Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 20-09-2020 and time 10:18:52 (Italy) in region 2 km NW Milo (CT)

A magnitude ML 1.4 earthquake occured in region: 2 km NW Milo (CT), on

  • 20-09-2020 08:18:52 (UTC)
  • 20-09-2020 10:18:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7370, 15.1090 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
Sant'Alfio CT 3 1582 2669
Zafferana Etnea CT 5 9517 12186
Santa Venerina CT 6 8592 20778
Giarre CT 7 27659 48437
Mascali CT 8 14282 62719
Riposto CT 8 14838 77557
Piedimonte Etneo CT 10 3963 81520
Fiumefreddo di Sicilia CT 11 9623 91143
Linguaglossa CT 12 5403 96546
Trecastagni CT 13 10910 107456
Pedara CT 14 14102 121558
Viagrande CT 14 8563 130121
Calatabiano CT 14 5308 135429
Aci Sant'Antonio CT 15 17984 153413
Acireale CT 15 52622 206035
Aci Catena CT 15 29851 235886
Nicolosi CT 15 7463 243349
Aci Bonaccorsi CT 15 3524 246873
Castiglione di Sicilia CT 16 3215 250088
Gaggi ME 17 3184 253272
Valverde CT 18 7840 261112
San Giovanni la Punta CT 18 23060 284172
Tremestieri Etneo CT 18 20589 304761
Francavilla di Sicilia ME 19 3945 308706
Mascalucia CT 19 31958 340664
Motta Camastra ME 19 845 341509
Moio Alcantara ME 19 717 342226
Giardini-Naxos ME 19 9415 351641
Ragalna CT 19 3924 355565
San Gregorio di Catania CT 19 11966 367531
San Pietro Clarenza CT 20 7743 375274
Sant'Agata li Battiati CT 20 9479 384753
Belpasso CT 20 28108 412861
Gravina di Catania CT 20 25838 438699
Taormina ME 20 10960 449659

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NW of Acireale (52622 inhabitants)
26 Km N of Catania (314555 inhabitants)
63 Km SW of Reggio di Calabria (183035 inhabitants)
64 Km SW of Messina (238439 inhabitants)
77 Km N of Siracusa (122291 inhabitants)
96 Km E of Caltanissetta (63360 inhabitants)
96 Km NE of Ragusa (73313 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 1.4 2020-09-20
08:18:52		 37.7368 15.1092 10 2021-02-26
14:56:10		 Bollettino Sismico Italiano INGV 85342191
Reviewed
Rev200 		ML 1.3 2020-09-20
08:18:52		 37.742 15.096 4 2020-12-10
16:37:11		 Sala Operativa INGV_OE (Catania) 83051631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-20 08:18:52 ± 0.2
Latitude 37.7368 ± 0.0081
Longitude 15.1092 ± 0.0136
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 85342191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1206
Semi-minor axis of confidence ellipse (meter) 459
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 1210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.25361
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 85342191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-10 16:36:55

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 83051631
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-20 08:23:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECTS.HHZ. 2020-09-20T08:18:59.42 0.6 undecidable manual S 4 16.1727 121 0.43 47
IV.EPZF.HHZ. 2020-09-20T08:18:58.22 0.3 undecidable manual P 294 24.1536 112 0.56 67
IV.EPOZ.HHZ. 2020-09-20T08:18:58.24 0.6 undecidable manual S 136 9.9789 134 0.94 39
IV.AIO.HHZ. 2020-09-20T08:18:58.31 0.3 undecidable manual P 23 28.1496 50 -0.06 75
IV.EPIT.HHN. 2020-09-20T08:18:57.64 0.6 undecidable manual S 331 9.4794 136 0.48 47
IV.EVRN.HNZ. 2020-09-20T08:18:56.29 0.6 undecidable manual S 156 5.7942 149 -0.1 51
IV.EMSG.HHZ. 2020-09-20T08:18:56.66 0.3 undecidable manual P 304 16.7721 120 0.32 72
IV.EMCN.HHZ. 2020-09-20T08:18:56.96 0.6 undecidable manual S 312 8.9799 138 -0.08 51
IV.ECBD.HHN. 2020-09-20T08:18:56.05 0.6 undecidable manual S 338 5.1948 152 -0.23 50
IV.EPIT.HHN. 2020-09-20T08:18:55.21 0.3 undecidable manual P 331 9.4794 136 0.04 77
IV.ESLN.HHZ. 2020-09-20T08:18:55.51 0.3 undecidable manual P 248 12.7761 127 -0.16 75
IV.EPOZ.HHZ. 2020-09-20T08:18:55.47 0.3 undecidable manual P 136 9.9789 134 0.22 75
IV.ECTS.HHZ. 2020-09-20T08:18:55.96 0.1 undecidable manual P 4 16.1727 121 -0.26 97
IV.ECBD.HHN. 2020-09-20T08:18:54.24 0.1 undecidable manual P 338 5.1948 152 -0.42 96
IV.EVRN.HNZ. 2020-09-20T08:18:54.35 0.1 positive manual P 156 5.7942 149 -0.37 97
IV.EMCN.HHZ. 2020-09-20T08:18:54.90 0.1 undecidable manual P 312 8.9799 138 -0.2 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPOZ.HHE. ML:1.6 0.0005819999999999999 0.58 AML other m 2020-09-20T08:18:59.36
IV.EPOZ.HNE. ML:1.2 0.00020999999999999998 0.56 AML other m 2020-09-20T08:18:59.65
IV.EPOZ.HHN. ML:1.8 0.0007915 1.62 AML other m 2020-09-20T08:18:59.93
IV.EPOZ.HNN. ML:1.4 0.000288 0.98 AML other m 2020-09-20T08:19:01.83
IV.AIO.HHE. ML:1.2 0.00008209999999999999 0.5 AML other m 2020-09-20T08:19:04.78
IV.AIO.HHN. ML:1.2 0.00008565000000000001 0.48 AML other m 2020-09-20T08:19:05.10
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