Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 13-02-2021 and time 15:09:34 (Italy) in region 3 km NE Ragalna (CT)

A magnitude ML 2.2 earthquake occured in region: 3 km NE Ragalna (CT), on

  • 13-02-2021 14:09:34 (UTC)
  • 13-02-2021 15:09:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.6540, 14.9580 at 5 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 3 3924 3924
Belpasso CT 7 28108 32032
Santa Maria di Licodia CT 7 7641 39673
Nicolosi CT 8 7463 47136
Biancavilla CT 8 24007 71143
Paternò CT 10 48228 119371
Pedara CT 10 14102 133473
Camporotondo Etneo CT 10 5023 138496
San Pietro Clarenza CT 11 7743 146239
Adrano CT 11 36122 182361
Trecastagni CT 11 10910 193271
Mascalucia CT 12 31958 225229
Viagrande CT 13 8563 233792
Tremestieri Etneo CT 13 20589 254381
Zafferana Etnea CT 14 9517 263898
Gravina di Catania CT 14 25838 289736
Aci Bonaccorsi CT 15 3524 293260
San Giovanni la Punta CT 15 23060 316320
Sant'Agata li Battiati CT 15 9479 325799
Misterbianco CT 15 49410 375209
Motta Sant'Anastasia CT 16 12116 387325
Aci Sant'Antonio CT 16 17984 405309
Milo CT 16 1087 406396
Santa Venerina CT 16 8592 414988
San Gregorio di Catania CT 17 11966 426954
Valverde CT 17 7840 434794
Aci Catena CT 17 29851 464645
Bronte CT 19 19172 483817
Acireale CT 19 52622 536439
Centuripe EN 19 5470 541909
Sant'Alfio CT 19 1582 543491
Aci Castello CT 20 18723 562214

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Acireale (52622 inhabitants)
20 Km NW of Catania (314555 inhabitants)
72 Km NW of Siracusa (122291 inhabitants)
79 Km SW of Reggio di Calabria (183035 inhabitants)
80 Km SW of Messina (238439 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
83 Km N of Ragusa (73313 inhabitants)
87 Km NE of Vittoria (63339 inhabitants)
90 Km N of Modica (54633 inhabitants)
90 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 2.2 2021-02-13
14:09:34		 37.6538 14.958 5 2021-07-12
16:55:14		 Bollettino Sismico Italiano INGV 90893831
Reviewed
Rev200 		ML 1.9 2021-02-13
14:09:33		 37.664 14.937 3 2021-06-07
11:02:27		 Sala Operativa INGV_OE (Catania) 87113631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-13 14:09:34 ± 0.11
Latitude 37.6538 ± 0.0063
Longitude 14.9580 ± 0.0068
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90893831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 590
Semi-minor axis of confidence ellipse (meter) 459
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.70597
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 87113631
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2021-02-13 14:22:07

ML:2.2

Field Value
Value 2.2
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 90893831
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-07 11:02:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-02-13T14:09:59.61 0.6 undecidable manual S 169 78.366 50 0.73 37
IV.HAVL.HHZ. 2021-02-13T14:09:47.90 0.3 undecidable manual P 169 78.366 50 -0.57 58
IV.GALF.HHZ. 2021-02-13T14:09:42.25 0.3 undecidable manual P 281 34.9428 99 0.93 54
IV.EPZF.HHZ. 2021-02-13T14:09:41.74 0.6 undecidable manual S 335 20.868 104 0.03 49
IV.EVRN.HHZ. 2021-02-13T14:09:40.58 0.6 undecidable manual S 76 16.0728 108 0.46 45
IV.ESVO.HHE. 2021-02-13T14:09:39.23 0.6 undecidable manual S 356 13.2756 112 0.03 50
IV.EMFO.HHE. 2021-02-13T14:09:39.77 0.6 undecidable manual S 52 14.7741 110 0.09 49
IV.EPIT.HHN. 2021-02-13T14:09:38.58 0.3 undecidable manual P 26 19.4694 105 0.29 70
IV.ECZM.HHN. 2021-02-13T14:09:38.54 0.6 undecidable manual S 331 9.7791 119 0.43 46
IV.EMSG.HHZ. 2021-02-13T14:09:38.49 0.3 undecidable manual P 358 18.5703 106 0.39 69
IV.EPZF.HHZ. 2021-02-13T14:09:38.67 0.3 undecidable manual P 335 20.868 104 0.12 72
IV.EVRN.HHZ. 2021-02-13T14:09:37.53 0.3 undecidable manual P 76 16.0728 108 -0.1 73
IV.ECBD.HHN. 2021-02-13T14:09:37.57 0.3 undecidable manual P 39 17.9709 107 -0.43 68
IV.ESPC.HHN. 2021-02-13T14:09:37.58 0.6 undecidable manual S 55 7.4814 126 0.16 49
IV.ESCV.HHZ. 2021-02-13T14:09:37.48 0.3 undecidable manual P 310 16.2726 108 -0.18 72
IV.ESVO.HHE. 2021-02-13T14:09:37.22 0.3 undecidable manual P 356 13.2756 112 0.12 73
IV.ENIC.HHZ. 2021-02-13T14:09:37.34 0.6 undecidable manual S 114 6.0939 131 0.28 48
IV.EMFS.HHE. 2021-02-13T14:09:37.84 0.6 undecidable manual S 26 8.0808 124 0.24 48
IV.ECHR.HHE. 2021-02-13T14:09:36.92 0.6 undecidable manual S 312 5.3946 135 0.06 50
IV.ECZM.HHN. 2021-02-13T14:09:36.22 0.1 undecidable manual P 331 9.7791 119 -0.26 95
IV.EMPL.HHZ. 2021-02-13T14:09:36.58 0.6 undecidable manual S 21 2.997 151 0.21 49
IV.ESLN.HHZ. 2021-02-13T14:09:36.88 0.6 undecidable manual S 18 4.5954 139 0.19 49
IV.ESPC.HHN. 2021-02-13T14:09:36.03 0.1 undecidable manual P 55 7.4814 126 -0.05 100
IV.EMFO.HHE. 2021-02-13T14:09:36.97 0.3 undecidable manual P 52 14.7741 110 -0.41 69
IV.EMPL.HHZ. 2021-02-13T14:09:35.24 0.1 negative manual P 21 2.997 151 -0.23 97
IV.ESLN.HHZ. 2021-02-13T14:09:35.36 0.1 undecidable manual P 18 4.5954 139 -0.29 95
IV.ENIC.HHZ. 2021-02-13T14:09:35.98 0.1 undecidable manual P 114 6.0939 131 0.11 99
IV.EMFS.HHE. 2021-02-13T14:09:35.98 0.1 undecidable manual P 26 8.0808 124 -0.2 97
IV.ECHR.HHE. 2021-02-13T14:09:35.28 0.1 undecidable manual P 312 5.3946 135 -0.47 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HNN. ML:2.3 0.0022400000000000002 1.78 AML other m 2021-02-13T14:09:41.91
IV.EVRN.HHN. ML:2.3 0.0019173795 0.3968 AML other m 2021-02-13T14:09:47.93
IV.EVRN.HNE. ML:2.1 0.0014017935 0.2496 AML other m 2021-02-13T14:09:44.45
IV.EVRN.HHE. ML:2.3 0.0018550855 0.256 AML other m 2021-02-13T14:09:42.02
IV.ESCV.HHE. ML:2.0 0.0009858392500000002 0.2432 AML other m 2021-02-13T14:09:45.77
IV.ESCV.HHN. ML:2.0 0.0011390939 0.3776 AML other m 2021-02-13T14:09:44.67
IV.EMSG.HHE. ML:2.3 0.0016699999999999998 0.58 AML other m 2021-02-13T14:09:45.52
IV.EMSG.HHN. ML:2.2 0.001563663 0.3648 AML other m 2021-02-13T14:09:49.55
IV.HAVL.HHE. ML:1.9 0.000123772055 0.2368 AML other m 2021-02-13T14:10:00.28
IV.HAVL.HHN. ML:2.2 0.0002279505 0.3008 AML other m 2021-02-13T14:10:00.13
IV.EMPL.HHE. ML:0.0 0.021123874999999997 0.1792 AML other m 2021-02-13T14:09:38.70
IV.EMPL.HHN. ML:0.0 0.028377029999999998 0.16 AML other m 2021-02-13T14:09:38.01
IV.ENIC.HNN. ML:0.0 0.006326738 0.2368 AML other m 2021-02-13T14:09:40.35
IV.ENIC.HHE. ML:0.0 0.004188608 0.2176 AML other m 2021-02-13T14:09:40.79
IV.ENIC.HHN. ML:0.0 0.0056752705 0.2432 AML other m 2021-02-13T14:09:40.45
IV.ENIC.HNE. ML:0.0 0.0049849595 0.2048 AML other m 2021-02-13T14:09:39.18
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