Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 22-10-2020 and time 18:40:06 (Italy) in region 10 km NE Biancavilla (CT)

A magnitude ML 2.0 earthquake occured in region: 10 km NE Biancavilla (CT), on

  • 22-10-2020 16:40:06 (UTC)
  • 22-10-2020 18:40:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7240, 14.9220 at 30 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
Biancavilla CT 10 24007 24007
Adrano CT 10 36122 60129
Bronte CT 11 19172 79301
Ragalna CT 11 3924 83225
Santa Maria di Licodia CT 12 7641 90866
Maletto CT 13 3920 94786
Nicolosi CT 15 7463 102249
Belpasso CT 16 28108 130357
Zafferana Etnea CT 16 9517 139874
Paternò CT 16 48228 188102
Pedara CT 17 14102 202204
Milo CT 17 1087 203291
Randazzo CT 17 10900 214191
Trecastagni CT 18 10910 225101
Maniace CT 18 3765 228866
Camporotondo Etneo CT 19 5023 233889
San Pietro Clarenza CT 19 7743 241632
Centuripe EN 20 5470 247102
Santa Venerina CT 20 8592 255694
Sant'Alfio CT 20 1582 257276
Viagrande CT 20 8563 265839

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Acireale (52622 inhabitants)
29 Km NW of Catania (314555 inhabitants)
76 Km SW of Messina (238439 inhabitants)
77 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km E of Caltanissetta (63360 inhabitants)
81 Km NW of Siracusa (122291 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
93 Km NE of Vittoria (63339 inhabitants)
94 Km NE of Gela (75827 inhabitants)
97 Km N of Modica (54633 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 2.0 2020-10-22
16:40:06		 37.7245 14.9218 30 2021-02-26
14:56:20		 Bollettino Sismico Italiano INGV 87408291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 16:40:06 ± 0.23
Latitude 37.7245 ± 0.0081
Longitude 14.9218 ± 0.0159
Depth (km) 30 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87408291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1224
Semi-minor axis of confidence ellipse (meter) 834
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.78061
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 87408291
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-23 12:02:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2020-10-22T16:40:32.62 0.6 undecidable manual S 168 86.6466 105 0.23 43
IV.SSY.HHN. 2020-10-22T16:40:27.07 0.6 undecidable manual S 168 64.2912 110 0.39 44
IV.HAVL.HHZ. 2020-10-22T16:40:21.19 0.3 undecidable manual P 168 86.6466 105 -0.1 68
IV.HLNI.HHZ. 2020-10-22T16:40:20.87 0.6 undecidable manual S 186 41.9247 121 -0.4 47
IV.SSY.HHN. 2020-10-22T16:40:18.11 0.3 undecidable manual P 168 64.2912 110 0.11 70
IV.ECTS.HHZ. 2020-10-22T16:40:17.72 0.6 undecidable manual S 45 24.6531 137 0.05 51
IV.EPZF.HHZ. 2020-10-22T16:40:16.29 0.6 undecidable manual S 333 12.3765 156 0.46 48
IV.EPIT.HHN. 2020-10-22T16:40:16.26 0.6 undecidable manual S 51 15.2736 151 0.09 51
IV.ECHR.HHE. 2020-10-22T16:40:16.20 0.6 undecidable manual S 190 4.2957 171 0.99 38
IV.ESML.HHE. 2020-10-22T16:40:15.65 0.6 undecidable manual S 198 12.3765 156 -0.18 51
IV.MSFR.HHZ. 2020-10-22T16:40:15.92 0.3 undecidable manual P 320 44.9217 119 0.65 64
IV.EMSG.HHZ. 2020-10-22T16:40:15.04 0.6 undecidable manual S 13 10.9779 158 -0.64 45
IV.HLNI.HHZ. 2020-10-22T16:40:14.55 0.1 undecidable manual P 186 41.9247 121 -0.33 94
IV.GALF.HHZ. 2020-10-22T16:40:13.63 0.1 undecidable manual P 267 31.2465 130 0.1 100
IV.ECTS.HHZ. 2020-10-22T16:40:12.82 0.3 undecidable manual P 45 24.6531 137 0.03 77
IV.EPOZ.HHN. 2020-10-22T16:40:12.89 0.3 undecidable manual P 104 24.1536 138 0.16 75
IV.ECBD.HHN. 2020-10-22T16:40:12.03 0.3 undecidable manual P 67 15.6732 150 0.06 78
IV.EPIT.HHN. 2020-10-22T16:40:12.07 0.3 undecidable manual P 51 15.2736 151 0.14 77
IV.EMSG.HHZ. 2020-10-22T16:40:11.39 0.1 positive manual P 13 10.9779 158 -0.26 100
IV.ESLN.HHZ. 2020-10-22T16:40:11.05 1.0 undecidable manual P 127 5.7942 168 -0.37 25
IV.ESML.HHE. 2020-10-22T16:40:11.85 0.3 undecidable manual P 198 12.3765 156 0.12 77
IV.EPZF.HHZ. 2020-10-22T16:40:11.35 0.1 positive manual P 333 12.3765 156 -0.38 97
IV.ECHR.HHE. 2020-10-22T16:40:10.97 0.3 undecidable manual P 190 4.2957 171 -0.41 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:2.2 0.0007645 0.56 AML other m 2020-10-22T16:40:16.74
IV.EPZF.HHN. ML:2.1 0.0005949999999999999 1.16 AML other m 2020-10-22T16:40:16.64
IV.ESML.HHE. ML:1.9 0.0003505 0.72 AML other m 2020-10-22T16:40:18.29
IV.ECTS.HHE. ML:1.9 0.000275 0.6 AML other m 2020-10-22T16:40:18.40
IV.ECTS.HHN. ML:1.8 0.0002445 0.38 AML other m 2020-10-22T16:40:18.50
IV.GALF.HHN. ML:2.0 0.0003015 0.28 AML other m 2020-10-22T16:40:21.42
IV.GALF.HHE. ML:2.0 0.000357 0.64 AML other m 2020-10-22T16:40:21.74
IV.HLNI.HHE. ML:1.4 0.00006829999999999999 0.86 AML other m 2020-10-22T16:40:21.82
IV.HLNI.HHN. ML:1.5 0.0000731 0.44 AML other m 2020-10-22T16:40:21.64
IV.ESML.HHN. ML:1.9 0.0003515 0.7 AML other m 2020-10-22T16:40:22.67
IV.SSY.HHE. ML:2.2 0.00028799999999999995 0.62 AML other m 2020-10-22T16:40:27.20
IV.SSY.HHN. ML:2.6 0.000643 0.42 AML other m 2020-10-22T16:40:31.22
IV.HAVL.HHE. ML:2.1 0.00013450000000000002 0.14 AML other m 2020-10-22T16:40:33.64
IV.HAVL.HHN. ML:2.3 0.00022649999999999998 0.8 AML other m 2020-10-22T16:40:33.69
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