Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 16-01-2021 and time 03:38:11 (Italy) in region 1 km NE San Giovanni la Punta (CT)

A magnitude ML 2.3 earthquake occured in region: 1 km NE San Giovanni la Punta (CT), on

  • 16-01-2021 02:38:11 (UTC)
  • 16-01-2021 03:38:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.5840, 15.1020 at 17 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
San Giovanni la Punta CT 1 23060 23060
Aci Bonaccorsi CT 2 3524 26584
Valverde CT 2 7840 34424
San Gregorio di Catania CT 2 11966 46390
Tremestieri Etneo CT 3 20589 66979
Viagrande CT 3 8563 75542
Sant'Agata li Battiati CT 3 9479 85021
Aci Sant'Antonio CT 3 17984 103005
Aci Catena CT 4 29851 132856
Gravina di Catania CT 4 25838 158694
Trecastagni CT 4 10910 169604
Mascalucia CT 4 31958 201562
Aci Castello CT 5 18723 220285
Pedara CT 5 14102 234387
Acireale CT 7 52622 287009
San Pietro Clarenza CT 7 7743 294752
Nicolosi CT 8 7463 302215
Camporotondo Etneo CT 9 5023 307238
Catania CT 9 314555 621793
Misterbianco CT 11 49410 671203
Belpasso CT 11 28108 699311
Santa Venerina CT 12 8592 707903
Zafferana Etnea CT 13 9517 717420
Motta Sant'Anastasia CT 14 12116 729536
Ragalna CT 15 3924 733460
Milo CT 16 1087 734547
Paternò CT 18 48228 782775
Giarre CT 18 27659 810434
Sant'Alfio CT 18 1582 812016
Riposto CT 19 14838 826854
Santa Maria di Licodia CT 19 7641 834495

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km SW of Acireale (52622 inhabitants)
9 Km N of Catania (314555 inhabitants)
61 Km N of Siracusa (122291 inhabitants)
76 Km SW of Reggio di Calabria (183035 inhabitants)
79 Km SW of Messina (238439 inhabitants)
80 Km NE of Ragusa (73313 inhabitants)
86 Km NE of Modica (54633 inhabitants)
86 Km NE of Vittoria (63339 inhabitants)
92 Km E of Caltanissetta (63360 inhabitants)
95 Km NE of Gela (75827 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 2.3 2021-01-16
02:38:11		 37.5837 15.1023 17 2021-07-12
16:54:59		 Bollettino Sismico Italiano INGV 87271791
Reviewed
Rev200 		ML 1.9 2021-01-16
02:38:10		 37.582 15.085 21 2021-03-04
11:54:30		 Sala Operativa INGV_OE (Catania) 86287221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 02:38:11 ± 0.16
Latitude 37.5837 ± 0.0054
Longitude 15.1023 ± 0.0102
Depth (km) 17 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87271791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 901
Semi-minor axis of confidence ellipse (meter) 430
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 278
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
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) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.68978
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:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 86287221
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-16 03:03:05

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 87271791
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-04 11:54:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-01-16T02:38:32.65 0.6 undecidable manual S 179 69.2751 96 0.39 43
IV.HVZN.HNZ. 2021-01-16T02:38:29.61 0.3 undecidable manual S 217 56.3991 98 0.74 60
IV.NOV.HHZ. 2021-01-16T02:38:27.77 0.6 undecidable manual S 3 49.4172 99 0.77 39
IV.SSY.HHZ. 2021-01-16T02:38:26.95 0.1 undecidable manual S 183 47.3193 100 0.49 89
IV.RAFF.HHZ. 2021-01-16T02:38:24.35 0.1 undecidable manual P 239 76.5678 95 -0.14 91
IV.HCRL.HHN. 2021-01-16T02:38:23.15 0.6 undecidable manual S 190 33.9438 105 0.19 49
IV.HAVL.HHZ. 2021-01-16T02:38:23.14 0.3 undecidable manual P 179 69.2751 96 -0.24 68
IT.LNT.HGZ. 2021-01-16T02:38:22.91 0.1 undecidable manual S 195 33.9438 105 -0.06 100
IV.HLNI.HHZ. 2021-01-16T02:38:22.41 0.3 undecidable manual S 218 33.0447 106 -0.33 71
IV.HAGA.HHZ. 2021-01-16T02:38:22.82 0.6 undecidable manual S 172 33.4443 106 -0.03 51
IV.CAGR.HHE. 2021-01-16T02:38:22.43 0.3 undecidable manual P 275 53.1024 98 1.52 41
IV.HVZN.HNZ. 2021-01-16T02:38:21.18 0.6 undecidable manual P 217 56.3991 98 -0.24 46
IV.NOV.HHZ. 2021-01-16T02:38:20.51 0.6 undecidable manual P 3 49.4172 99 0.17 47
IV.SSY.HHZ. 2021-01-16T02:38:20.46 1.0 undecidable manual P 183 47.3193 100 0.43 22
IV.ESML.HHZ. 2021-01-16T02:38:19.52 0.6 undecidable manual S 281 19.9689 121 0 51
IV.AIO.HHE. 2021-01-16T02:38:19.68 0.6 undecidable manual P 15 44.5221 101 0.08 49
IV.EVRN.HHZ. 2021-01-16T02:38:18.16 0.3 undecidable manual S 14 12.0768 138 0.28 74
IV.ESCV.HHN. 2021-01-16T02:38:18.05 0.3 undecidable manual P 306 31.0467 107 0.46 69
IV.EPOZ.HHZ. 2021-01-16T02:38:18.44 0.3 undecidable manual S 38 12.3765 137 0.51 70
IV.ENIC.HHZ. 2021-01-16T02:38:17.57 0.3 undecidable manual S 307 8.88 147 0.21 77
IV.HLNI.HHZ. 2021-01-16T02:38:17.32 0.3 undecidable manual P 218 33.0447 106 -0.56 67
IV.HAGA.HHZ. 2021-01-16T02:38:17.44 0.6 undecidable manual P 172 33.4443 106 -0.5 46
IV.ECTS.HHZ. 2021-01-16T02:38:17.94 1.0 undecidable manual P 3 33.1446 106 0.04 25
IV.HCRL.HHN. 2021-01-16T02:38:17.78 0.6 undecidable manual P 190 33.9438 105 -0.23 48
IT.LNT.HGZ. 2021-01-16T02:38:17.61 0.6 undecidable manual P 195 33.9438 105 -0.4 47
IV.ESAL.HHE. 2021-01-16T02:38:16.14 1.0 undecidable manual P 8 19.2696 122 0.22 25
IV.ECHR.HNZ. 2021-01-16T02:38:16.17 0.3 undecidable manual P 304 20.1687 120 0.12 76
IV.EPOZ.HHZ. 2021-01-16T02:38:15.14 0.6 undecidable manual P 38 12.3765 137 0.04 52
IV.EMFS.HHZ. 2021-01-16T02:38:15.10 0.1 undecidable manual P 329 17.6712 125 -0.62 89
IV.EMPL.HHZ. 2021-01-16T02:38:15.25 0.3 undecidable manual P 312 15.6732 129 -0.23 74
IV.ESML.HHZ. 2021-01-16T02:38:15.72 0.1 undecidable manual P 281 19.9689 121 -0.3 97
IV.ESLN.HHZ. 2021-01-16T02:38:15.07 0.1 undecidable manual P 317 16.5723 127 -0.51 93
IV.EVRN.HHZ. 2021-01-16T02:38:15.04 0.6 undecidable manual P 14 12.0768 138 -0.03 52
IV.ENIC.HHZ. 2021-01-16T02:38:14.84 0.3 undecidable manual P 307 8.88 147 0.07 78
IV.ESPC.HHN. 2021-01-16T02:38:14.66 0.3 undecidable manual P 331 13.7751 134 -0.59 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNN. ML:2.5 0.002645 0.18 AML other m 2021-01-16T02:38:18.38
IV.EVRN.HHN. ML:2.5 0.002615 0.18 AML other m 2021-01-16T02:38:18.38
IV.ENIC.HHE. ML:2.3 0.00163 1.38 AML other m 2021-01-16T02:38:19.07
IV.ENIC.HNE. ML:2.3 0.0018205 1.58 AML other m 2021-01-16T02:38:19.08
IV.ESML.HHN. ML:1.9 0.000446 0.8 AML other m 2021-01-16T02:38:19.90
IV.ENIC.HNN. ML:2.5 0.0030299999999999997 1.6 AML other m 2021-01-16T02:38:19.00
IV.EVRN.HHE. ML:2.4 0.00207 0.68 AML other m 2021-01-16T02:38:20.52
IV.EVRN.HNE. ML:2.3 0.001795 0.3 AML other m 2021-01-16T02:38:20.51
IV.ESML.HHE. ML:1.9 0.0005075 0.68 AML other m 2021-01-16T02:38:20.44
IV.HLNI.HHE. ML:1.7 0.0002098 0.42 AML other m 2021-01-16T02:38:21.68
IV.ENIC.HHN. ML:2.3 0.001835 0.88 AML other m 2021-01-16T02:38:22.58
IV.HLNI.HHN. ML:1.7 0.000178 0.5 AML other m 2021-01-16T02:38:23.31
IV.SSY.HHE. ML:2.6 0.0010229999999999998 0.9 AML other m 2021-01-16T02:38:26.97
IV.SSY.HHN. ML:2.8 0.0017649999999999999 0.98 AML other m 2021-01-16T02:38:30.52
IV.HAVL.HHE. ML:2.4 0.000446 0.94 AML other m 2021-01-16T02:38:34.24
IV.HAVL.HHN. ML:2.4 0.000443 1.4 AML other m 2021-01-16T02:38:34.28
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