Earthquake with magnitude of ML 1.6 on date 25-10-2020 and time 00:37:50 (Italy) in region 1 km SW Giarre (CT)

A magnitude ML 1.6 earthquake occured in region: 1 km SW Giarre (CT), on

  • 24-10-2020 22:37:50 (UTC)
  • 25-10-2020 00:37:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7210, 15.1790 at 18 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
Giarre CT 1 27659 27659
Riposto CT 3 14838 42497
Sant'Alfio CT 4 1582 44079
Mascali CT 4 14282 58361
Santa Venerina CT 5 8592 66953
Milo CT 6 1087 68040
Zafferana Etnea CT 7 9517 77557
Fiumefreddo di Sicilia CT 9 9623 87180
Piedimonte Etneo CT 10 3963 91143
Acireale CT 12 52622 143765
Calatabiano CT 12 5308 149073
Aci Catena CT 13 29851 178924
Aci Sant'Antonio CT 14 17984 196908
Linguaglossa CT 14 5403 202311
Viagrande CT 14 8563 210874
Trecastagni CT 14 10910 221784
Aci Bonaccorsi CT 15 3524 225308
Pedara CT 16 14102 239410
Giardini-Naxos ME 16 9415 248825
Gaggi ME 16 3184 252009
Valverde CT 16 7840 259849
Taormina ME 17 10960 270809
San Giovanni la Punta CT 18 23060 293869
Castelmola ME 18 1088 294957
Nicolosi CT 18 7463 302420
San Gregorio di Catania CT 18 11966 314386
Aci Castello CT 19 18723 333109
Tremestieri Etneo CT 19 20589 353698
Castiglione di Sicilia CT 19 3215 356913
Graniti ME 20 1492 358405
Motta Camastra ME 20 845 359250
Mascalucia CT 20 31958 391208
Sant'Agata li Battiati CT 20 9479 400687

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km N of Acireale (52622 inhabitants)
25 Km NE of Catania (314555 inhabitants)
60 Km SW of Reggio di Calabria (183035 inhabitants)
62 Km SW of Messina (238439 inhabitants)
74 Km N of Siracusa (122291 inhabitants)
97 Km NE of Ragusa (73313 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 1.6 2020-10-24
22:37:50
37.721 15.1793 18 2021-02-26
14:56:20
Bollettino Sismico Italiano INGV 87476661
Reviewed
Rev100
ML 2.0 2020-10-24
22:37:48
37.7993 15.4368 20 2020-10-24
22:52:56
Sala Sismica INGV-Roma 84102371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-24 22:37:50 ± 0.32
Latitude 37.7210 ± 0.0117
Longitude 15.1793 ± 0.0148
Depth (km) 18 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87476661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1267
Semi-minor axis of confidence ellipse (meter) 986
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 288
Circular confidence region, given by single value of horizontal uncertainty (meter) 1270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 207
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
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) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.44696
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 87476661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-25 12:05:24

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 84102371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-24 22:52:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AIO.HHE. 2020-10-24T22:38:01.13 0.6 undecidable manual S 10 28.1496 112 0.2 48
IV.MPNC.HHE. 2020-10-24T22:37:59.21 0.3 undecidable manual P 18 49.617 101 -0.53 64
IV.ECTS.HHE. 2020-10-24T22:37:58.57 0.6 undecidable manual S 344 18.5703 126 -0.12 49
IV.EPIT.HHE. 2020-10-24T22:37:58.00 0.6 undecidable manual S 313 14.6742 134 0.1 50
IV.AIO.HHE. 2020-10-24T22:37:57.24 0.3 undecidable manual P 10 28.1496 112 0.68 63
IV.EFIU.HHE. 2020-10-24T22:37:56.71 0.6 undecidable manual S 20 8.0808 152 -0.11 50
IV.ECBD.HHE. 2020-10-24T22:37:56.96 0.6 undecidable manual S 309 10.4784 145 -0.19 49
IV.EVRN.HHZ. 2020-10-24T22:37:56.42 0.6 undecidable manual S 227 5.1948 161 -0.09 51
IV.ECTS.HHE. 2020-10-24T22:37:55.12 0.3 undecidable manual P 344 18.5703 126 -0.15 74
IV.EMCN.HHN. 2020-10-24T22:37:55.10 0.3 undecidable manual P 301 14.9739 133 0.27 72
IV.EPIT.HHE. 2020-10-24T22:37:55.02 0.3 undecidable manual P 313 14.6742 134 0.22 73
IV.EFIU.HHE. 2020-10-24T22:37:54.03 0.1 undecidable manual P 20 8.0808 152 -0.15 100
IV.ECBD.HHE. 2020-10-24T22:37:54.17 0.1 undecidable manual P 309 10.4784 145 -0.2 98
IV.EVRN.HHZ. 2020-10-24T22:37:54.13 0.3 undecidable manual P 227 5.1948 161 0.13 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNN. ML:1.6 0.00035738275 0.2944 AML other m 2020-10-24T22:37:56.68
IV.EVRN.HHN. ML:1.6 0.0003638517 0.2816 AML other m 2020-10-24T22:37:56.69
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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