Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 29-01-2021 and time 16:25:11 (Italy) in region 3 km SE Santa Venerina (CT)

A magnitude ML 1.9 earthquake occured in region: 3 km SE Santa Venerina (CT), on

  • 29-01-2021 15:25:11 (UTC)
  • 29-01-2021 16:25:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6680, 15.1540 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
Santa Venerina CT 3 8592 8592
Zafferana Etnea CT 5 9517 18109
Acireale CT 6 52622 70731
Milo CT 7 1087 71818
Aci Sant'Antonio CT 7 17984 89802
Aci Catena CT 7 29851 119653
Giarre CT 8 27659 147312
Viagrande CT 8 8563 155875
Riposto CT 9 14838 170713
Trecastagni CT 9 10910 181623
Aci Bonaccorsi CT 9 3524 185147
Sant'Alfio CT 9 1582 186729
Pedara CT 10 14102 200831
Valverde CT 10 7840 208671
Mascali CT 11 14282 222953
San Giovanni la Punta CT 11 23060 246013
San Gregorio di Catania CT 12 11966 257979
Aci Castello CT 12 18723 276702
Tremestieri Etneo CT 12 20589 297291
Nicolosi CT 13 7463 304754
Sant'Agata li Battiati CT 14 9479 314233
Mascalucia CT 14 31958 346191
Gravina di Catania CT 14 25838 372029
Fiumefreddo di Sicilia CT 15 9623 381652
San Pietro Clarenza CT 16 7743 389395
Piedimonte Etneo CT 16 3963 393358
Camporotondo Etneo CT 17 5023 398381
Belpasso CT 18 28108 426489
Calatabiano CT 19 5308 431797
Catania CT 19 314555 746352
Ragalna CT 19 3924 750276
Linguaglossa CT 19 5403 755679

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of Acireale (52622 inhabitants)
19 Km N of Catania (314555 inhabitants)
65 Km SW of Reggio di Calabria (183035 inhabitants)
68 Km SW of Messina (238439 inhabitants)
69 Km N of Siracusa (122291 inhabitants)
91 Km NE of Ragusa (73313 inhabitants)
96 Km NE of Modica (54633 inhabitants)
97 Km NE of Vittoria (63339 inhabitants)
98 Km E of Caltanissetta (63360 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 1.9 2021-01-29
15:25:11		 37.6677 15.1543 10 2021-07-12
16:54:58		 Bollettino Sismico Italiano INGV 87081401
Reviewed
Rev200 		ML 1.4 2021-01-29
15:25:11		 37.682 15.099 7 2021-03-09
11:39:19		 Sala Operativa INGV_OE (Catania) 86692931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-29 15:25:11 ± 0.15
Latitude 37.6677 ± 0.0090
Longitude 15.1543 ± 0.0114
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 87081401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1076
Semi-minor axis of confidence ellipse (meter) 913
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.30937
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 87081401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-09 11:39:10

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 86692931
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-01-29 15:50:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ESML.HHZ. 2021-01-29T15:25:21.30 0.6 undecidable manual S 257 24.753 50 0.15 47
IV.AIO.HHZ. 2021-01-29T15:25:18.63 0.6 undecidable manual P 12 34.3434 50 -0.1 47
IV.ESML.HHZ. 2021-01-29T15:25:17.14 0.3 undecidable manual P 257 24.753 50 -0.11 71
IV.ECTS.HHZ. 2021-01-29T15:25:17.25 0.6 undecidable manual P 353 23.9538 50 0.12 47
IV.ESAL.HHZ. 2021-01-29T15:25:16.91 0.3 undecidable manual S 350 9.879 136 0.02 74
IV.EPIT.HHZ. 2021-01-29T15:25:16.53 0.3 undecidable manual P 332 18.0708 120 0.43 67
IV.EMFO.HHZ. 2021-01-29T15:25:16.97 0.6 undecidable manual S 323 9.3795 138 0.18 48
IV.EMNR.HHZ. 2021-01-29T15:25:16.75 0.3 undecidable manual P 326 20.0688 117 0.31 69
IV.EPOZ.HHZ. 2021-01-29T15:25:16.23 0.3 undecidable manual S 81 2.997 164 0.56 67
IV.EVRN.HHZ. 2021-01-29T15:25:15.45 0.3 undecidable manual S 326 2.8971 164 -0.22 72
IV.ENIC.HHZ. 2021-01-29T15:25:15.58 0.6 undecidable manual P 251 12.3765 130 0.42 45
IV.EFIU.HHZ. 2021-01-29T15:25:15.44 0.3 undecidable manual P 20 14.3745 126 -0.04 73
IV.ESAL.HHZ. 2021-01-29T15:25:14.56 0.1 undecidable manual P 350 9.879 136 -0.23 95
IV.EMFO.HHZ. 2021-01-29T15:25:14.32 0.6 undecidable manual P 323 9.3795 138 -0.41 46
IV.EPOZ.HHZ. 2021-01-29T15:25:14.06 0.1 undecidable manual P 81 2.997 164 -0.03 100
IV.ESPC.HHZ. 2021-01-29T15:25:14.71 0.6 undecidable manual P 284 11.4774 132 -0.31 46
IV.EVRN.HHZ. 2021-01-29T15:25:13.68 0.1 undecidable manual P 326 2.8971 164 -0.4 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HHN. ML:2.1 0.0023362875 0.4224 AML other m 2021-01-29T15:25:15.72
IV.EVRN.HNN. ML:2.1 0.0022732225000000003 0.6656 AML other m 2021-01-29T15:25:15.65
IV.EPOZ.HHN. ML:1.9 0.0013168155000000002 0.2176 AML other m 2021-01-29T15:25:16.35
IV.EPOZ.HHE. ML:1.9 0.001348052 0.2432 AML other m 2021-01-29T15:25:16.45
IV.ENIC.HHN. ML:1.8 0.0007326873000000001 0.7168 AML other m 2021-01-29T15:25:18.12
IV.ENIC.HHE. ML:1.8 0.0007383082000000001 0.1792 AML other m 2021-01-29T15:25:18.71
IV.ESML.HHN. ML:1.4 0.0001596845 3.5456 AML other m 2021-01-29T15:25:22.11
IV.ESML.HHE. ML:1.6 0.00025877315 0.64 AML other m 2021-01-29T15:25:21.68
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