Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 06-05-2021 and time 15:57:32 (Italy) in region 2 km E Santa Venerina (CT)

A magnitude ML 2.1 earthquake occured in region: 2 km E Santa Venerina (CT), on

  • 06-05-2021 13:57:32 (UTC)
  • 06-05-2021 15:57:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6940, 15.1570 at 19 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 2 8592 8592
Zafferana Etnea CT 5 9517 18109
Giarre CT 5 27659 45768
Milo CT 5 1087 46855
Sant'Alfio CT 6 1582 48437
Riposto CT 6 14838 63275
Mascali CT 8 14282 77557
Acireale CT 9 52622 130179
Aci Sant'Antonio CT 10 17984 148163
Aci Catena CT 10 29851 178014
Viagrande CT 11 8563 186577
Trecastagni CT 11 10910 197487
Aci Bonaccorsi CT 11 3524 201011
Pedara CT 12 14102 215113
Fiumefreddo di Sicilia CT 12 9623 224736
Piedimonte Etneo CT 13 3963 228699
Valverde CT 13 7840 236539
San Giovanni la Punta CT 14 23060 259599
Nicolosi CT 14 7463 267062
San Gregorio di Catania CT 15 11966 279028
Tremestieri Etneo CT 15 20589 299617
Aci Castello CT 15 18723 318340
Calatabiano CT 16 5308 323648
Mascalucia CT 16 31958 355606
Sant'Agata li Battiati CT 16 9479 365085
Linguaglossa CT 16 5403 370488
Gravina di Catania CT 17 25838 396326
San Pietro Clarenza CT 18 7743 404069
Camporotondo Etneo CT 19 5023 409092
Giardini-Naxos ME 20 9415 418507
Belpasso CT 20 28108 446615
Gaggi ME 20 3184 449799

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km N of Acireale (52622 inhabitants)
22 Km N of Catania (314555 inhabitants)
63 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
72 Km N of Siracusa (122291 inhabitants)
93 Km NE of Ragusa (73313 inhabitants)
99 Km E of Caltanissetta (63360 inhabitants)
99 Km NE of Modica (54633 inhabitants)
99 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 2.1 2021-05-06
13:57:32		 37.6945 15.1572 19 2021-12-29
11:12:03		 Bollettino Sismico Italiano INGV 90893081
Reviewed
Rev200 		ML 1.6 2021-05-06
13:57:32		 37.735 15.121 19 2021-10-08
10:43:23		 Sala Operativa INGV_OE (Catania) 89840521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-06 13:57:32 ± 0.1
Latitude 37.6945 ± 0.0036
Longitude 15.1572 ± 0.0057
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90893081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 438
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 285
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
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) 0.01799
Epicentral distance of station farthest from the epicenter (degree) 0.47754
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 90893081
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-07 09:31:11

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 89840521
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-05-06 14:31:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOV.HHZ. 2021-05-06T13:57:44.94 0.6 undecidable manual S 357 37.0296 108 -0.26 45
IV.AIO.HHZ. 2021-05-06T13:57:43.75 0.3 undecidable manual S 12 31.4463 112 -0.05 72
IV.MPNC.HHN. 2021-05-06T13:57:42.38 0.1 undecidable manual P 19 53.0025 102 0.16 89
IV.HLNI.HHZ. 2021-05-06T13:57:41.35 0.3 undecidable manual P 213 45.8208 104 0.2 67
IV.EMSG.HHZ. 2021-05-06T13:57:41.91 0.3 undecidable manual S 308 22.9548 122 0.12 72
IV.ESVO.HHE. 2021-05-06T13:57:41.32 0.3 undecidable manual S 295 20.3685 126 0.1 73
IV.MUCR.HHE. 2021-05-06T13:57:41.46 0.6 undecidable manual P 327 45.9207 104 0.3 44
IV.EPIT.HHZ. 2021-05-06T13:57:40.46 0.3 undecidable manual S 326 15.6732 135 0.21 71
IV.EMCN.HHN. 2021-05-06T13:57:40.58 0.3 undecidable manual S 315 15.2736 135 0.41 69
IV.ECTS.HHZ. 2021-05-06T13:57:40.98 0.3 undecidable manual S 351 21.0678 125 -0.38 68
IV.ECNE.HHN. 2021-05-06T13:57:40.48 0.3 undecidable manual S 300 15.7731 134 0.22 71
IV.EMPL.HHZ. 2021-05-06T13:57:40.14 0.3 undecidable manual S 264 16.4724 133 -0.27 70
IV.EMNR.HHZ. 2021-05-06T13:57:40.98 0.3 undecidable manual S 320 17.7711 130 0.31 70
IV.EMFO.HHE. 2021-05-06T13:57:39.03 0.6 undecidable manual S 308 7.4814 156 0.05 50
IV.EFIU.HHZ. 2021-05-06T13:57:39.44 0.3 undecidable manual S 24 11.5773 144 -0.09 74
IV.ECBD.HHN. 2021-05-06T13:57:39.37 0.6 undecidable manual S 327 11.3775 145 -0.13 48
IV.NOV.HHZ. 2021-05-06T13:57:39.69 0.1 undecidable manual P 357 37.0296 108 -0.14 93
IV.EMFS.HHE. 2021-05-06T13:57:39.67 0.3 undecidable manual S 281 14.2746 138 -0.31 70
IV.AIO.HHZ. 2021-05-06T13:57:39.01 0.3 undecidable manual P 12 31.4463 112 -0.01 72
IV.ESPC.HHN. 2021-05-06T13:57:39.19 0.3 undecidable manual S 269 11.3775 145 -0.32 70
IV.EVRN.HHZ. 2021-05-06T13:57:38.76 0.3 undecidable manual S 253 1.998 173 0.17 73
IV.EPZF.HHZ. 2021-05-06T13:57:38.86 0.3 undecidable manual P 299 29.9478 114 0.04 72
IV.EPOZ.HHZ. 2021-05-06T13:57:38.84 0.6 undecidable manual S 132 3.6963 167 0.17 48
IV.EMSG.HHZ. 2021-05-06T13:57:38.06 0.3 undecidable manual P 308 22.9548 122 0.2 71
IV.ESAL.HHZ. 2021-05-06T13:57:38.87 0.3 undecidable manual S 344 6.993 157 -0.06 75
IV.ECNE.HHN. 2021-05-06T13:57:37.36 0.3 undecidable manual P 300 15.7731 134 0.38 69
IV.ECZM.HHN. 2021-05-06T13:57:37.64 0.1 undecidable manual P 280 22.5552 122 -0.17 94
IV.EMNR.HHZ. 2021-05-06T13:57:37.28 0.1 undecidable manual P 320 17.7711 130 0.06 97
IV.EPIT.HHZ. 2021-05-06T13:57:37.06 0.3 undecidable manual P 326 15.6732 135 0.08 73
IV.ESVO.HHE. 2021-05-06T13:57:37.82 0.3 undecidable manual P 295 20.3685 126 0.28 70
IV.ECTS.HHZ. 2021-05-06T13:57:37.32 0.3 undecidable manual P 351 21.0678 125 -0.29 69
IV.ECBD.HHN. 2021-05-06T13:57:36.46 0.1 undecidable manual P 327 11.3775 145 -0.08 98
IV.ESAL.HHZ. 2021-05-06T13:57:36.17 0.1 undecidable manual P 344 6.993 157 -0.05 100
IV.EMPL.HHZ. 2021-05-06T13:57:36.99 0.3 undecidable manual P 264 16.4724 133 -0.08 73
IV.EMFS.HHE. 2021-05-06T13:57:36.55 0.1 undecidable manual P 281 14.2746 138 -0.27 94
IV.ESPC.HHN. 2021-05-06T13:57:36.43 0.3 undecidable manual P 269 11.3775 145 -0.12 73
IV.EVRN.HHZ. 2021-05-06T13:57:36.22 0.3 undecidable manual P 253 1.998 173 0.2 72
IV.EMCN.HHN. 2021-05-06T13:57:36.96 0.1 undecidable manual P 315 15.2736 135 0.03 98
IV.ESLN.HHZ. 2021-05-06T13:57:36.85 0.1 undecidable manual P 270 16.0728 134 -0.17 96
IV.EMFO.HHE. 2021-05-06T13:57:36.09 0.1 undecidable manual P 308 7.4814 156 -0.15 98
IV.EFIU.HHZ. 2021-05-06T13:57:36.42 0.1 positive manual P 24 11.5773 144 -0.14 98
IV.EPOZ.HHZ. 2021-05-06T13:57:36.30 0.6 undecidable manual P 132 3.6963 167 0.24 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNN. ML:2.5 0.0027199999999999998 0.18 AML other m 2021-05-06T13:57:39.24
IV.EVRN.HHN. ML:2.4 0.00214 0.16 AML other m 2021-05-06T13:57:39.24
IV.EVRN.HHE. ML:2.4 0.002485 0.24 AML other m 2021-05-06T13:57:39.36
IV.EVRN.HNE. ML:2.4 0.001975 0.8 AML other m 2021-05-06T13:57:39.37
IV.ESAL.HHN. ML:2.0 0.0008535 0.38 AML other m 2021-05-06T13:57:39.29
IV.ESAL.HHE. ML:2.2 0.0012565 0.4 AML other m 2021-05-06T13:57:39.56
IV.EFIU.HHN. ML:1.8 0.000472 1.1 AML other m 2021-05-06T13:57:40.86
IV.EFIU.HHE. ML:1.8 0.00042249999999999997 0.58 AML other m 2021-05-06T13:57:40.71
IV.EPOZ.HHN. ML:1.7 0.00041749999999999996 0.8 AML other m 2021-05-06T13:57:41.53
IV.EMPL.HHE. ML:2.0 0.0006559999999999999 0.52 AML other m 2021-05-06T13:57:41.95
IV.EPOZ.HHE. ML:1.7 0.000428 0.34 AML other m 2021-05-06T13:57:42.02
IV.EMPL.HHN. ML:2.2 0.000994 0.18 AML other m 2021-05-06T13:57:42.23
IV.EPIT.HHN. ML:2.3 0.0012850000000000001 0.36 AML other m 2021-05-06T13:57:42.67
IV.EMSG.HHN. ML:1.8 0.00032799999999999995 0.32 AML other m 2021-05-06T13:57:43.33
IV.EPIT.HHE. ML:2.1 0.000786 0.22 AML other m 2021-05-06T13:57:44.32
IV.EMSG.HHE. ML:1.8 0.000295 1.4 AML other m 2021-05-06T13:57:46.03
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