Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 06-05-2021 and time 18:07:27 (Italy) in region 5 km SE Santa Venerina (CT)

A magnitude ML 1.5 earthquake occured in region: 5 km SE Santa Venerina (CT), on

  • 06-05-2021 16:07:27 (UTC)
  • 06-05-2021 18:07:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6640, 15.1850 at 14 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 5 8592 8592
Acireale CT 6 52622 61214
Giarre CT 7 27659 88873
Aci Catena CT 8 29851 118724
Riposto CT 8 14838 133562
Zafferana Etnea CT 8 9517 143079
Aci Sant'Antonio CT 8 17984 161063
Milo CT 9 1087 162150
Sant'Alfio CT 10 1582 163732
Viagrande CT 10 8563 172295
Aci Bonaccorsi CT 10 3524 175819
Mascali CT 11 14282 190101
Trecastagni CT 11 10910 201011
Valverde CT 11 7840 208851
Pedara CT 12 14102 222953
Aci Castello CT 12 18723 241676
San Giovanni la Punta CT 12 23060 264736
San Gregorio di Catania CT 13 11966 276702
Tremestieri Etneo CT 14 20589 297291
Fiumefreddo di Sicilia CT 15 9623 306914
Sant'Agata li Battiati CT 15 9479 316393
Nicolosi CT 15 7463 323856
Mascalucia CT 15 31958 355814
Gravina di Catania CT 16 25838 381652
Piedimonte Etneo CT 16 3963 385615
San Pietro Clarenza CT 17 7743 393358
Calatabiano CT 18 5308 398666
Camporotondo Etneo CT 19 5023 403689
Catania CT 20 314555 718244
Belpasso CT 20 28108 746352

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km N of Acireale (52622 inhabitants)
20 Km NE of Catania (314555 inhabitants)
64 Km SW of Reggio di Calabria (183035 inhabitants)
67 Km SW of Messina (238439 inhabitants)
68 Km N of Siracusa (122291 inhabitants)
91 Km NE of Ragusa (73313 inhabitants)
97 Km NE of Modica (54633 inhabitants)
98 Km NE of Vittoria (63339 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 1.5 2021-05-06
16:07:27		 37.6642 15.1853 14 2021-12-29
11:12:04		 Bollettino Sismico Italiano INGV 91079831
Reviewed
Rev200 		ML 1.1 2021-05-06
16:07:27		 37.664 15.177 17 2021-10-08
11:07:45		 Sala Operativa INGV_OE (Catania) 89844371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-06 16:07:27 ± 0.1
Latitude 37.6642 ± 0.0045
Longitude 15.1853 ± 0.0068
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 91079831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 525
Semi-minor axis of confidence ellipse (meter) 285
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00809
Epicentral distance of station farthest from the epicenter (degree) 0.40110
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 91079831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-11 08:19:26

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 89844371
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-05-06 16:16:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECZM.HHZ. 2021-05-06T16:07:37.44 0.6 undecidable manual S 287 25.752 103 0.1 48
IV.EMSG.HHZ. 2021-05-06T16:07:37.38 0.3 undecidable manual S 310 26.9508 102 -0.28 70
IV.HLNI.HHZ. 2021-05-06T16:07:36.28 0.1 undecidable manual P 218 44.5221 96 0.06 94
IV.EPIT.HHZ. 2021-05-06T16:07:36.12 0.3 undecidable manual S 325 19.869 110 0.3 70
IV.EMNR.HHZ. 2021-05-06T16:07:36.55 0.6 undecidable manual S 321 21.9669 107 0.2 48
IV.EMCN.HHZ. 2021-05-06T16:07:35.78 0.6 undecidable manual S 317 19.3695 111 0.08 49
IV.EMPL.HHZ. 2021-05-06T16:07:35.43 0.3 undecidable manual S 275 18.9699 112 -0.17 73
IV.ECBD.HHZ. 2021-05-06T16:07:35.06 0.3 undecidable manual S 326 15.4734 119 0.29 71
IV.ESLN.HHZ. 2021-05-06T16:07:35.31 0.3 undecidable manual S 280 18.7701 112 -0.25 71
IV.AIO.HHE. 2021-05-06T16:07:34.31 0.1 undecidable manual P 7 34.3434 98 -0.34 91
IV.EMFO.HHZ. 2021-05-06T16:07:34.08 0.3 undecidable manual S 314 11.4774 131 0.18 73
IV.EPZF.HHZ. 2021-05-06T16:07:34.62 0.6 undecidable manual P 302 33.8439 98 0.05 48
IV.ESPC.HHZ. 2021-05-06T16:07:34.46 0.6 undecidable manual S 283 14.1747 123 -0.01 50
IV.ESAL.HHZ. 2021-05-06T16:07:33.50 0.3 undecidable manual S 336 11.0778 132 -0.3 71
IV.EMSG.HHZ. 2021-05-06T16:07:33.59 0.3 undecidable manual P 310 26.9508 102 0.05 73
IV.ESVO.HHZ. 2021-05-06T16:07:33.34 0.6 undecidable manual P 300 24.1536 105 0.23 47
IV.ECZM.HHZ. 2021-05-06T16:07:33.38 0.1 undecidable manual P 287 25.752 103 0.03 98
IV.EMNR.HHZ. 2021-05-06T16:07:32.64 0.1 undecidable manual P 321 21.9669 107 -0.14 97
IV.EMCN.HHZ. 2021-05-06T16:07:32.45 0.1 undecidable manual P 317 19.3695 111 0.04 99
IV.EMPL.HHZ. 2021-05-06T16:07:32.40 0.3 undecidable manual P 275 18.9699 112 0.05 74
IV.EPIT.HHZ. 2021-05-06T16:07:32.38 0.3 undecidable manual P 325 19.869 110 -0.1 73
IV.ESLN.HHZ. 2021-05-06T16:07:31.90 0.1 undecidable manual P 280 18.7701 112 -0.43 92
IV.ESPC.HHZ. 2021-05-06T16:07:31.75 0.1 undecidable manual P 283 14.1747 123 0.05 99
IV.ESAL.HHZ. 2021-05-06T16:07:31.37 0.1 undecidable manual P 336 11.0778 132 0.06 100
IV.EMFO.HHZ. 2021-05-06T16:07:31.49 0.1 undecidable manual P 314 11.4774 131 0.12 99
IV.ECBD.HHZ. 2021-05-06T16:07:31.80 0.1 undecidable manual P 326 15.4734 119 -0.07 99
IV.EPOZ.HHZ. 2021-05-06T16:07:30.95 0.3 undecidable manual P 18 0.8991 176 0.34 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESAL.HHN. ML:1.4 0.000219 0.36 AML other m 2021-05-06T16:07:34.53
IV.ESAL.HHE. ML:1.5 0.0002755 0.42 AML other m 2021-05-06T16:07:36.41
IV.EPIT.HHN. ML:1.5 0.0002055 0.42 AML other m 2021-05-06T16:07:36.46
IV.EMPL.HHE. ML:1.4 0.000183 0.84 AML other m 2021-05-06T16:07:36.28
IV.EMPL.HHN. ML:1.6 0.00026849999999999997 0.2 AML other m 2021-05-06T16:07:37.56
IV.EPIT.HHE. ML:1.5 0.000189 0.52 AML other m 2021-05-06T16:07:37.85
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