Earthquake with magnitude of ML 1.7 on date 10-10-2021 and time 06:40:00 (Italy) in region Costa Catanese (Catania)

A magnitude ML 1.7 earthquake occured in region: Costa Catanese (Catania), on

  • 10-10-2021 04:40:00 (UTC)
  • 10-10-2021 06:40:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.6540, 15.2320 at 22 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Acireale CT 7 52622 52622
Santa Venerina CT 9 8592 61214
Riposto CT 9 14838 76052
Giarre CT 10 27659 103711
Aci Catena CT 10 29851 133562
Aci Sant'Antonio CT 11 17984 151546
Mascali CT 12 14282 165828
Zafferana Etnea CT 12 9517 175345
Aci Bonaccorsi CT 12 3524 178869
Valverde CT 13 7840 186709
Sant'Alfio CT 13 1582 188291
Viagrande CT 13 8563 196854
Milo CT 13 1087 197941
Aci Castello CT 13 18723 216664
Trecastagni CT 14 10910 227574
San Gregorio di Catania CT 15 11966 239540
San Giovanni la Punta CT 15 23060 262600
Pedara CT 16 14102 276702
Fiumefreddo di Sicilia CT 16 9623 286325
Tremestieri Etneo CT 16 20589 306914
Sant'Agata li Battiati CT 17 9479 316393
Piedimonte Etneo CT 18 3963 320356
Mascalucia CT 18 31958 352314
Gravina di Catania CT 18 25838 378152
Nicolosi CT 19 7463 385615
Calatabiano CT 19 5308 390923

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km NE of Acireale (52622 inhabitants)
21 Km NE of Catania (314555 inhabitants)
62 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km N of Siracusa (122291 inhabitants)
67 Km SW of Messina (238439 inhabitants)
92 Km NE of Ragusa (73313 inhabitants)
98 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 1.7 2021-10-10
04:40:00
37.6538 15.232 22 2022-03-30
13:04:10
Bollettino Sismico Italiano INGV 96414701
Reviewed
Rev200
ML 1.4 2021-10-10
04:40:00
37.655 15.146 23 2021-10-12
09:48:37
Sala Operativa INGV_OE (Catania) 96398571
Reviewed
Rev100
ML 1.8 2021-10-10
04:40:01
37.6618 15.2233 19 2021-10-10
05:00:45
Sala Sismica INGV-Roma 96398601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-10 04:40:00 ± 0.09
Latitude 37.6538 ± 0.0027
Longitude 15.2320 ± 0.0068
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 96414701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 502
Semi-minor axis of confidence ellipse (meter) 381
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
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 43
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.81389
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 96414701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-10 20:36:06

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 96398601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-10 05:00:45

ML:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 96398571
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-10-10 04:59:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RAFF.HHE. 2021-10-10T04:40:27.90 1.0 undecidable manual S 238 90.3429 98 0.2 21
IV.HMDC.HHZ. 2021-10-10T04:40:26.80 0.6 undecidable manual S 207 86.6466 98 0.06 44
IV.HAVL.HHZ. 2021-10-10T04:40:24.65 0.6 undecidable manual S 187 77.6667 99 0.3 42
IV.MCPD.HHE. 2021-10-10T04:40:22.00 0.6 undecidable manual S 320 67.7766 101 0.23 44
IV.HVZN.HHE. 2021-10-10T04:40:22.09 0.6 undecidable manual S 221 69.6747 100 -0.17 44
IV.HSRS.HNN. 2021-10-10T04:40:20.53 0.3 undecidable manual S 181 62.2932 102 0.22 67
IV.SSY.HHZ. 2021-10-10T04:40:19.24 0.6 undecidable manual S 194 56.7987 103 0.35 44
IV.MUCR.HHE. 2021-10-10T04:40:18.18 0.6 undecidable manual S 324 53.3022 104 0.18 45
IV.MPNC.HHE. 2021-10-10T04:40:18.82 0.6 undecidable manual S 11 55.6998 103 0.22 45
IV.RAFF.HHE. 2021-10-10T04:40:16.36 0.1 undecidable manual P 238 90.3429 98 -0.04 88
IV.NOV.HHE. 2021-10-10T04:40:15.41 0.3 undecidable manual S 349 42.3243 109 0.24 69
IV.HAGA.HHZ. 2021-10-10T04:40:15.04 0.3 undecidable manual S 189 41.5251 109 0.08 71
IV.HMDC.HHZ. 2021-10-10T04:40:15.76 0.1 undecidable manual P 207 86.6466 98 -0.08 88
IV.EPZF.HHE. 2021-10-10T04:40:14.63 0.6 undecidable manual S 300 37.9287 111 0.56 43
IV.HAVL.HHZ. 2021-10-10T04:40:14.31 0.1 undecidable manual P 187 77.6667 99 -0.15 88
IV.MSFR.HHE. 2021-10-10T04:40:13.48 0.1 undecidable manual P 307 70.1742 100 0.15 88
IV.HVZN.HHE. 2021-10-10T04:40:13.45 0.1 undecidable manual P 221 69.6747 100 0.19 88
IV.HSRS.HNN. 2021-10-10T04:40:12.14 0.3 undecidable manual P 181 62.2932 102 0.01 69
IV.MCPD.HHE. 2021-10-10T04:40:12.80 0.1 undecidable manual P 320 67.7766 101 -0.17 89
IV.SSY.HHZ. 2021-10-10T04:40:11.05 0.1 undecidable manual P 194 56.7987 103 -0.26 89
IV.ECTS.HHZ. 2021-10-10T04:40:11.23 0.3 undecidable manual S 339 27.1506 121 -0.24 70
IV.MPNC.HHE. 2021-10-10T04:40:11.33 0.1 undecidable manual P 11 55.6998 103 0.19 90
IV.EMNR.HHE. 2021-10-10T04:40:11.60 1.0 undecidable manual S 315 25.5522 123 0.48 22
IV.MUCR.HHE. 2021-10-10T04:40:10.62 0.1 undecidable manual P 324 53.3022 104 -0.18 91
IV.EPIT.HHZ. 2021-10-10T04:40:10.68 1.0 undecidable manual S 319 23.2545 126 0.07 25
IV.EFIU.HHZ. 2021-10-10T04:40:09.39 0.3 undecidable manual S 353 15.1737 140 0.37 71
IV.ESAL.HHZ. 2021-10-10T04:40:09.14 0.3 undecidable manual S 323 14.0748 142 0.3 72
IV.ECBD.HHE. 2021-10-10T04:40:09.44 0.3 undecidable manual S 318 18.9699 132 -0.28 70
IV.EPZF.HHE. 2021-10-10T04:40:08.86 0.1 undecidable manual P 300 37.9287 111 0.33 90
IV.HAGA.HHZ. 2021-10-10T04:40:08.92 0.1 undecidable manual P 189 41.5251 109 -0.12 94
IV.NOV.HHE. 2021-10-10T04:40:08.93 0.1 undecidable manual P 349 42.3243 109 -0.23 92
IV.EVRN.HHZ. 2021-10-10T04:40:08.52 0.3 undecidable manual S 295 9.2796 153 0.37 72
IV.ESPC.HHE. 2021-10-10T04:40:08.90 0.6 undecidable manual S 283 18.4704 133 -0.72 41
IV.EPOZ.HHZ. 2021-10-10T04:40:07.12 0.6 undecidable manual S 298 4.2957 167 -0.57 44
IV.EPIT.HHZ. 2021-10-10T04:40:06.59 0.1 undecidable manual P 319 23.2545 126 0.06 98
IV.ECTS.HHZ. 2021-10-10T04:40:06.70 0.1 undecidable manual P 339 27.1506 121 -0.33 92
IV.EMNR.HHE. 2021-10-10T04:40:06.99 0.1 undecidable manual P 315 25.5522 123 0.17 96
IV.EVRN.HHZ. 2021-10-10T04:40:05.23 0.1 undecidable manual P 295 9.2796 153 0.12 100
IV.ECBD.HHE. 2021-10-10T04:40:05.99 0.1 undecidable manual P 318 18.9699 132 -0.02 100
IV.ESPC.HHE. 2021-10-10T04:40:05.38 0.1 undecidable manual P 283 18.4704 133 -0.58 87
IV.EFIU.HHZ. 2021-10-10T04:40:05.41 0.1 positive manual P 353 15.1737 140 -0.2 96
IV.ESAL.HHZ. 2021-10-10T04:40:05.60 0.1 undecidable manual P 323 14.0748 142 0.09 100
IV.EPOZ.HHZ. 2021-10-10T04:40:04.67 0.1 undecidable manual P 298 4.2957 167 -0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHE. ML:1.7 0.00036150000000000006 0.94 AML other m 2021-10-10T04:40:08.20
IV.EVRN.HNE. ML:1.9 0.0005415 1.32 AML other m 2021-10-10T04:40:08.99
IV.EVRN.HHN. ML:1.8 0.000462 0.54 AML other m 2021-10-10T04:40:09.00
IV.EVRN.HNN. ML:1.8 0.000437 0.56 AML other m 2021-10-10T04:40:09.48
IV.EPOZ.HHN. ML:1.5 0.00026450000000000003 0.14 AML other m 2021-10-10T04:40:09.33
IV.ESAL.HHE. ML:1.9 0.00047599999999999997 0.76 AML other m 2021-10-10T04:40:09.54
IV.EVRN.HHE. ML:1.8 0.0004795 0.88 AML other m 2021-10-10T04:40:10.99
IV.ECTS.HHE. ML:1.7 0.00021899999999999998 0.46 AML other m 2021-10-10T04:40:11.73
IV.ESAL.HHN. ML:1.6 0.00026049999999999994 1.02 AML other m 2021-10-10T04:40:11.53
IV.ECTS.HHN. ML:1.2 0.0000743 1 AML other m 2021-10-10T04:40:12.03
IV.SSY.HHE. ML:1.9 0.00016149999999999997 0.94 AML other m 2021-10-10T04:40:21.28
IV.SSY.HHN. ML:2.2 0.00034649999999999997 0.68 AML other m 2021-10-10T04:40:22.48
IV.HAVL.HHE. ML:2.1 0.000161 1.74 AML other m 2021-10-10T04:40:25.09
IV.HAVL.HHN. ML:2.1 0.000192 1.74 AML other m 2021-10-10T04:40:25.09
IV.EPIT.HHE. ML:1.6 0.0002041927 0.2592 AML other m 2021-10-10T04:40:12.27
IV.EPIT.HHN. ML:1.7 0.00024363979999999998 0.2784 AML other m 2021-10-10T04:40:17.56
IV.HAGA.HHN. ML:1.4 0.00006614862 0.08 AML other m 2021-10-10T04:40:16.05
IV.HAGA.HHE. ML:1.5 0.00010074009 0.1024 AML other m 2021-10-10T04:40:15.68
IV.HMDC.HHN. ML:1.5 0.00004124442 0.1408 AML other m 2021-10-10T04:40:29.84
IV.HMDC.HHE. ML:1.5 0.000037037380000000004 0.16 AML other m 2021-10-10T04:40:28.41
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