Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.4 on date 08-02-2021 and time 02:21:40 (UTC) in region 3 km E Biancavilla (CT)

A magnitude ML 2.4 earthquake occured in region: 3 km E Biancavilla (CT), on

  • 08-02-2021 02:21:40 (UTC)
  • 08-02-2021 03:21:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6500, 14.8970 at 0 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 3 24007 24007
Santa Maria di Licodia CT 4 7641 31648
Ragalna CT 4 3924 35572
Adrano CT 6 36122 71694
Paternò CT 8 48228 119922
Belpasso CT 10 28108 148030
Nicolosi CT 12 7463 155493
Camporotondo Etneo CT 13 5023 160516
Centuripe EN 14 5470 165986
San Pietro Clarenza CT 14 7743 173729
Pedara CT 15 14102 187831
Mascalucia CT 16 31958 219789
Bronte CT 16 19172 238961
Trecastagni CT 17 10910 249871
Motta Sant'Anastasia CT 17 12116 261987
Misterbianco CT 17 49410 311397
Tremestieri Etneo CT 18 20589 331986
Gravina di Catania CT 18 25838 357824
Viagrande CT 18 8563 366387
Zafferana Etnea CT 19 9517 375904
Sant'Agata li Battiati CT 19 9479 385383
San Giovanni la Punta CT 19 23060 408443
Aci Bonaccorsi CT 20 3524 411967

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Catania (314555 inhabitants)
24 Km W of Acireale (52622 inhabitants)
74 Km NW of Siracusa (122291 inhabitants)
76 Km E of Caltanissetta (63360 inhabitants)
82 Km N of Ragusa (73313 inhabitants)
83 Km SW of Reggio di Calabria (183035 inhabitants)
84 Km SW of Messina (238439 inhabitants)
84 Km NE of Vittoria (63339 inhabitants)
86 Km NE of Gela (75827 inhabitants)
89 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 2.4 2021-02-08
02:21:40		 37.6503 14.897 0 2021-07-12
16:54:58		 Bollettino Sismico Italiano INGV 86962821
Reviewed
Rev200 		ML 2.2 2021-02-08
02:21:40		 37.69 14.93 0 2021-07-12
16:13:28		 Sala Operativa INGV_OE (Catania) 86922391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-08 02:21:40 ± 0.15
Latitude 37.6503 ± 0.0063
Longitude 14.8970 ± 0.0080
Depth (km) 0 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86962821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 720
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
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) 0.46
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.39300
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:2.4

Field Value
Value 2.4
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 86962821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-09 08:41:07

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 86922391
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-02-08 02:30:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2021-02-08T02:21:55.85 1.0 undecidable manual S 357 43.623 90 -0.15 23
IV.ECTS.HHZ. 2021-02-08T02:21:52.57 0.3 undecidable manual S 37 32.3454 90 0.48 66
IV.EFIU.HHE. 2021-02-08T02:21:51.92 1.0 undecidable manual S 61 31.5462 90 0.11 24
IV.EPOZ.HHZ. 2021-02-08T02:21:50.47 1.0 undecidable manual S 85 25.752 90 0.68 21
IV.HCRL.HHN. 2021-02-08T02:21:49.22 0.1 undecidable manual P 164 42.4242 90 -0.15 93
IV.MUCR.HHZ. 2021-02-08T02:21:49.45 0.1 undecidable manual P 357 43.623 90 -0.16 93
IV.EPIT.HHN. 2021-02-08T02:21:48.61 0.6 undecidable manual S 38 22.6551 90 -0.14 48
IV.EVRN.HHZ. 2021-02-08T02:21:48.10 0.6 undecidable manual S 78 21.3675 90 -0.19 48
IV.HLNI.HHE. 2021-02-08T02:21:48.08 0.1 undecidable manual P 184 33.5442 90 0.49 88
IV.EPZF.HHZ. 2021-02-08T02:21:48.38 1.0 undecidable manual S 350 19.5693 90 0.71 21
IV.EMSG.HHZ. 2021-02-08T02:21:48.12 0.6 undecidable manual S 14 19.4694 91 0.49 45
IV.EFIU.HHE. 2021-02-08T02:21:47.01 0.3 undecidable manual P 61 31.5462 90 -0.18 71
IV.GALF.HHZ. 2021-02-08T02:21:47.11 0.1 undecidable manual P 283 29.748 90 0.27 92
IV.ECTS.HHZ. 2021-02-08T02:21:46.80 0.1 undecidable manual P 37 32.3454 90 -0.55 86
IV.ESCV.HHZ. 2021-02-08T02:21:46.27 0.3 undecidable manual S 326 12.876 91 0.92 57
IV.ESVO.HHE. 2021-02-08T02:21:46.50 0.6 undecidable manual S 18 14.2746 91 0.67 42
IV.EPOZ.HHZ. 2021-02-08T02:21:46.22 0.1 undecidable manual P 85 25.752 90 0.2 95
IV.EPZF.HHZ. 2021-02-08T02:21:45.20 0.1 undecidable manual P 350 19.5693 90 0.41 92
IV.EMFS.HHE. 2021-02-08T02:21:45.38 0.3 undecidable manual S 49 11.6772 91 0.44 69
IV.ECPN.HHZ. 2021-02-08T02:21:45.69 0.6 undecidable manual S 37 12.9759 91 0.31 47
IV.ECBD.HHN. 2021-02-08T02:21:45.07 0.1 undecidable manual P 49 21.9669 90 -0.21 95
IV.EPIT.HHN. 2021-02-08T02:21:45.32 0.6 undecidable manual P 38 22.6551 90 -0.1 49
IV.ENIC.HHZ. 2021-02-08T02:21:45.48 0.3 undecidable manual S 101 11.1777 91 0.74 62
IV.ESPC.HHN. 2021-02-08T02:21:45.81 0.3 undecidable manual S 68 12.3765 91 0.65 64
IV.EMNR.HHZ. 2021-02-08T02:21:45.79 0.3 undecidable manual P 31 21.6672 90 0.58 65
IV.EMPL.HHZ. 2021-02-08T02:21:44.01 0.3 undecidable manual S 64 7.1928 91 0.65 65
IV.EMFO.HHE. 2021-02-08T02:21:44.83 0.3 undecidable manual P 61 19.4694 91 0.07 74
IV.EMSG.HHZ. 2021-02-08T02:21:44.78 0.1 undecidable manual P 14 19.4694 91 0.01 99
IV.ECZM.HHN. 2021-02-08T02:21:44.79 0.6 undecidable manual S 4 8.9799 91 0.8 41
IV.EVRN.HHZ. 2021-02-08T02:21:44.42 0.1 undecidable manual P 78 21.3675 90 -0.74 81
IV.ESLN.HHZ. 2021-02-08T02:21:44.31 0.3 undecidable manual S 55 8.2806 91 0.56 67
IV.ESCV.HHZ. 2021-02-08T02:21:43.62 0.1 undecidable manual P 326 12.876 91 0.16 97
IV.ESVO.HHE. 2021-02-08T02:21:43.71 0.1 undecidable manual P 18 14.2746 91 -0.03 100
IV.ENIC.HHZ. 2021-02-08T02:21:43.47 0.1 undecidable manual P 101 11.1777 91 0.37 94
IV.EMFS.HHE. 2021-02-08T02:21:42.81 0.1 undecidable manual P 49 11.6772 91 -0.41 93
IV.ECPN.HHZ. 2021-02-08T02:21:42.53 0.3 undecidable manual P 37 12.9759 91 -0.94 57
IV.EMPL.HHZ. 2021-02-08T02:21:42.11 0.1 undecidable manual P 64 7.1928 91 -0.2 98
IV.ESPC.HHN. 2021-02-08T02:21:42.88 0.1 undecidable manual P 68 12.3765 91 -0.47 91
IV.ESLN.HHZ. 2021-02-08T02:21:41.55 0.1 undecidable manual P 55 8.2806 91 -0.98 75
IV.ECHR.HHE. 2021-02-08T02:21:41.23 0.3 undecidable manual S 19 4.1958 92 -1.11 53
IV.ECZM.HHN. 2021-02-08T02:21:41.90 0.1 undecidable manual P 4 8.9799 91 -0.77 82
IV.ECHR.HHE. 2021-02-08T02:21:40.23 0.1 undecidable manual P 19 4.1958 92 -1.49 58
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ENIC.HNN. ML:2.7 0.008535000000000001 1.34 AML other m 2021-02-08T02:21:49.99
IV.ENIC.HHE. ML:2.5 0.00543 0.54 AML other m 2021-02-08T02:21:49.44
IV.ESCV.HHE. ML:2.2 0.00234 0.56 AML other m 2021-02-08T02:21:49.29
IV.ENIC.HHN. ML:2.7 0.00802 0.58 AML other m 2021-02-08T02:21:50.44
IV.ESCV.HHN. ML:2.3 0.002725 0.84 AML other m 2021-02-08T02:21:50.26
IV.ENIC.HNE. ML:2.6 0.007395 0.38 AML other m 2021-02-08T02:21:50.72
IV.EMSG.HHE. ML:2.6 0.0031349999999999998 1 AML other m 2021-02-08T02:21:51.54
IV.EMSG.HHN. ML:2.7 0.004199999999999999 0.42 AML other m 2021-02-08T02:21:52.59
IV.EVRN.HHN. ML:2.3 0.001695 0.58 AML other m 2021-02-08T02:21:53.66
IV.EVRN.HHE. ML:2.3 0.00165 0.58 AML other m 2021-02-08T02:21:57.79
IV.MUCR.HHE. ML:1.9 0.000282 1.3 AML other m 2021-02-08T02:22:04.85
IV.MUCR.HHN. ML:1.9 0.000263 1.14 AML other m 2021-02-08T02:22:07.16
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
Waveforms Seismic signals in miniseed + resp format Download