Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 01-12-2020 and time 00:04:41 (Italy) in region 2 km SE Ragalna (CT)

A magnitude ML 2.1 earthquake occured in region: 2 km SE Ragalna (CT), on

  • 30-11-2020 23:04:41 (UTC)
  • 01-12-2020 00:04:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6130, 14.9480 at 8 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
Ragalna CT 2 3924 3924
Belpasso CT 4 28108 32032
Santa Maria di Licodia CT 5 7641 39673
Paternò CT 6 48228 87901
Nicolosi CT 7 7463 95364
Camporotondo Etneo CT 7 5023 100387
Biancavilla CT 8 24007 124394
San Pietro Clarenza CT 8 7743 132137
Pedara CT 10 14102 146239
Mascalucia CT 10 31958 178197
Motta Sant'Anastasia CT 11 12116 190313
Misterbianco CT 11 49410 239723
Adrano CT 12 36122 275845
Gravina di Catania CT 12 25838 301683
Trecastagni CT 12 10910 312593
Tremestieri Etneo CT 12 20589 333182
Sant'Agata li Battiati CT 13 9479 342661
Viagrande CT 13 8563 351224
San Giovanni la Punta CT 14 23060 374284
Aci Bonaccorsi CT 14 3524 377808
San Gregorio di Catania CT 15 11966 389774
Aci Sant'Antonio CT 16 17984 407758
Valverde CT 16 7840 415598
Zafferana Etnea CT 17 9517 425115
Aci Catena CT 17 29851 454966
Catania CT 17 314555 769521
Centuripe EN 18 5470 774991
Aci Castello CT 19 18723 793714
Santa Venerina CT 19 8592 802306
Acireale CT 19 52622 854928
Milo CT 19 1087 856015

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Catania (314555 inhabitants)
19 Km W of Acireale (52622 inhabitants)
69 Km NW of Siracusa (122291 inhabitants)
79 Km N of Ragusa (73313 inhabitants)
79 Km E of Caltanissetta (63360 inhabitants)
82 Km NE of Vittoria (63339 inhabitants)
83 Km SW of Reggio di Calabria (183035 inhabitants)
84 Km SW of Messina (238439 inhabitants)
85 Km N of Modica (54633 inhabitants)
87 Km NE of Gela (75827 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 2.1 2020-11-30
23:04:41		 37.6128 14.9478 8 2021-02-26
14:56:17		 Bollettino Sismico Italiano INGV 86657661
Reviewed
Rev200 		ML 1.8 2020-11-30
23:04:40		 37.617 14.927 8 2021-01-28
16:18:21		 Sala Operativa INGV_OE (Catania) 85117451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-30 23:04:41 ± 0.1
Latitude 37.6128 ± 0.0063
Longitude 14.9478 ± 0.0091
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86657661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 724
Semi-minor axis of confidence ellipse (meter) 630
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) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 80
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.60704
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 86657661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-28 16:18:06

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 85117451
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-11-30 23:24:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-11-30T23:04:58.98 0.6 undecidable manual S 168 51.7038 50 0.78 40
IV.HAGA.HHZ. 2020-11-30T23:04:55.58 0.6 undecidable manual S 153 40.626 50 0.32 48
IV.RAFF.HHE. 2020-11-30T23:04:53.24 0.3 undecidable manual P 230 67.377 50 -0.21 70
IV.HLNI.HHZ. 2020-11-30T23:04:52.55 0.6 undecidable manual S 193 30.0477 105 0.5 47
IV.SSY.HHZ. 2020-11-30T23:04:51.11 0.3 undecidable manual P 168 51.7038 50 0.07 74
IV.EPZF.HHZ. 2020-11-30T23:04:51.43 0.3 undecidable manual S 341 24.753 108 1.16 53
IV.CAGR.HHE. 2020-11-30T23:04:50.36 0.6 undecidable manual P 272 39.4272 50 1.22 33
IV.HVZN.HHE. 2020-11-30T23:04:50.45 1.0 undecidable manual P 203 52.4031 50 -0.69 21
IV.AIO.HHE. 2020-11-30T23:04:50.02 0.3 undecidable manual P 32 46.9197 50 -0.28 71
IV.MUCR.HHE. 2020-11-30T23:04:50.40 0.6 undecidable manual P 352 48.1185 50 -0.09 49
IV.GALF.HHZ. 2020-11-30T23:04:49.08 0.3 undecidable manual P 288 35.2425 103 0.6 67
IV.EVRN.HHZ. 2020-11-30T23:04:48.68 0.6 undecidable manual S 63 18.5703 113 0.43 48
IV.HAGA.HHZ. 2020-11-30T23:04:48.85 0.3 undecidable manual P 153 40.626 50 -0.49 69
IV.ECTS.HHZ. 2020-11-30T23:04:47.80 0.3 undecidable manual P 27 33.5442 103 -0.35 72
IV.EFIU.HHE. 2020-11-30T23:04:47.42 0.6 undecidable manual P 49 30.2475 105 -0.09 51
IV.HLNI.HHZ. 2020-11-30T23:04:46.99 0.1 undecidable manual P 193 30.0477 105 -0.49 93
IV.EPOZ.HHE. 2020-11-30T23:04:46.51 0.6 undecidable manual P 73 22.1556 110 0.55 46
IV.EPIT.HHN. 2020-11-30T23:04:46.29 0.3 undecidable manual P 23 23.9538 108 -0.03 78
IV.EMSG.HHE. 2020-11-30T23:04:46.20 0.6 undecidable manual P 0 23.0547 109 0.06 52
IV.EPZF.HHZ. 2020-11-30T23:04:46.57 0.3 undecidable manual P 341 24.753 108 0.11 77
IV.EVRN.HHZ. 2020-11-30T23:04:45.10 0.3 undecidable manual P 63 18.5703 113 -0.19 76
IV.ESLN.HHZ. 2020-11-30T23:04:45.74 0.6 undecidable manual S 15 9.2796 131 0.26 51
IV.ENIC.HHZ. 2020-11-30T23:04:45.58 0.6 undecidable manual S 72 6.7932 139 0.7 45
IV.ECBD.HHN. 2020-11-30T23:04:45.27 0.3 undecidable manual P 33 22.1556 110 -0.7 66
IV.ESML.HHZ. 2020-11-30T23:04:44.83 0.6 undecidable manual S 276 6.0939 143 0.11 53
IV.ECHR.HHE. 2020-11-30T23:04:44.94 0.6 undecidable manual S 339 8.6802 132 -0.41 49
IV.ENIC.HHZ. 2020-11-30T23:04:43.69 0.3 undecidable manual P 72 6.7932 139 0.34 75
IV.ECHR.HHE. 2020-11-30T23:04:43.11 0.1 undecidable manual P 339 8.6802 132 -0.5 97
IV.ESLN.HHZ. 2020-11-30T23:04:43.50 0.3 undecidable manual P 15 9.2796 131 -0.19 77
IV.ESML.HHZ. 2020-11-30T23:04:42.88 0.1 negative manual P 276 6.0939 143 -0.37 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ESML.HHE. ML:2.2 0.0028299460000000003 1.68 AML other m 2020-11-30T23:04:45.95
IV.ESML.HHN. ML:2.0 0.0021874194999999996 0.3072 AML other m 2020-11-30T23:04:45.49
IV.ESLN.HHN. ML:2.3 0.0030868725000000002 1.5008 AML other m 2020-11-30T23:04:45.11
IV.ESLN.HHE. ML:2.1 0.0019396659999999998 0.2432 AML other m 2020-11-30T23:04:48.19
IV.ENIC.HHN. ML:2.2 0.002605441 0.192 AML other m 2020-11-30T23:04:48.62
IV.ENIC.HNN. ML:2.2 0.0028262975 0.1664 AML other m 2020-11-30T23:04:48.63
IV.ENIC.HNE. ML:2.3 0.003386946 0.2432 AML other m 2020-11-30T23:04:49.18
IV.HAGA.HHN. ML:1.4 0.00007872954129999999 0.4192 AML other m 2020-11-30T23:04:49.27
IV.ENIC.HHE. ML:2.1 0.002515041 0.1792 AML other m 2020-11-30T23:04:49.54
IV.EVRN.HNN. ML:2.3 0.001498861 0.1792 AML other m 2020-11-30T23:04:50.76
IV.EVRN.HHE. ML:2.3 0.0016350605 0.384 AML other m 2020-11-30T23:04:51.60
IV.EVRN.HNE. ML:2.3 0.0015131329999999998 0.3712 AML other m 2020-11-30T23:04:51.61
IV.SSY.HHE. ML:2.2 0.0004045179 0.0544 AML other m 2020-11-30T23:04:51.66
IV.EVRN.HHN. ML:2.3 0.001531762 0.3712 AML other m 2020-11-30T23:04:51.70
IV.EPZF.HHN. ML:2.1 0.00081907775 1.6416 AML other m 2020-11-30T23:04:53.90
IV.HLNI.HHE. ML:1.3 0.00008987210500000001 0.2176 AML other m 2020-11-30T23:04:53.31
IV.HLNI.HHN. ML:1.4 0.000119783065 0.192 AML other m 2020-11-30T23:04:54.26
IV.EPZF.HHE. ML:2.1 0.0007751095 0.384 AML other m 2020-11-30T23:04:54.36
IV.HAGA.HHE. ML:1.4 0.000092468705 0.576 AML other m 2020-11-30T23:04:55.69
IV.AGST.EHE. ML:1.8 0.00019778285000000002 0.4992 AML other m 2020-11-30T23:04:58.53
IV.AGST.EHN. ML:2.0 0.00026344585 0.3712 AML other m 2020-11-30T23:04:58.60
IV.GALF.HNN. ML:1.5 0.000120377935 0.512 AML other m 2020-11-30T23:04:58.59
IV.GALF.HHE. ML:2.1 0.00056273385 0.3584 AML other m 2020-11-30T23:05:00.53
IV.GALF.HHN. ML:2.1 0.0005803142 0.4224 AML other m 2020-11-30T23:05:01.01
IV.SSY.HHN. ML:2.3 0.00047123285 0.1536 AML other m 2020-11-30T23:05:07.04
IV.GALF.HNE. ML:1.6 0.00015496945000000002 1.1936 AML other m 2020-11-30T23:05:07.38
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