Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 24-01-2021 and time 03:05:01 (UTC) in region 1 km S Giarre (CT)

A magnitude ML 2.4 earthquake occured in region: 1 km S Giarre (CT), on

  • 24-01-2021 03:05:01 (UTC)
  • 24-01-2021 04:05:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7180, 15.1820 at 18 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
Giarre CT 2 27659 27659
Riposto CT 3 14838 42497
Sant'Alfio CT 5 1582 44079
Mascali CT 5 14282 58361
Santa Venerina CT 5 8592 66953
Milo CT 6 1087 68040
Zafferana Etnea CT 7 9517 77557
Fiumefreddo di Sicilia CT 9 9623 87180
Piedimonte Etneo CT 10 3963 91143
Acireale CT 12 52622 143765
Calatabiano CT 13 5308 149073
Aci Catena CT 13 29851 178924
Aci Sant'Antonio CT 13 17984 196908
Viagrande CT 14 8563 205471
Linguaglossa CT 14 5403 210874
Trecastagni CT 14 10910 221784
Aci Bonaccorsi CT 15 3524 225308
Pedara CT 15 14102 239410
Valverde CT 16 7840 247250
Giardini-Naxos ME 16 9415 256665
Gaggi ME 16 3184 259849
San Giovanni la Punta CT 17 23060 282909
Taormina ME 17 10960 293869
Castelmola ME 18 1088 294957
Nicolosi CT 18 7463 302420
San Gregorio di Catania CT 18 11966 314386
Aci Castello CT 18 18723 333109
Tremestieri Etneo CT 18 20589 353698
Castiglione di Sicilia CT 19 3215 356913
Mascalucia CT 20 31958 388871
Sant'Agata li Battiati CT 20 9479 398350
Graniti ME 20 1492 399842
Motta Camastra ME 20 845 400687

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km N of Acireale (52622 inhabitants)
25 Km NE of Catania (314555 inhabitants)
60 Km SW of Reggio di Calabria (183035 inhabitants)
62 Km SW of Messina (238439 inhabitants)
74 Km N of Siracusa (122291 inhabitants)
97 Km NE of Ragusa (73313 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 2.4 2021-01-24
03:05:01		 37.718 15.1822 18 2021-07-12
16:55:09		 Bollettino Sismico Italiano INGV 89746741
Reviewed
Rev200 		ML 2.1 2021-01-24
03:05:01		 37.748 15.128 15 2021-05-03
17:31:37		 Sala Operativa INGV_OE (Catania) 86514561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-24 03:05:01 ± 0.12
Latitude 37.7180 ± 0.0045
Longitude 15.1822 ± 0.0125
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89746741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1092
Semi-minor axis of confidence ellipse (meter) 114
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 91
Circular confidence region, given by single value of horizontal uncertainty (meter) 1090.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 157
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.82198
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 89746741
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-03 17:31:22

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 86514561
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-24 03:20:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2021-01-24T03:05:29.30 0.6 undecidable manual S 203 91.242 95 0.82 35
IV.HAVL.HHZ. 2021-01-24T03:05:27.60 0.6 undecidable manual S 184 84.249 96 0.97 33
IV.SSY.HHZ. 2021-01-24T03:05:21.70 0.6 undecidable manual S 189 62.8926 98 0.75 38
IV.MUCR.HHZ. 2021-01-24T03:05:17.10 0.6 undecidable manual S 323 45.0216 102 0.84 38
IV.HCRL.HHZ. 2021-01-24T03:05:17.90 0.6 undecidable manual S 195 50.0166 101 0.34 44
IV.HAGA.HHZ. 2021-01-24T03:05:17.40 0.6 undecidable manual S 183 48.1185 101 0.34 44
IV.HMDC.HHZ. 2021-01-24T03:05:16.93 0.3 undecidable manual P 203 91.242 95 -0.18 63
IV.HLNI.HHZ. 2021-01-24T03:05:16.80 0.6 undecidable manual S 214 49.2174 101 -0.56 41
IV.HAVL.HHZ. 2021-01-24T03:05:15.69 0.1 undecidable manual P 184 84.249 96 -0.35 83
IV.MSFR.HHZ. 2021-01-24T03:05:13.35 0.3 undecidable manual P 304 62.493 98 0.65 60
IV.NOV.HHZ. 2021-01-24T03:05:13.90 0.6 undecidable manual S 353 34.6431 107 0.34 46
IV.SSY.HHZ. 2021-01-24T03:05:12.56 0.3 undecidable manual P 189 62.8926 98 -0.21 66
IV.AIO.HHZ. 2021-01-24T03:05:12.60 0.6 undecidable manual S 9 28.4493 112 0.59 43
IV.GALF.HHZ. 2021-01-24T03:05:11.99 0.3 undecidable manual P 269 54.0015 100 0.57 63
IV.MUCR.HHZ. 2021-01-24T03:05:10.14 0.3 undecidable manual P 323 45.0216 102 0.09 71
IV.HCRL.HHZ. 2021-01-24T03:05:10.59 0.1 undecidable manual P 195 50.0166 101 -0.22 91
IV.HLNI.HHZ. 2021-01-24T03:05:10.05 0.1 positive manual P 214 49.2174 101 -0.64 80
IV.HAGA.HHZ. 2021-01-24T03:05:10.23 0.3 undecidable manual P 183 48.1185 101 -0.29 67
IV.MPNC.HHZ. 2021-01-24T03:05:10.89 0.3 undecidable manual P 17 49.8168 101 0.11 70
IV.ENIC.HHZ. 2021-01-24T03:05:09.40 0.6 undecidable manual S 236 17.0718 129 0.03 50
IV.ECTS.HHZ. 2021-01-24T03:05:09.40 0.6 undecidable manual S 344 18.9699 125 -0.38 47
IV.EPOZ.HHZ. 2021-01-24T03:05:08.47 0.6 undecidable manual S 174 5.1948 161 0.96 37
IV.EFIU.HHE. 2021-01-24T03:05:08.20 0.6 undecidable manual S 17 8.2806 151 0.35 47
IV.ECBD.HHN. 2021-01-24T03:05:08.20 0.6 undecidable manual S 309 10.878 143 -0.01 51
IV.NOV.HHZ. 2021-01-24T03:05:08.36 0.3 undecidable manual P 353 34.6431 107 -0.14 71
IV.AIO.HHZ. 2021-01-24T03:05:07.53 0.1 positive manual P 9 28.4493 112 -0.07 97
IV.EVRN.HHZ. 2021-01-24T03:05:07.60 0.3 undecidable manual S 232 5.1948 161 0.09 75
IV.ESAL.HHE. 2021-01-24T03:05:07.80 0.6 undecidable manual S 315 5.8941 159 0.23 48
IV.ESML.HHZ. 2021-01-24T03:05:07.37 0.3 undecidable manual P 247 28.749 112 -0.28 69
IV.EMFO.HHE. 2021-01-24T03:05:07.00 0.6 undecidable manual S 284 8.2806 151 -0.85 41
IV.EMSG.HHZ. 2021-01-24T03:05:07.00 0.3 undecidable manual P 299 23.3544 118 0.11 73
IV.ENIC.HHZ. 2021-01-24T03:05:06.37 0.6 undecidable manual P 236 17.0718 129 0.29 47
IV.EPOZ.HHZ. 2021-01-24T03:05:05.17 0.1 undecidable manual P 174 5.1948 161 0.17 99
IV.EFIU.HHE. 2021-01-24T03:05:05.01 0.1 undecidable manual P 17 8.2806 151 -0.19 99
IV.ECBD.HHN. 2021-01-24T03:05:05.18 0.1 undecidable manual P 309 10.878 143 -0.23 97
IV.EMCN.HHZ. 2021-01-24T03:05:05.74 0.3 undecidable manual P 302 15.3735 132 -0.14 74
IV.ECTS.HHZ. 2021-01-24T03:05:05.91 0.3 undecidable manual P 344 18.9699 125 -0.4 69
IV.EVRN.HHZ. 2021-01-24T03:05:04.85 0.1 positive manual P 232 5.1948 161 -0.15 100
IV.ESAL.HHE. 2021-01-24T03:05:04.81 0.1 undecidable manual P 315 5.8941 159 -0.23 98
IV.EMFO.HHE. 2021-01-24T03:05:04.87 0.1 undecidable manual P 284 8.2806 151 -0.33 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNN. ML:3.2 0.016149999999999998 0.18 AML other m 2021-01-24T03:05:07.83
IV.EVRN.HHN. ML:3.2 0.013300000000000001 0.14 AML other m 2021-01-24T03:05:07.84
IV.EVRN.HNE. ML:3.1 0.012580000000000001 1.22 AML other m 2021-01-24T03:05:07.96
IV.EVRN.HHE. ML:3.2 0.015149999999999999 1.22 AML other m 2021-01-24T03:05:07.96
IV.EPOZ.HHE. ML:2.4 0.002335 0.88 AML other m 2021-01-24T03:05:09.30
IV.EPOZ.HHN. ML:2.4 0.002265 0.4 AML other m 2021-01-24T03:05:10.35
IV.ENIC.HHE. ML:2.7 0.00304 0.96 AML other m 2021-01-24T03:05:11.35
IV.ENIC.HHN. ML:2.6 0.0028650000000000004 0.22 AML other m 2021-01-24T03:05:11.85
IV.ESML.HHE. ML:2.2 0.00076 0.52 AML other m 2021-01-24T03:05:13.16
IV.AIO.HHE. ML:2.0 0.0005290000000000001 0.2 AML other m 2021-01-24T03:05:13.46
IV.NOV.HHE. ML:2.5 0.00127 0.6 AML other m 2021-01-24T03:05:14.49
IV.AIO.HHN. ML:2.0 0.0005045 0.84 AML other m 2021-01-24T03:05:14.11
IV.EMSG.HHE. ML:2.6 0.00195 1.52 AML other m 2021-01-24T03:05:15.01
IV.EMSG.HHN. ML:2.6 0.0019199999999999998 0.74 AML other m 2021-01-24T03:05:15.63
IV.NOV.HHN. ML:2.4 0.0009059999999999999 0.5 AML other m 2021-01-24T03:05:15.82
IV.ESML.HHN. ML:2.0 0.000435 0.84 AML other m 2021-01-24T03:05:17.43
IV.MUCR.HHE. ML:2.0 0.00030199999999999997 0.38 AML other m 2021-01-24T03:05:18.62
IV.MUCR.HHN. ML:1.9 0.00023249999999999999 0.42 AML other m 2021-01-24T03:05:19.66
IV.MPNC.HHE. ML:2.1 0.00034550000000000005 0.66 AML other m 2021-01-24T03:05:22.39
IV.MPNC.HHN. ML:2.2 0.0003885 0.58 AML other m 2021-01-24T03:05:22.77
IV.GALF.HHE. ML:2.2 0.00038649999999999996 0.42 AML other m 2021-01-24T03:05:25.48
IV.GALF.HHN. ML:2.2 0.0003575 1.62 AML other m 2021-01-24T03:05:25.04
IV.HAVL.HHE. ML:2.5 0.000431 0.5 AML other m 2021-01-24T03:05:28.25
IV.HAVL.HHN. ML:2.6 0.00047999999999999996 0.26 AML other m 2021-01-24T03:05:28.25
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
Waveforms Seismic signals in miniseed + resp format Download