Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 24-12-2021 and time 02:41:03 (UTC) 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.

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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
Camporotondo Etneo CT 2 5023 5023
Misterbianco CT 3 49410 54433
San Pietro Clarenza CT 3 7743 62176
Mascalucia CT 5 31958 94134
Motta Sant'Anastasia CT 5 12116 106250
Gravina di Catania CT 5 25838 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
Aci Bonaccorsi CT 11 3524 624072
Viagrande CT 11 8563 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
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 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 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

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
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2021-12-24T02:41:31.73 0.6 undecidable manual S 29 90.7425 50 0.96 32
IV.ISPIC.EHZ. 2021-12-24T02:41:29.98 0.6 undecidable manual S 186 85.6476 50 0.58 39
IV.MPNC.HHZ. 2021-12-24T02:41:26.44 0.6 undecidable manual S 24 72.9714 50 0.41 41
IV.HMDC.HHZ. 2021-12-24T02:41:25.15 0.6 undecidable manual S 197 68.2761 50 0.38 42
IV.RAFF.HHZ. 2021-12-24T02:41:25.84 0.6 undecidable manual S 238 67.377 50 1.31 27
IV.MCPD.HHZ. 2021-12-24T02:41:25.00 0.6 undecidable manual S 339 67.9764 50 0.31 42
IV.MSRU.HHZ. 2021-12-24T02:41:19.46 0.1 undecidable manual P 29 90.7425 50 0.04 88
IV.ISPIC.EHZ. 2021-12-24T02:41:18.24 0.3 undecidable manual P 186 85.6476 50 -0.39 62
IV.MPNC.HHZ. 2021-12-24T02:41:16.48 0.3 undecidable manual P 24 72.9714 50 -0.2 66
IV.HMDC.HHZ. 2021-12-24T02:41:16.07 0.3 undecidable manual P 197 68.2761 50 0.12 68
IV.MCPD.HHZ. 2021-12-24T02:41:15.66 0.1 positive manual P 339 67.9764 50 -0.25 89
IV.HAGA.HHZ. 2021-12-24T02:41:15.76 0.6 undecidable manual S 156 31.8459 50 0.7 41
IV.RAFF.HHZ. 2021-12-24T02:41:15.38 0.1 undecidable manual P 238 67.377 50 -0.44 85
IT.LNT.HGZ. 2021-12-24T02:41:14.46 0.3 undecidable manual S 181 28.749 50 0.23 71
IV.ESCV.HHZ. 2021-12-24T02:41:14.96 0.6 undecidable manual S 323 27.8499 50 0.97 34
IV.EMNR.HHZ. 2021-12-24T02:41:14.16 0.6 undecidable manual S 3 29.9478 50 -0.37 47
MN.VAE.HHZ. 2021-12-24T02:41:14.79 0.3 undecidable manual P 262 58.2972 50 0.37 65
IV.ECZM.HHZ. 2021-12-24T02:41:13.43 0.6 undecidable manual S 336 22.3554 115 0.98 36
IV.EMCN.HNZ. 2021-12-24T02:41:13.02 0.6 undecidable manual S 5 27.1506 50 -0.77 42
IV.HSRS.HHZ. 2021-12-24T02:41:13.60 0.3 undecidable manual P 159 53.9016 50 -0.14 69
IV.ECBD.HHZ. 2021-12-24T02:41:13.08 0.6 undecidable manual S 15 26.751 50 -0.6 45
IV.HVZN.HHZ. 2021-12-24T02:41:13.04 0.3 undecidable manual P 212 48.4182 50 0.14 70
IV.HLNI.HHZ. 2021-12-24T02:41:12.89 0.6 undecidable manual S 209 25.1526 50 -0.37 47
IV.GALF.HHZ. 2021-12-24T02:41:12.39 0.6 undecidable manual P 295 42.8238 50 0.36 45
IV.EVRN.HNZ. 2021-12-24T02:41:12.26 0.6 undecidable manual S 35 19.2696 118 0.75 43
IV.SSY.HHZ. 2021-12-24T02:41:12.14 0.1 negative manual P 172 43.623 50 -0.02 96
IV.EMFS.HHZ. 2021-12-24T02:41:11.38 0.6 undecidable manual S 357 19.0698 118 -0.06 49
IV.EMPL.HHZ. 2021-12-24T02:41:11.15 0.6 undecidable manual S 347 14.9739 125 0.94 41
IV.ECTS.HHZ. 2021-12-24T02:41:11.09 0.3 undecidable manual P 15 38.4282 50 -0.27 70
IV.ESLN.HHZ. 2021-12-24T02:41:11.08 0.6 undecidable manual S 350 16.4724 122 0.44 48
IV.ECHR.HHZ. 2021-12-24T02:41:11.88 0.6 undecidable manual S 332 17.4714 120 0.92 40
IV.EPZF.HHZ. 2021-12-24T02:41:10.58 0.1 negative manual P 337 33.4443 50 0 98
IV.HAGA.HHZ. 2021-12-24T02:41:10.31 0.1 undecidable manual P 156 31.8459 50 -0.04 98
IV.ESPC.HHZ. 2021-12-24T02:41:10.73 0.6 undecidable manual S 6 16.1727 122 0.17 51
IV.EFIU.HHE. 2021-12-24T02:41:10.46 0.3 undecidable manual P 33 32.2455 50 0.06 73
IV.ESML.HHZ. 2021-12-24T02:41:09.85 0.6 undecidable manual S 305 13.7751 127 -0.02 49
IV.EMFO.HHZ. 2021-12-24T02:41:09.65 0.3 undecidable manual P 19 22.0668 115 0.85 59
IV.ESAL.HHZ. 2021-12-24T02:41:09.53 0.3 undecidable manual P 26 25.5522 50 0.15 72
IV.EPIT.HHN. 2021-12-24T02:41:09.84 0.1 undecidable manual P 8 29.5482 50 -0.15 97
IV.EMNR.HHZ. 2021-12-24T02:41:09.95 0.1 undecidable manual P 3 29.9478 50 -0.1 98
IT.LNT.HGZ. 2021-12-24T02:41:09.72 0.3 undecidable manual P 181 28.749 50 -0.15 72
IV.ESCV.HHZ. 2021-12-24T02:41:09.60 0.1 negative manual P 323 27.8499 50 -0.13 98
IV.ESVO.HHZ. 2021-12-24T02:41:09.31 0.3 undecidable manual P 348 25.5522 50 -0.07 75
IV.EPOZ.HHZ. 2021-12-24T02:41:09.32 0.1 positive manual P 49 21.0678 116 0.71 86
IV.HLNI.HHZ. 2021-12-24T02:41:08.80 0.1 undecidable manual P 209 25.1526 50 -0.51 90
IV.EPDN.HHZ. 2021-12-24T02:41:08.87 0.6 undecidable manual P 2 24.2535 50 -0.3 48
IV.ECBD.HHZ. 2021-12-24T02:41:08.95 0.1 undecidable manual P 15 26.751 50 -0.6 87
IV.ECZM.HHZ. 2021-12-24T02:41:08.87 0.1 undecidable manual P 336 22.3554 115 0.03 100
IV.EVRN.HNZ. 2021-12-24T02:41:08.50 0.3 undecidable manual P 35 19.2696 118 0.2 74
IV.EMCN.HNZ. 2021-12-24T02:41:08.97 0.1 undecidable manual P 5 27.1506 50 -0.65 86
IV.ESPC.HHZ. 2021-12-24T02:41:07.63 0.1 negative manual P 6 16.1727 122 -0.12 97
IV.EMPL.HHZ. 2021-12-24T02:41:07.76 0.1 undecidable manual P 347 14.9739 125 0.21 100
IV.ECHR.HHZ. 2021-12-24T02:41:07.82 0.1 negative manual P 332 17.4714 120 -0.16 96
IV.EMFS.HHZ. 2021-12-24T02:41:07.92 0.1 negative manual P 357 19.0698 118 -0.34 93
IV.ESML.HHZ. 2021-12-24T02:41:07.03 0.1 negative manual P 305 13.7751 127 -0.32 93
IV.ESLN.HHZ. 2021-12-24T02:41:07.83 0.1 negative manual P 350 16.4724 122 0.03 100
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
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download