HHZ. 2021-12-24T02:41:09.32 0.1 positive manual P 49 0.1898 116 0.71 86
IV.ESML.HHZ. 2021-12-24T02:41:09.85 0.6 undecidable manual S 305 0.1241 127 -0.02 49
IV.EMFO.HHZ. 2021-12-24T02:41:09.65 0.3 undecidable manual P 19 0.1988 115 0.85 59
IV.ESAL.HHZ. 2021-12-24T02:41:09.53 0.3 undecidable manual P 26 0.2302 50 0.15 72
IV.EPIT.HHN. 2021-12-24T02:41:09.84 0.1 undecidable manual P 8 0.2662 50 -0.15 97
IV.ECBD.HHZ. 2021-12-24T02:41:08.95 0.1 undecidable manual P 15 0.2410 50 -0.6 87
IV.ECZM.HHZ. 2021-12-24T02:41:08.87 0.1 undecidable manual P 336 0.2014 115 0.03 100
IV.EVRN.HNZ. 2021-12-24T02:41:08.50 0.3 undecidable manual P 35 0.1736 118 0.2 74
IV.EMCN.HNZ. 2021-12-24T02:41:08.97 0.1 undecidable manual P 5 0.2446 50 -0.65 86
IV.HLNI.HHZ. 2021-12-24T02:41:08.80 0.1 undecidable manual P 209 0.2266 50 -0.51 90
IV.EPDN.HHZ. 2021-12-24T02:41:08.87 0.6 undecidable manual P 2 0.2185 50 -0.3 48
IV.EMPL.HHZ. 2021-12-24T02:41:07.76 0.1 undecidable manual P 347 0.1349 125 0.21 100
IV.ECHR.HHZ. 2021-12-24T02:41:07.82 0.1 negative manual P 332 0.1574 120 -0.16 96
IV.EMFS.HHZ. 2021-12-24T02:41:07.92 0.1 negative manual P 357 0.1718 118 -0.34 93
IV.ESML.HHZ. 2021-12-24T02:41:07.03 0.1 negative manual P 305 0.1241 127 -0.32 93
IV.ESLN.HHZ. 2021-12-24T02:41:07.83 0.1 negative manual P 350 0.1484 122 0.03 100
IV.ESPC.HHZ. 2021-12-24T02:41:07.63 0.1 negative manual P 6 0.1457 122 -0.12 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HNE. ML:1.6 0.00042991864999999995 0.2496 AML other m 2021-12-24T02:41:10.05
IV.ESML.HHN. ML:1.7 0.000570339 0.28 AML other m 2021-12-24T02:41:09.96
IV.ESML.HNN. ML:1.6 0.00045317830000000004 0.2512 AML other m 2021-12-24T02:41:09.97
IV.ESML.HHE. ML:1.7 0.0004992355 0.1008 AML other m 2021-12-24T02:41:10.05
IV.EMPL.HHE. ML:2.0 0.000941713 0.2992 AML other m 2021-12-24T02:41:11.27
IV.EMPL.HHN. ML:2.4 0.0025800000000000003 0.26 AML other m 2021-12-24T02:41:11.54
IV.HLNI.HHE. ML:1.5 0.00018263576 0.2192 AML other m 2021-12-24T02:41:13.06
IV.HLNI.HHN. ML:1.6 0.00026094424999999996 0.1008 AML other m 2021-12-24T02:41:13.06
IV.ESCV.HHE. ML:1.3 0.00010357875 0.5184 AML other m 2021-12-24T02:41:15.08
IV.ESCV.HHN. ML:1.4 0.000146916825 0.2 AML other m 2021-12-24T02:41:15.07
IV.HAGA.HHN. ML:1.1 0.000060273100000000004 0 AML other m 2021-12-24T02:41:16.01
IV.HAGA.HHE. ML:1.1 0.00005707388000000001 0.32 AML other m 2021-12-24T02:41:16.18
IV.HVZN.HHN. ML:1.5 0.00008497992500000002 0.64 AML other m 2021-12-24T02:41:19.83
IV.HVZN.HHE. ML:1.5 0.00008361478 0.3392 AML other m 2021-12-24T02:41:20.29
IV.HMDC.HHN. ML:1.6 0.000062670875 0.68 AML other m 2021-12-24T02:41:25.80
IV.RAFF.HHN. ML:1.7 0.0000852769 0.2416 AML other m 2021-12-24T02:41:26.24
IV.RAFF.HHE. ML:1.8 0.0000991 0.24 AML other m 2021-12-24T02:41:26.28
IV.MCPD.HHN. ML:1.2 0.00002382677 0.9584 AML other m 2021-12-24T02:41:26.85
IV.MPNC.HHE. ML:1.4 0.000035033060000000006 0.2608 AML other m 2021-12-24T02:41:26.80
IV.MPNC.HHN. ML:1.6 0.00006393896000000001 0.3792 AML other m 2021-12-24T02:41:26.90
IV.ISPIC.EHN. ML:1.6 0.00004751652 0.0816 AML other m 2021-12-24T02:41:30.28
IV.ISPIC.EHE. ML:1.5 0.00004177590000000001 0.6192 AML other m 2021-12-24T02:41:30.34
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