Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 21-09-2020 and time 07:16:44 (Italy) in region 2 km W Milo (CT)

A magnitude ML 2.2 earthquake occured in region: 2 km W Milo (CT), on

  • 21-09-2020 05:16:44 (UTC)
  • 21-09-2020 07:16:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7300, 15.0940 at 10 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
Milo CT 2 1087 1087
Zafferana Etnea CT 4 9517 10604
Sant'Alfio CT 5 1582 12186
Santa Venerina CT 6 8592 20778
Giarre CT 8 27659 48437
Mascali CT 10 14282 62719
Riposto CT 10 14838 77557
Piedimonte Etneo CT 12 3963 81520
Trecastagni CT 12 10910 92430
Fiumefreddo di Sicilia CT 12 9623 102053
Pedara CT 13 14102 116155
Viagrande CT 13 8563 124718
Linguaglossa CT 13 5403 130121
Aci Sant'Antonio CT 14 17984 148105
Nicolosi CT 14 7463 155568
Acireale CT 14 52622 208190
Aci Catena CT 15 29851 238041
Aci Bonaccorsi CT 15 3524 241565
Calatabiano CT 16 5308 246873
Valverde CT 17 7840 254713
San Giovanni la Punta CT 17 23060 277773
Tremestieri Etneo CT 17 20589 298362
Castiglione di Sicilia CT 17 3215 301577
Ragalna CT 17 3924 305501
Mascalucia CT 18 31958 337459
San Gregorio di Catania CT 18 11966 349425
Belpasso CT 18 28108 377533
San Pietro Clarenza CT 18 7743 385276
Gaggi ME 19 3184 388460
Gravina di Catania CT 19 25838 414298
Sant'Agata li Battiati CT 19 9479 423777
Moio Alcantara ME 19 717 424494
Camporotondo Etneo CT 20 5023 429517
Francavilla di Sicilia ME 20 3945 433462
Aci Castello CT 20 18723 452185
Motta Camastra ME 20 845 453030

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km NW of Acireale (52622 inhabitants)
25 Km N of Catania (314555 inhabitants)
64 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
76 Km N of Siracusa (122291 inhabitants)
95 Km E of Caltanissetta (63360 inhabitants)
95 Km NE of Ragusa (73313 inhabitants)
100 Km NE of Vittoria (63339 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 2020-09-21
05:16:44		 37.7295 15.0942 10 2021-02-26
14:56:10		 Bollettino Sismico Italiano INGV 85446171
Reviewed
Rev200 		ML 2.1 2020-09-21
05:16:44		 37.734 15.082 6 2020-12-15
13:30:29		 Sala Operativa INGV_OE (Catania) 83090221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 05:16:44 ± 0.08
Latitude 37.7295 ± 0.0045
Longitude 15.0942 ± 0.0068
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85446171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 636
Semi-minor axis of confidence ellipse (meter) 506
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 282
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.82378
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:2.2

Field Value
Value 2.2
Uncertainty 0.4
Num. used stations 42
Type of magnitude ML
Reference to an origin 85446171
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-15 13:30:13

ML:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 83090221
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-21 05:27:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-09-21T05:17:05.42 0.6 undecidable manual S 182 63.492 50 0.86 36
MN.CEL.HHZ. 2020-09-21T05:17:01.16 0.6 undecidable manual P 50 91.4418 50 0.63 37
IV.RAFF.HHZ. 2020-09-21T05:16:59.79 0.3 undecidable manual P 229 85.5477 50 0.17 63
IV.GMB.BHZ. 2020-09-21T05:16:59.33 0.6 undecidable manual P 53 80.5638 50 0.47 40
IV.HLNI.HHZ. 2020-09-21T05:16:59.82 0.6 undecidable manual S 205 46.5201 50 -0.23 45
IV.MSRU.HHZ. 2020-09-21T05:16:57.23 0.3 undecidable manual P 31 69.4749 50 0.08 67
IV.IVPL.HHZ. 2020-09-21T05:16:57.92 0.3 undecidable manual P 352 72.4719 50 0.31 63
IV.SSY.HHZ. 2020-09-21T05:16:56.15 0.3 undecidable manual P 182 63.492 50 -0.07 68
IV.AIO.HHZ. 2020-09-21T05:16:55.22 0.6 undecidable manual S 24 29.4483 50 -0.26 46
IV.MSFR.HHZ. 2020-09-21T05:16:55.86 0.3 undecidable manual P 308 55.5 50 0.87 54
IV.HLNI.HHZ. 2020-09-21T05:16:53.00 0.3 undecidable manual P 205 46.5201 50 -0.62 61
IV.MUCR.HHZ. 2020-09-21T05:16:52.70 0.1 positive manual P 331 39.7269 50 0.13 93
IV.ECTS.HHZ. 2020-09-21T05:16:51.50 0.6 undecidable manual S 8 17.0718 119 -0.12 48
IV.NOV.HHZ. 2020-09-21T05:16:51.28 0.1 positive manual P 6 33.3444 50 -0.29 91
IV.EMSG.HHZ. 2020-09-21T05:16:51.46 0.6 undecidable manual S 309 16.1727 120 0.11 49
IV.EPZF.HHZ. 2020-09-21T05:16:50.11 0.3 undecidable manual P 297 23.2545 112 0.24 70
IV.EFIU.HHE. 2020-09-21T05:16:50.72 0.6 undecidable manual S 57 12.1767 128 0.53 45
IV.EPOZ.HHZ. 2020-09-21T05:16:50.80 0.6 undecidable manual S 128 10.4784 132 1.06 36
IV.AIO.HHZ. 2020-09-21T05:16:50.53 0.1 positive manual P 24 29.4483 50 -0.45 88
IV.EPIT.HHN. 2020-09-21T05:16:50.57 0.6 undecidable manual S 340 9.6792 135 1.03 36
IV.ESLN.HHZ. 2020-09-21T05:16:49.91 0.6 undecidable manual S 249 11.2776 130 -0.03 50
IV.EMCN.HNZ. 2020-09-21T05:16:49.68 0.6 undecidable manual S 322 8.6802 138 0.38 46
IV.ESML.HHZ. 2020-09-21T05:16:49.88 0.3 undecidable manual P 237 22.5552 113 0.15 72
IV.EVRN.HNZ. 2020-09-21T05:16:48.80 0.6 undecidable manual S 141 5.7942 149 0.11 50
IV.ECTS.HHZ. 2020-09-21T05:16:48.33 0.1 positive manual P 8 17.0718 119 -0.42 91
IV.EMSG.HHZ. 2020-09-21T05:16:48.65 0.3 undecidable manual P 309 16.1727 120 0.05 74
IV.ENIC.HHZ. 2020-09-21T05:16:48.02 0.3 undecidable manual P 210 12.5763 127 0.03 75
IV.EFIU.HHE. 2020-09-21T05:16:47.58 0.1 undecidable manual P 57 12.1767 128 -0.34 93
IV.EPOZ.HHZ. 2020-09-21T05:16:47.74 0.1 positive manual P 128 10.4784 132 0.08 99
IV.EPIT.HHN. 2020-09-21T05:16:47.57 0.1 undecidable manual P 340 9.6792 135 0.03 100
IV.ECNE.HHN. 2020-09-21T05:16:47.48 0.3 undecidable manual P 296 8.9799 137 0.02 75
IV.ESLN.HHZ. 2020-09-21T05:16:47.22 0.1 undecidable manual P 249 11.2776 130 -0.56 88
IV.EMCN.HNZ. 2020-09-21T05:16:47.26 0.1 undecidable manual P 322 8.6802 138 -0.15 98
IV.EVRN.HNZ. 2020-09-21T05:16:46.71 0.1 positive manual P 141 5.7942 149 -0.35 94
IV.ECBD.HHN. 2020-09-21T05:16:46.67 0.1 undecidable manual P 353 5.6943 149 -0.38 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EVRN.HHE. ML:2.9 0.013600000000000001 1.62 AML other m 2020-09-21T05:16:48.11
IV.EVRN.HNE. ML:2.9 0.01305 0.32 AML other m 2020-09-21T05:16:49.07
IV.EVRN.HNN. ML:2.9 0.01445 0.16 AML other m 2020-09-21T05:16:49.36
IV.EVRN.HHN. ML:3.0 0.01625 0.64 AML other m 2020-09-21T05:16:49.05
IV.EMCN.HHN. ML:2.8 0.008245 1.22 AML other m 2020-09-21T05:16:50.69
IV.EMCN.HNN. ML:2.8 0.008305 1.24 AML other m 2020-09-21T05:16:50.70
IV.EPOZ.HHN. ML:2.5 0.004405 1.06 AML other m 2020-09-21T05:16:51.67
IV.ECTS.HHE. ML:2.0 0.0009130000000000001 0.9 AML other m 2020-09-21T05:16:52.56
IV.EMCN.HNE. ML:2.7 0.007365 0.16 AML other m 2020-09-21T05:16:52.32
IV.EMCN.HHE. ML:2.7 0.007685 0.18 AML other m 2020-09-21T05:16:52.32
IV.EPOZ.HHE. ML:2.5 0.004220000000000001 0.34 AML other m 2020-09-21T05:16:52.81
IV.EPOZ.HNE. ML:2.1 0.001605 0.32 AML other m 2020-09-21T05:16:52.83
IV.EPOZ.HNN. ML:2.1 0.0016600000000000002 1 AML other m 2020-09-21T05:16:53.06
IV.ENIC.HHE. ML:2.5 0.0037800000000000004 0.34 AML other m 2020-09-21T05:16:54.70
IV.ENIC.HNE. ML:2.5 0.0037400000000000003 0.32 AML other m 2020-09-21T05:16:54.87
IV.ENIC.HHN. ML:2.4 0.0027199999999999998 0.14 AML other m 2020-09-21T05:16:54.69
IV.ECTS.HHN. ML:2.0 0.0008935 0.88 AML other m 2020-09-21T05:16:54.47
IV.EMSG.HHN. ML:2.6 0.00362 0.38 AML other m 2020-09-21T05:16:56.23
IV.AIO.HHE. ML:2.0 0.0005275000000000001 0.44 AML other m 2020-09-21T05:16:56.06
IV.ENIC.HNN. ML:2.4 0.0029500000000000004 1.22 AML other m 2020-09-21T05:16:56.83
IV.EMSG.HHE. ML:2.5 0.00262 0.54 AML other m 2020-09-21T05:16:57.03
IV.AIO.HHN. ML:2.0 0.0005705 0.3 AML other m 2020-09-21T05:16:57.20
IV.ESML.HHN. ML:1.9 0.0005164999999999999 0.58 AML other m 2020-09-21T05:16:58.03
IV.EPZF.HHE. ML:2.3 0.0012749999999999999 1.34 AML other m 2020-09-21T05:16:58.85
IV.ESML.HHE. ML:2.0 0.000646 0.46 AML other m 2020-09-21T05:17:00.08
IV.HLNI.HHE. ML:1.5 0.00009434999999999999 0.66 AML other m 2020-09-21T05:17:01.18
IV.EPZF.HHN. ML:2.2 0.0010499999999999997 0.32 AML other m 2020-09-21T05:17:01.52
IV.NOV.HHE. ML:2.4 0.001125 1.6 AML other m 2020-09-21T05:17:01.04
IV.MUCR.HHN. ML:2.1 0.00041049999999999995 0.4 AML other m 2020-09-21T05:17:02.10
IV.MUCR.HHE. ML:2.0 0.00035499999999999996 0.28 AML other m 2020-09-21T05:17:02.51
IV.NOV.HHN. ML:2.5 0.0012549999999999998 0.46 AML other m 2020-09-21T05:17:02.88
IV.HLNI.HHN. ML:1.5 0.00008885 1.54 AML other m 2020-09-21T05:17:03.93
IV.MSFR.HHN. ML:1.4 0.0000661 1.54 AML other m 2020-09-21T05:17:05.95
IV.MSFR.HHE. ML:1.5 0.00007055000000000001 0.42 AML other m 2020-09-21T05:17:06.53
IV.MSRU.HHN. ML:1.8 0.00011335 1.66 AML other m 2020-09-21T05:17:10.90
IV.MSRU.HHE. ML:1.9 0.00014700000000000002 0.3 AML other m 2020-09-21T05:17:11.31
IV.RAFF.HHE. ML:2.0 0.0001295 1.3 AML other m 2020-09-21T05:17:13.67
IV.RAFF.HHN. ML:2.0 0.0001181 0.26 AML other m 2020-09-21T05:17:14.13
IV.IVPL.HHN. ML:2.4 0.0004365 0.44 AML other m 2020-09-21T05:17:16.99
IV.IVPL.HHE. ML:2.3 0.0003345 0.44 AML other m 2020-09-21T05:17:17.22
MN.CEL.HHN. ML:1.7 0.0000577 1.2 AML other m 2020-09-21T05:17:17.78
MN.CEL.HHE. ML:1.6 0.000052199999999999995 0.5 AML other m 2020-09-21T05:17:18.73
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