Earthquake with magnitude of ML 1.5 on date 22-10-2020 and time 18:40:51 (Italy) in region 8 km NE Biancavilla (CT)

A magnitude ML 1.5 earthquake occured in region: 8 km NE Biancavilla (CT), on

  • 22-10-2020 16:40:51 (UTC)
  • 22-10-2020 18:40:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7060, 14.9030 at 16 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
Biancavilla CT 8 24007 24007
Adrano CT 8 36122 60129
Ragalna CT 9 3924 64053
Santa Maria di Licodia CT 10 7641 71694
Bronte CT 11 19172 90866
PaternĂ² CT 14 48228 139094
Maletto CT 14 3920 143014
Belpasso CT 14 28108 171122
Nicolosi CT 15 7463 178585
Centuripe EN 17 5470 184055
Pedara CT 17 14102 198157
Zafferana Etnea CT 18 9517 207674
Camporotondo Etneo CT 18 5023 212697
San Pietro Clarenza CT 18 7743 220440
Trecastagni CT 18 10910 231350
Milo CT 19 1087 232437
Maniace CT 19 3765 236202
Randazzo CT 20 10900 247102
Mascalucia CT 20 31958 279060

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km W of Acireale (52622 inhabitants)
28 Km NW of Catania (314555 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
79 Km SW of Messina (238439 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km NW of Siracusa (122291 inhabitants)
88 Km N of Ragusa (73313 inhabitants)
90 Km NE of Vittoria (63339 inhabitants)
92 Km NE of Gela (75827 inhabitants)
95 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 1.5 2020-10-22
16:40:51
37.7062 14.9027 16 2021-02-26
14:56:19
Bollettino Sismico Italiano INGV 87150901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 16:40:51 ± 0.15
Latitude 37.7062 ± 0.0072
Longitude 14.9027 ± 0.0125
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87150901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1140
Semi-minor axis of confidence ellipse (meter) 296
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) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
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) 0.38
Epicentral distance of station closest to the epicenter (degree) 0.12051
Epicentral distance of station farthest from the epicenter (degree) 0.46585
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 87150901
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-23 11:56:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2020-10-22T16:41:07.87 0.3 undecidable manual S 155 51.7038 97 -0.08 69
IV.MSFR.HHZ. 2020-10-22T16:41:07.34 0.6 undecidable manual S 323 45.4212 99 1.06 33
IV.AIO.HHE. 2020-10-22T16:41:05.45 0.3 undecidable manual S 44 41.2254 100 0.27 69
IV.HLNI.HHE. 2020-10-22T16:41:04.85 0.3 undecidable manual S 184 39.7269 100 0.06 71
IV.HAGA.HHZ. 2020-10-22T16:41:01.98 0.3 undecidable manual P 155 51.7038 97 0.94 53
IV.MSFR.HHZ. 2020-10-22T16:41:00.07 0.1 undecidable manual P 323 45.4212 99 -0.01 95
IV.AIO.HHE. 2020-10-22T16:40:59.05 0.1 undecidable manual P 44 41.2254 100 -0.39 88
IV.EPZF.HHZ. 2020-10-22T16:40:58.21 0.3 undecidable manual S 343 13.6752 131 -0.14 74
IV.MUCR.HHE. 2020-10-22T16:40:58.25 0.3 undecidable manual P 356 37.4292 101 -0.62 62
IV.HLNI.HHE. 2020-10-22T16:40:58.76 0.3 undecidable manual P 184 39.7269 100 -0.45 66
IV.GALF.HHZ. 2020-10-22T16:40:57.69 0.1 undecidable manual P 271 29.5482 106 0.02 97
IV.EPIT.HHN. 2020-10-22T16:40:56.30 0.3 undecidable manual P 49 17.871 121 0.28 71
IV.EPZF.HHZ. 2020-10-22T16:40:55.42 0.1 undecidable manual P 343 13.6752 131 -0.08 100
IV.EMSG.HHZ. 2020-10-22T16:40:55.42 0.1 positive manual P 18 13.3755 132 -0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHN. ML:1.4 0.00021084065 0.96 AML other m 2020-10-22T16:40:59.19
IV.EPZF.HHE. ML:1.5 0.00023145025 0.5376 AML other m 2020-10-22T16:41:00.74
IV.EMSG.HHE. ML:1.9 0.0007239622500000001 0.3968 AML other m 2020-10-22T16:41:02.20
IV.GALF.HHN. ML:1.4 0.00011042478499999999 0.2816 AML other m 2020-10-22T16:41:05.44
IV.GALF.HHE. ML:1.5 0.0001365154 0.4608 AML other m 2020-10-22T16:41:05.72
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