Earthquake with magnitude of ML 1.8 on date 23-09-2020 and time 20:34:02 (Italy) in region 11 km W Milo (CT)

A magnitude ML 1.8 earthquake occured in region: 11 km W Milo (CT), on

  • 23-09-2020 18:34:02 (UTC)
  • 23-09-2020 20:34:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7520, 14.9920 at 3 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.

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 11 1087 1087
Zafferana Etnea CT 12 9517 10604
Sant'Alfio CT 13 1582 12186
Maletto CT 14 3920 16106
Ragalna CT 14 3924 20030
Bronte CT 15 19172 39202
Randazzo CT 15 10900 50102
Santa Venerina CT 15 8592 58694
Nicolosi CT 16 7463 66157
Pedara CT 16 14102 80259
Biancavilla CT 16 24007 104266
Trecastagni CT 17 10910 115176
Linguaglossa CT 17 5403 120579
Adrano CT 17 36122 156701
Giarre CT 17 27659 184360
Moio Alcantara ME 17 717 185077
Santa Maria di Licodia CT 18 7641 192718
Piedimonte Etneo CT 18 3963 196681
Belpasso CT 18 28108 224789
Mascali CT 18 14282 239071
Viagrande CT 18 8563 247634
Santa Domenica Vittoria ME 19 980 248614
Castiglione di Sicilia CT 19 3215 251829
Riposto CT 19 14838 266667
Malvagna ME 20 733 267400
Fiumefreddo di Sicilia CT 20 9623 277023
Aci Bonaccorsi CT 20 3524 280547
Aci Sant'Antonio CT 20 17984 298531
San Pietro Clarenza CT 20 7743 306274

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
29 Km N of Catania (314555 inhabitants)
70 Km SW of Reggio di Calabria (183035 inhabitants)
70 Km SW of Messina (238439 inhabitants)
81 Km NW of Siracusa (122291 inhabitants)
87 Km E of Caltanissetta (63360 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
98 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 1.8 2020-09-23
18:34:02
37.7515 14.9925 3 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86701231
Reviewed
Rev200
ML 1.7 2020-09-23
18:34:01
37.749 14.996 1 2021-01-30
01:10:32
Sala Operativa INGV_OE (Catania) 83167421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-23 18:34:02 ± 0.1
Latitude 37.7515 ± 0.0063
Longitude 14.9925 ± 0.0091
Depth (km) 3 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86701231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 900
Semi-minor axis of confidence ellipse (meter) 550
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 301
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
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 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00899
Epicentral distance of station farthest from the epicenter (degree) 0.62413
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:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 83167421
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-23 18:49:00

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 86701231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-30 01:10:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IVPL.HHZ. 2020-09-23T18:34:16.55 0.3 undecidable manual P 359 69.2751 50 0.57 60
IV.NOV.HHZ. 2020-09-23T18:34:09.70 0.3 undecidable manual P 22 33.1446 96 0.15 70
IV.MUCR.HHZ. 2020-09-23T18:34:09.99 0.3 undecidable manual P 342 33.9438 95 0.28 68
IV.AIO.HHZ. 2020-09-23T18:34:09.74 0.3 undecidable manual P 41 32.2455 96 0.38 67
IV.EPOZ.HHN. 2020-09-23T18:34:07.14 0.3 undecidable manual P 117 19.3695 100 0.34 69
IV.ECHR.HHE. 2020-09-23T18:34:07.76 0.6 undecidable manual S 224 10.0788 108 1.22 33
IV.EPIT.HHN. 2020-09-23T18:34:06.79 0.6 undecidable manual S 40 8.6802 111 0.69 42
IV.EVRN.HHE. 2020-09-23T18:34:06.52 0.3 undecidable manual P 119 14.3745 103 0.7 62
IV.ESML.HHN. 2020-09-23T18:34:06.98 0.3 undecidable manual P 214 17.7711 100 0.47 68
IV.ECBD.HHN. 2020-09-23T18:34:06.49 0.6 undecidable manual S 69 8.88 110 0.35 47
IV.ESLN.HHN. 2020-09-23T18:34:05.36 0.3 undecidable manual S 194 6.5934 116 -0.08 75
IV.EPZF.HHZ. 2020-09-23T18:34:05.92 0.1 undecidable manual P 304 14.3745 103 0.1 98
IV.EMCN.HHZ. 2020-09-23T18:34:05.05 0.3 undecidable manual S 39 5.6943 120 -0.1 75
IV.ENIC.HHN. 2020-09-23T18:34:05.43 0.3 undecidable manual P 169 13.5753 104 -0.24 72
IV.ECHR.HHE. 2020-09-23T18:34:05.29 0.1 undecidable manual P 224 10.0788 108 0.3 95
IV.EMSG.HHZ. 2020-09-23T18:34:04.66 0.1 undecidable manual P 334 8.5803 111 -0.05 100
IV.ECBD.HHN. 2020-09-23T18:34:04.62 0.1 undecidable manual P 69 8.88 110 -0.14 98
IV.EPIT.HHN. 2020-09-23T18:34:04.62 0.1 undecidable manual P 40 8.6802 111 -0.12 99
IV.ESLN.HHN. 2020-09-23T18:34:03.98 0.1 undecidable manual P 194 6.5934 116 -0.38 94
IV.ECNE.HHN. 2020-09-23T18:34:03.63 0.6 undecidable manual S 28 1.6983 152 -0.53 46
IV.EMCN.HHZ. 2020-09-23T18:34:03.81 0.1 positive manual P 39 5.6943 120 -0.38 94
IV.ECPN.HHZ. 2020-09-23T18:34:03.42 0.3 undecidable manual S 212 0.999 163 -0.64 65
IV.ECNE.HHN. 2020-09-23T18:34:02.99 0.1 undecidable manual P 28 1.6983 152 -0.62 88
IV.ECPN.HHZ. 2020-09-23T18:34:02.84 0.1 undecidable manual P 212 0.999 163 -0.72 85
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ENIC.HNE. ML:1.9 0.001075 1.14 AML other m 2020-09-23T18:34:09.42
IV.ENIC.HNN. ML:2.0 0.001315 1.4 AML other m 2020-09-23T18:34:10.24
IV.EVRN.HNE. ML:1.9 0.0009559999999999999 0.34 AML other m 2020-09-23T18:34:11.61
IV.EVRN.HHN. ML:2.0 0.0012749999999999999 0.4 AML other m 2020-09-23T18:34:11.81
IV.EVRN.HNN. ML:1.9 0.000962 0.22 AML other m 2020-09-23T18:34:11.82
IV.ENIC.HHN. ML:1.9 0.00113 0.66 AML other m 2020-09-23T18:34:12.19
IV.EPZF.HHN. ML:1.8 0.0008105 0.5 AML other m 2020-09-23T18:34:12.00
IV.EVRN.HHE. ML:1.8 0.000865 0.96 AML other m 2020-09-23T18:34:12.89
IV.ENIC.HHE. ML:1.9 0.001045 0.2 AML other m 2020-09-23T18:34:13.03
IV.EPOZ.HHN. ML:1.7 0.00040800000000000005 0.5 AML other m 2020-09-23T18:34:14.61
IV.EPOZ.HHE. ML:1.5 0.00029049999999999996 0.66 AML other m 2020-09-23T18:34:14.55
IV.EPZF.HHE. ML:1.8 0.0007564999999999999 1.38 AML other m 2020-09-23T18:34:14.00
IV.ESML.HHE. ML:1.9 0.0007090000000000001 0.38 AML other m 2020-09-23T18:34:15.30
IV.ESML.HHN. ML:1.7 0.00047099999999999996 1.02 AML other m 2020-09-23T18:34:15.92
IV.MUCR.HHE. ML:1.3 0.00009085 1.2 AML other m 2020-09-23T18:34:18.34
IV.AIO.HHE. ML:1.3 0.0001025 0.54 AML other m 2020-09-23T18:34:19.37
IV.MUCR.HHN. ML:1.5 0.000131 0.66 AML other m 2020-09-23T18:34:19.52
IV.NOV.HHN. ML:1.8 0.00029099999999999997 1.32 AML other m 2020-09-23T18:34:20.00
IV.AIO.HHN. ML:1.3 0.0000948 1.68 AML other m 2020-09-23T18:34:21.08
IV.NOV.HHE. ML:2.0 0.0004325 1.4 AML other m 2020-09-23T18:34:21.23
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