Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 30-01-2021 and time 03:16:36 (Italy) in region 2 km SE Milo (CT)

A magnitude ML 2.1 earthquake occured in region: 2 km SE Milo (CT), on

  • 30-01-2021 02:16:36 (UTC)
  • 30-01-2021 03:16:36 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7100, 15.1270 at 11 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
Milo CT 2 1087 1087
Zafferana Etnea CT 3 9517 10604
Santa Venerina CT 3 8592 19196
Sant'Alfio CT 4 1582 20778
Giarre CT 6 27659 48437
Riposto CT 7 14838 63275
Mascali CT 8 14282 77557
Trecastagni CT 11 10910 88467
Viagrande CT 11 8563 97030
Acireale CT 11 52622 149652
Aci Sant'Antonio CT 12 17984 167636
Fiumefreddo di Sicilia CT 12 9623 177259
Pedara CT 12 14102 191361
Aci Catena CT 12 29851 221212
Piedimonte Etneo CT 12 3963 225175
Aci Bonaccorsi CT 13 3524 228699
Nicolosi CT 14 7463 236162
Valverde CT 15 7840 244002
Linguaglossa CT 15 5403 249405
San Giovanni la Punta CT 15 23060 272465
Calatabiano CT 16 5308 277773
Tremestieri Etneo CT 16 20589 298362
San Gregorio di Catania CT 16 11966 310328
Mascalucia CT 16 31958 342286
Aci Castello CT 17 18723 361009
Sant'Agata li Battiati CT 17 9479 370488
Gravina di Catania CT 18 25838 396326
San Pietro Clarenza CT 18 7743 404069
Belpasso CT 19 28108 432177
Ragalna CT 19 3924 436101
Gaggi ME 19 3184 439285
Camporotondo Etneo CT 19 5023 444308
Castiglione di Sicilia CT 19 3215 447523
Giardini-Naxos ME 20 9415 456938

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km N of Acireale (52622 inhabitants)
23 Km N of Catania (314555 inhabitants)
64 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
74 Km N of Siracusa (122291 inhabitants)
94 Km NE of Ragusa (73313 inhabitants)
97 Km E of Caltanissetta (63360 inhabitants)
99 Km NE of Vittoria (63339 inhabitants)
100 Km NE of Modica (54633 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 2.1 2021-01-30
02:16:36		 37.7103 15.1268 11 2021-07-12
16:54:59		 Bollettino Sismico Italiano INGV 87235311
Reviewed
Rev200 		ML 1.8 2021-01-30
02:16:36		 37.722 15.123 8 2021-07-12
16:12:55		 Sala Operativa INGV_OE (Catania) 86702471
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-30 02:16:36 ± 0.09
Latitude 37.7103 ± 0.0054
Longitude 15.1268 ± 0.0080
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87235311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 750
Semi-minor axis of confidence ellipse (meter) 534
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 88
Number of associated phases, regardless of their use for origin computation 38
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.77791
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 87235311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-17 10:10:48

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 86702471
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-30 02:41:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PETRA.HHZ. 2021-01-30T02:17:04.83 3.0 undecidable manual S -0.24 0
IV.HAVL.HHZ. 2021-01-30T02:17:02.33 0.3 undecidable manual S 180 83.25 50 1.19 44
IV.HCRL.HHZ. 2021-01-30T02:16:52.32 0.3 undecidable manual S 190 48.1185 50 0.57 62
IV.HAGA.HHZ. 2021-01-30T02:16:51.86 0.3 undecidable manual S 177 47.2194 50 0.34 66
IV.RAFF.HHZ. 2021-01-30T02:16:51.36 0.1 undecidable manual P 231 86.3469 50 0.21 84
IV.HAVL.HHZ. 2021-01-30T02:16:50.12 0.1 undecidable manual P 180 83.25 50 -0.55 78
IV.SSY.HHZ. 2021-01-30T02:16:47.24 0.3 undecidable manual P 184 61.494 50 -0.07 68
IV.GALF.HHZ. 2021-01-30T02:16:46.05 3.0 undecidable manual P 0.62 0
IV.HCRL.HHZ. 2021-01-30T02:16:44.95 0.1 undecidable manual P 190 48.1185 50 -0.3 88
IV.MUCR.HHZ. 2021-01-30T02:16:44.80 0.6 undecidable manual P 329 43.0236 50 0.33 44
IV.HAGA.HHZ. 2021-01-30T02:16:44.38 0.3 undecidable manual P 177 47.2194 50 -0.74 58
IV.ECTS.HHZ. 2021-01-30T02:16:44.01 0.3 undecidable manual S 358 19.0698 119 0.05 74
IV.HLNI.HHZ. 2021-01-30T02:16:44.37 0.6 undecidable manual P 209 46.0206 50 -0.55 42
IV.EMCN.HNZ. 2021-01-30T02:16:43.19 0.3 undecidable manual S 318 12.1767 131 1.2 50
IV.ESCV.HHN. 2021-01-30T02:16:42.37 0.3 undecidable manual P 279 27.6501 50 0.27 69
IV.AIO.HHZ. 2021-01-30T02:16:42.29 0.3 undecidable manual P 18 30.3474 50 -0.23 70
IV.EPZF.HHZ. 2021-01-30T02:16:42.05 0.6 undecidable manual P 298 26.8509 50 0.08 48
IV.ESLN.HHZ. 2021-01-30T02:16:42.00 0.3 undecidable manual S 262 13.4754 128 -0.36 70
IV.ESML.HHZ. 2021-01-30T02:16:41.51 0.6 undecidable manual P 245 24.0537 50 -0.03 49
IV.EMSG.HHZ. 2021-01-30T02:16:41.01 0.6 undecidable manual P 308 19.7691 118 0.13 48
IV.EPOZ.HHZ. 2021-01-30T02:16:41.37 0.3 undecidable manual S 128 6.8931 147 0.58 66
IV.ESPC.HHN. 2021-01-30T02:16:41.28 0.1 undecidable manual S 257 8.9799 140 0.06 100
IV.EVRN.HHZ. 2021-01-30T02:16:40.42 0.1 undecidable manual S 162 2.4975 167 0.23 97
IV.ECTS.HHZ. 2021-01-30T02:16:40.53 0.1 undecidable manual P 358 19.0698 119 -0.22 95
IV.EMNR.HHZ. 2021-01-30T02:16:40.49 0.3 undecidable manual P 323 14.7741 126 0.47 68
IV.EPIT.HHN. 2021-01-30T02:16:40.28 0.3 undecidable manual P 331 12.7761 130 0.57 66
IV.EMPL.HHZ. 2021-01-30T02:16:39.62 0.3 undecidable manual P 256 14.1747 127 -0.31 70
IV.ESLN.HHZ. 2021-01-30T02:16:39.35 0.3 undecidable manual P 262 13.4754 128 -0.48 68
IV.ECBD.HHN. 2021-01-30T02:16:39.11 0.3 undecidable manual P 335 8.4804 142 0 76
IV.EMFS.HHE. 2021-01-30T02:16:39.20 0.1 undecidable manual P 275 11.3775 133 -0.3 94
IV.EMCN.HNZ. 2021-01-30T02:16:39.68 0.3 undecidable manual P 318 12.1767 131 0.06 74
IV.ENIC.HHZ. 2021-01-30T02:16:39.88 0.3 undecidable manual P 227 12.7761 130 0.17 73
IV.EFIU.HHE. 2021-01-30T02:16:39.21 0.1 negative manual P 40 11.4774 133 -0.3 94
IV.ESPC.HHN. 2021-01-30T02:16:38.90 0.1 negative manual P 257 8.9799 140 -0.27 95
IV.ESAL.HHE. 2021-01-30T02:16:38.55 0.1 positive manual P 8 4.995 155 -0.19 98
IV.EVRN.HHZ. 2021-01-30T02:16:38.36 0.1 positive manual P 162 2.4975 167 -0.21 98
IV.EMFO.HHE. 2021-01-30T02:16:38.53 0.1 positive manual P 311 4.2957 158 -0.15 99
IV.EPOZ.HHZ. 2021-01-30T02:16:38.98 0.1 negative manual P 128 6.8931 147 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHN. ML:2.5 0.004445 0.18 AML other m 2021-01-30T02:16:42.25
IV.EPOZ.HHE. ML:2.4 0.004070003500000001 0.1408 AML other m 2021-01-30T02:16:43.33
IV.ENIC.HHE. ML:2.4 0.002815 1.84 AML other m 2021-01-30T02:16:44.07
IV.ENIC.HNE. ML:2.4 0.0029664185 1.8304 AML other m 2021-01-30T02:16:44.00
IV.ECTS.HHE. ML:1.8 0.000483 0.24 AML other m 2021-01-30T02:16:44.98
IV.EMCN.HHE. ML:2.6 0.003888356 0.16 AML other m 2021-01-30T02:16:45.37
IV.ENIC.HNN. ML:2.3 0.0020528206999999997 0.1216 AML other m 2021-01-30T02:16:45.82
IV.ECTS.HHN. ML:1.7 0.00041349999999999997 0.78 AML other m 2021-01-30T02:16:46.39
IV.EMCN.HNN. ML:2.5 0.0038140049999999997 0.2704 AML other m 2021-01-30T02:16:46.18
IV.EMCN.HHN. ML:2.6 0.0038634424999999997 0.2608 AML other m 2021-01-30T02:16:46.18
IV.EMSG.HHN. ML:2.4 0.0016600615 1.4992 AML other m 2021-01-30T02:16:47.05
IV.ESML.HHN. ML:1.9 0.0004630757 0.3616 AML other m 2021-01-30T02:16:47.86
IV.ENIC.HHN. ML:2.3 0.002186608 1.6192 AML other m 2021-01-30T02:16:48.01
IV.AIO.HHE. ML:1.7 0.0002565 0.96 AML other m 2021-01-30T02:16:48.57
IV.ESML.HHE. ML:1.9 0.00050154075 0.3408 AML other m 2021-01-30T02:16:48.31
IV.AIO.HHN. ML:1.7 0.0002559962 0.3392 AML other m 2021-01-30T02:16:48.72
IV.EPZF.HHE. ML:2.0 0.0006336364 0.64 AML other m 2021-01-30T02:16:49.39
IV.EPZF.HHN. ML:2.0 0.0005569667499999999 0.2992 AML other m 2021-01-30T02:16:51.18
IV.HCRL.HHE. ML:2.0 0.0002565 1.16 AML other m 2021-01-30T02:16:52.38
IV.HLNI.HHE. ML:1.4 0.00007940112500000001 0.0992 AML other m 2021-01-30T02:16:53.78
IV.HCRL.HHN. ML:1.8 0.0001688293 0.2192 AML other m 2021-01-30T02:16:54.34
IV.HLNI.HHN. ML:1.3 0.00006058079000000001 0.2608 AML other m 2021-01-30T02:16:55.64
IV.SSY.HHN. ML:2.5 0.00067955255 0.1984 AML other m 2021-01-30T02:16:59.29
IV.SSY.HHE. ML:2.2 0.00033135570000000005 0.2816 AML other m 2021-01-30T02:17:00.71
IV.GALF.HHE. ML:2.0 0.00026000000000000003 0.42 AML other m 2021-01-30T02:17:01.64
IV.GALF.HHN. ML:2.0 0.000277 0.4 AML other m 2021-01-30T02:17:01.95
IV.HAVL.HHN. ML:2.2 0.00020238045 0.2384 AML other m 2021-01-30T02:17:03.02
IV.HAVL.HHE. ML:2.2 0.00019967394999999998 0.1584 AML other m 2021-01-30T02:17:07.18
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