Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 22-10-2020 and time 19:35:49 (Italy) in region 9 km N Ragalna (CT)

A magnitude ML 2.2 earthquake occured in region: 9 km N Ragalna (CT), on

  • 22-10-2020 17:35:49 (UTC)
  • 22-10-2020 19:35:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7090, 14.9410 at 26 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 9 3924 3924
Biancavilla CT 10 24007 27931
Adrano CT 11 36122 64053
Santa Maria di Licodia CT 11 7641 71694
Nicolosi CT 13 7463 79157
Bronte CT 13 19172 98329
Belpasso CT 13 28108 126437
Zafferana Etnea CT 14 9517 135954
Pedara CT 15 14102 150056
Paternò CT 15 48228 198284
Maletto CT 15 3920 202204
Milo CT 16 1087 203291
Trecastagni CT 16 10910 214201
Camporotondo Etneo CT 17 5023 219224
San Pietro Clarenza CT 17 7743 226967
Viagrande CT 18 8563 235530
Santa Venerina CT 18 8592 244122
Mascalucia CT 18 31958 276080
Sant'Alfio CT 18 1582 277662
Tremestieri Etneo CT 19 20589 298251
Randazzo CT 19 10900 309151
Aci Bonaccorsi CT 19 3524 312675
Gravina di Catania CT 20 25838 338513
San Giovanni la Punta CT 20 23060 361573
Aci Sant'Antonio CT 20 17984 379557

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NW of Acireale (52622 inhabitants)
26 Km NW of Catania (314555 inhabitants)
76 Km SW of Reggio di Calabria (183035 inhabitants)
76 Km SW of Messina (238439 inhabitants)
79 Km NW of Siracusa (122291 inhabitants)
81 Km E of Caltanissetta (63360 inhabitants)
89 Km N of Ragusa (73313 inhabitants)
92 Km NE of Vittoria (63339 inhabitants)
94 Km NE of Gela (75827 inhabitants)
96 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 2.2 2020-10-22
17:35:49		 37.709 14.9413 26 2021-02-26
14:56:19		 Bollettino Sismico Italiano INGV 87151561
Reviewed
Rev200 		ML 2.1 2020-10-22
17:35:48		 37.714 14.891 21 2021-02-23
12:05:51		 Sala Operativa INGV_OE (Catania) 84032511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-22 17:35:49 ± 0.12
Latitude 37.7090 ± 0.0045
Longitude 14.9413 ± 0.0080
Depth (km) 26 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87151561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 685
Semi-minor axis of confidence ellipse (meter) 128
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 680.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 36
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.96947
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 84032511
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-10-22 17:48:36

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 87151561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-14 14:19:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HMDC.HHZ. 2020-10-22T17:36:14.98 0.3 undecidable manual S 190 84.3489 102 0.41 61
IV.HAVL.HHZ. 2020-10-22T17:36:14.57 0.6 undecidable manual S 169 84.6486 102 -0.07 44
IV.MSRU.HHZ. 2020-10-22T17:36:13.79 0.6 undecidable manual S 39 79.0653 103 0.61 39
IV.SSY.HHZ. 2020-10-22T17:36:09.27 0.3 undecidable manual S 169 62.2932 107 0.42 64
IV.CLTA.HHZ. 2020-10-22T17:36:08.97 0.6 undecidable manual P 235 105.7164 99 1.89 18
IV.SCIAR.HHZ. 2020-10-22T17:36:07.99 0.1 undecidable manual P 284 107.6145 99 0.63 72
IV.CAGR.HHZ. 2020-10-22T17:36:07.30 0.6 undecidable manual S 256 39.9267 117 3.99 2
IV.AGST.EHZ. 2020-10-22T17:36:07.53 0.3 undecidable manual S 153 56.0994 109 0.24 67
IV.HAGA.HHZ. 2020-10-22T17:36:06.05 0.3 undecidable manual S 158 50.616 111 0.14 69
MN.CEL.HHZ. 2020-10-22T17:36:06.82 0.1 undecidable manual P 53 103.3188 99 0.11 84
IV.HCRL.HHZ. 2020-10-22T17:36:05.39 0.3 undecidable manual S 170 47.9187 112 0.15 69
IV.MUCR.HHZ. 2020-10-22T17:36:03.18 0.3 undecidable manual S 351 37.5291 119 0.45 66
IV.HMDC.HHZ. 2020-10-22T17:36:03.31 0.1 undecidable manual P 190 84.3489 102 -0.53 80
IV.MSRU.HHZ. 2020-10-22T17:36:03.41 0.1 undecidable manual P 39 79.0653 103 0.38 84
IV.HLNI.HHZ. 2020-10-22T17:36:03.34 0.3 undecidable manual S 189 40.4262 117 -0.09 72
IV.HAVL.HHZ. 2020-10-22T17:36:03.46 0.1 undecidable manual P 169 84.6486 102 -0.42 82
IV.CPTP.HHZ. 2020-10-22T17:36:03.80 0.6 undecidable manual P 244 76.2681 103 1.19 30
IV.AIO.HHZ. 2020-10-22T17:36:03.40 0.3 undecidable manual S 41 38.7279 118 0.39 68
IV.PLLN.EHZ. 2020-10-22T17:36:03.57 0.1 undecidable manual P 294 76.6677 103 0.89 69
IV.GALF.HHZ. 2020-10-22T17:36:02.41 0.3 undecidable manual S 270 32.9448 123 0.74 59
IV.PETRA.HHZ. 2020-10-22T17:36:02.13 0.1 undecidable manual P 281 73.7706 104 -0.12 89
IV.RAFF.HHZ. 2020-10-22T17:36:01.93 0.3 undecidable manual P 224 74.2701 104 -0.38 63
IV.EFIU.HHZ. 2020-10-22T17:36:01.45 0.6 undecidable manual S 69 25.2525 131 1.42 30
IV.EPOZ.HNZ. 2020-10-22T17:36:00.86 0.6 undecidable manual S 101 22.0668 135 1.44 29
IV.SSY.HHZ. 2020-10-22T17:36:00.32 0.1 undecidable manual P 169 62.2932 107 -0.21 89
IV.ECTS.HHZ. 2020-10-22T17:35:59.62 0.3 undecidable manual S 39 24.8529 132 -0.33 69
IV.AGST.EHZ. 2020-10-22T17:35:59.36 0.1 undecidable manual P 153 56.0994 109 -0.28 89
IV.ESML.HHZ. 2020-10-22T17:35:58.26 0.3 undecidable manual S 208 11.4774 154 0.5 68
IV.ENIC.HHZ. 2020-10-22T17:35:58.03 0.6 undecidable manual S 141 11.0778 154 0.31 48
IV.HAGA.HHZ. 2020-10-22T17:35:58.51 0.3 undecidable manual P 158 50.616 111 -0.33 67
IV.CAGR.HHZ. 2020-10-22T17:35:58.02 0.1 undecidable manual P 256 39.9267 117 0.69 80
IV.EPZF.HHZ. 2020-10-22T17:35:58.61 0.6 undecidable manual S 330 14.7741 147 0.42 46
IV.EPIT.HHZ. 2020-10-22T17:35:58.48 0.3 undecidable manual S 42 15.1737 147 0.22 73
IV.HCRL.HHZ. 2020-10-22T17:35:58.08 0.1 undecidable manual P 170 47.9187 112 -0.37 89
IV.EVRN.HHZ. 2020-10-22T17:35:58.19 0.3 undecidable manual S 97 17.1717 143 -0.37 70
IV.AIO.HHZ. 2020-10-22T17:35:57.33 0.1 undecidable manual P 41 38.7279 118 0.17 94
IV.ECHR.HHZ. 2020-10-22T17:35:57.04 0.3 undecidable manual S 225 3.5964 171 -0.08 76
IV.MSFR.HHZ. 2020-10-22T17:35:57.74 0.1 undecidable manual P 320 47.3193 113 -0.62 82
IV.HLNI.HHZ. 2020-10-22T17:35:56.80 0.1 undecidable manual P 189 40.4262 117 -0.6 84
IV.MUCR.HHZ. 2020-10-22T17:35:56.41 0.1 undecidable manual P 351 37.5291 119 -0.59 84
IV.EPOZ.HNZ. 2020-10-22T17:35:55.33 0.1 undecidable manual P 101 22.0668 135 0.24 95
IV.EVRN.HHZ. 2020-10-22T17:35:55.26 0.3 undecidable manual P 97 17.1717 143 0.67 64
IV.EFIU.HHZ. 2020-10-22T17:35:55.63 0.1 undecidable manual P 69 25.2525 131 0.19 96
IV.GALF.HHZ. 2020-10-22T17:35:55.89 0.1 undecidable manual P 270 32.9448 123 -0.5 89
IV.ECTS.HHZ. 2020-10-22T17:35:55.09 0.1 undecidable manual P 39 24.8529 132 -0.31 93
IV.ENIC.HHZ. 2020-10-22T17:35:54.43 0.1 undecidable manual P 141 11.0778 154 0.32 95
IV.EMCN.HHZ. 2020-10-22T17:35:54.11 0.1 undecidable manual P 42 12.1767 152 -0.07 100
IV.EPIT.HHZ. 2020-10-22T17:35:54.35 0.1 undecidable manual P 42 15.1737 147 -0.06 100
IV.ECHR.HHZ. 2020-10-22T17:35:53.22 0.1 positive manual P 225 3.5964 171 -0.54 92
IV.EMSG.HHZ. 2020-10-22T17:35:53.64 0.3 positive manual P 3 12.3765 152 -0.56 67
IV.ECBD.HHZ. 2020-10-22T17:35:53.91 0.1 undecidable manual P 58 14.9739 147 -0.49 91
IV.ESLN.HHZ. 2020-10-22T17:35:53.44 0.1 undecidable manual P 121 3.3966 172 -0.32 97
IV.ESML.HHZ. 2020-10-22T17:35:53.49 0.1 undecidable manual P 208 11.4774 154 -0.64 87
IV.EPZF.HHZ. 2020-10-22T17:35:53.62 0.1 positive manual P 330 14.7741 147 -0.76 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:2.6 0.00231 1.48 AML other m 2020-10-22T17:35:58.04
IV.EMCN.HHN. ML:2.5 0.0016914450000000002 0.2304 AML other m 2020-10-22T17:35:58.82
IV.EMCN.HNN. ML:2.5 0.0016515800000000001 0.2432 AML other m 2020-10-22T17:35:58.82
IV.EPZF.HHN. ML:2.4 0.0014303360000000002 0.32 AML other m 2020-10-22T17:35:59.37
IV.EMSG.HHE. ML:2.4 0.001418974 0.3968 AML other m 2020-10-22T17:36:03.05
IV.ESML.HHE. ML:2.4 0.0012549999999999998 0.24 AML other m 2020-10-22T17:36:00.26
IV.EMCN.HNE. ML:2.6 0.0019500000000000001 0.38 AML other m 2020-10-22T17:36:01.65
IV.EMCN.HHE. ML:2.6 0.00198 0.38 AML other m 2020-10-22T17:36:01.65
IV.EMSG.HHN. ML:2.3 0.001135 0.26 AML other m 2020-10-22T17:36:03.22
IV.MUCR.HHE. ML:1.8 0.000186 0.4 AML other m 2020-10-22T17:36:03.38
IV.GALF.HHN. ML:2.5 0.0010165 0.32 AML other m 2020-10-22T17:36:03.83
IV.GALF.HHE. ML:2.6 0.001426493 0.6272 AML other m 2020-10-22T17:36:03.98
IV.HLNI.HHN. ML:2.0 0.00031371855 0.1152 AML other m 2020-10-22T17:36:03.90
IV.HLNI.HHE. ML:2.0 0.000284 0.1 AML other m 2020-10-22T17:36:04.00
IV.AIO.HHE. ML:2.2 0.0004995 1.56 AML other m 2020-10-22T17:36:04.94
IV.AIO.HHN. ML:2.0 0.00030813235 0.3328 AML other m 2020-10-22T17:36:04.74
IV.MUCR.HHN. ML:1.8 0.00019578935 0.5632 AML other m 2020-10-22T17:36:05.79
IV.MSFR.HHN. ML:1.5 0.00007921597500000001 0.2176 AML other m 2020-10-22T17:36:06.66
IV.HAGA.HHE. ML:2.0 0.00022409950000000002 0.2944 AML other m 2020-10-22T17:36:06.41
IV.HAGA.HHN. ML:1.8 0.000146222045 0.1152 AML other m 2020-10-22T17:36:06.35
IV.HCRL.HHE. ML:2.1 0.00029070185 0.1792 AML other m 2020-10-22T17:36:07.71
IV.MSFR.HHE. ML:1.6 0.0000958986 0.2944 AML other m 2020-10-22T17:36:07.17
IV.AGST.EHE. ML:2.2 0.00033063725 0.1536 AML other m 2020-10-22T17:36:10.32
IV.AGST.EHN. ML:2.2 0.0003333878 0.2048 AML other m 2020-10-22T17:36:09.74
IV.HCRL.HHN. ML:2.0 0.00023573645 0.1664 AML other m 2020-10-22T17:36:09.04
IV.SSY.HHE. ML:2.7 0.00099170845 0.1664 AML other m 2020-10-22T17:36:09.47
IV.SSY.HHN. ML:3.1 0.0022199999999999998 0.28 AML other m 2020-10-22T17:36:12.48
IV.RAFF.HHN. ML:1.8 0.000093075995 0.4352 AML other m 2020-10-22T17:36:14.12
IV.RAFF.HHE. ML:1.9 0.000110472715 0.4864 AML other m 2020-10-22T17:36:14.16
IV.HAVL.HHN. ML:2.8 0.000825214 0.1536 AML other m 2020-10-22T17:36:15.96
IV.HAVL.HHE. ML:2.6 0.00050227485 0.1664 AML other m 2020-10-22T17:36:15.83
IV.HMDC.HHE. ML:2.4 0.0003395319 0.2816 AML other m 2020-10-22T17:36:16.27
IV.HMDC.HHN. ML:2.3 0.00024118810000000002 0.1024 AML other m 2020-10-22T17:36:17.17
IV.MSRU.HHN. ML:2.0 0.0001235 0.26 AML other m 2020-10-22T17:36:17.25
IV.PLLN.EHE. ML:2.3 0.0002845 0.64 AML other m 2020-10-22T17:36:17.82
IV.PETRA.HHN. ML:1.8 0.00009325605 0.4736 AML other m 2020-10-22T17:36:20.22
IV.PLLN.EHN. ML:2.1 0.0001805 0.42 AML other m 2020-10-22T17:36:18.23
IV.PETRA.HHE. ML:1.9 0.00011949999999999999 0.48 AML other m 2020-10-22T17:36:18.53
IV.MSRU.HHE. ML:2.1 0.000149 0.4 AML other m 2020-10-22T17:36:19.01
MN.CEL.HHN. ML:1.6 0.000034149999999999997 0.96 AML other m 2020-10-22T17:36:23.48
MN.CEL.HHE. ML:1.6 0.00004215 0.24 AML other m 2020-10-22T17:36:24.24
IV.ESLN.HHE. ML:2.3 0.001101934 0.3584 AML other m 2020-10-22T17:36:00.99
IV.GALF.HNN. ML:1.7 0.00018710145 0.4736 AML other m 2020-10-22T17:36:05.05
IV.GALF.HNE. ML:1.8 0.0002018209 0.9088 AML other m 2020-10-22T17:36:06.32
IV.HMDC.HNE. ML:2.4 0.00031696775 0.2688 AML other m 2020-10-22T17:36:16.28
IV.HMDC.HNN. ML:2.3 0.00024385469999999997 0.2432 AML other m 2020-10-22T17:36:16.33
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