Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 20-09-2019 and time 05:41:34 (Italy) in region 7 km W Milo (CT)

A magnitude ML 1.6 earthquake occured in region: 7 km W Milo (CT), on

  • 20-09-2019 03:41:34 (UTC)
  • 20-09-2019 05:41:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7380, 15.0370 at 0 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 7 1087 1087
Zafferana Etnea CT 8 9517 10604
Sant'Alfio CT 10 1582 12186
Santa Venerina CT 11 8592 20778
Giarre CT 13 27659 48437
Pedara CT 14 14102 62539
Nicolosi CT 14 7463 70002
Trecastagni CT 14 10910 80912
Mascali CT 14 14282 95194
Ragalna CT 15 3924 99118
Riposto CT 15 14838 113956
Piedimonte Etneo CT 15 3963 117919
Linguaglossa CT 15 5403 123322
Viagrande CT 15 8563 131885
Fiumefreddo di Sicilia CT 16 9623 141508
Aci Sant'Antonio CT 17 17984 159492
Aci Bonaccorsi CT 17 3524 163016
Belpasso CT 17 28108 191124
Aci Catena CT 18 29851 220975
Randazzo CT 18 10900 231875
Castiglione di Sicilia CT 18 3215 235090
Moio Alcantara ME 18 717 235807
Acireale CT 18 52622 288429
Biancavilla CT 18 24007 312436
Maletto CT 18 3920 316356
Tremestieri Etneo CT 18 20589 336945
Mascalucia CT 18 31958 368903
San Pietro Clarenza CT 18 7743 376646
San Giovanni la Punta CT 19 23060 399706
Bronte CT 19 19172 418878
Santa Maria di Licodia CT 19 7641 426519
Camporotondo Etneo CT 19 5023 431542
Valverde CT 19 7840 439382
Calatabiano CT 19 5308 444690
Gravina di Catania CT 20 25838 470528
Adrano CT 20 36122 506650

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NW of Acireale (52622 inhabitants)
26 Km N of Catania (314555 inhabitants)
67 Km SW of Reggio di Calabria (183035 inhabitants)
68 Km SW of Messina (238439 inhabitants)
79 Km N of Siracusa (122291 inhabitants)
90 Km E of Caltanissetta (63360 inhabitants)
94 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 1.6 2019-09-20
03:41:34		 37.738 15.0372 0 2020-02-28
16:42:00		 Bollettino Sismico Italiano INGV 73550411
Reviewed
Rev100 		ML 1.8 2019-09-20
03:41:32		 37.7095 15.1062 2 2019-09-20
04:10:24		 Sala Sismica INGV-Roma 72576611
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-20 03:41:34 ± 0.14
Latitude 37.7380 ± 0.0054
Longitude 15.0372 ± 0.0091
Depth (km) 0 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73550411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 900
Semi-minor axis of confidence ellipse (meter) 440
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 122
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) 154
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 24
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 73550411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-31 11:22:02

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 18
Type of magnitude ML
Reference to an origin 72576611
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-20 04:10:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GALF.HHZ. 2019-09-20T03:41:48.40 1.0 undecidable manual S 266 41.4252 90 -0.16 24
IV.NOV.HHZ. 2019-09-20T03:41:46.00 0.6 undecidable manual S 15 33.3444 90 0.25 49
IV.AIO.HHZ. 2019-09-20T03:41:45.00 0.6 undecidable manual S 33 31.0467 90 0.04 51
IV.HLNI.HHZ. 2019-09-20T03:41:43.87 0.6 undecidable manual P 199 45.621 90 0.55 44
IV.MNO.SHZ. 2019-09-20T03:41:42.52 1.0 undecidable manual P 306 36.8298 90 0.95 19
IV.GALF.HHZ. 2019-09-20T03:41:42.74 0.6 undecidable manual P 266 41.4252 90 0.26 48
IV.MUCR.HHZ. 2019-09-20T03:41:41.09 0.6 undecidable manual P 337 36.741 90 -0.46 46
IV.EPZF.HHZ. 2019-09-20T03:41:41.50 0.6 undecidable manual S 301 18.4704 91 0.91 40
IV.AIO.HHZ. 2019-09-20T03:41:40.61 0.6 undecidable manual P 33 31.0467 90 0.2 49
IV.ECTS.EHZ. 2019-09-20T03:41:40.80 0.6 undecidable manual S 25 17.5713 91 0.51 47
IV.NOV.HHZ. 2019-09-20T03:41:40.79 0.3 undecidable manual P 15 33.3444 90 -0.07 76
IV.EVRN.HNZ. 2019-09-20T03:41:39.01 3.0 undecidable manual S 0
IV.ESML.HHZ. 2019-09-20T03:41:38.25 0.6 undecidable manual P 226 19.1697 91 0.22 50
IV.EMSG.HHZ. 2019-09-20T03:41:38.80 0.3 undecidable manual S 320 11.9769 91 0.46 72
IV.EPZF.HHZ. 2019-09-20T03:41:37.30 0.3 undecidable manual P 301 18.4704 91 -0.59 68
IV.ENIC.HNZ. 2019-09-20T03:41:37.22 1.0 undecidable manual P 187 11.877 91 0.65 23
IV.ECTS.EHZ. 2019-09-20T03:41:37.64 0.3 undecidable manual P 25 17.5713 91 -0.07 78
IV.EPIT.HHE. 2019-09-20T03:41:37.50 0.6 undecidable manual S 12 8.2806 91 0.43 49
IV.EMCN.HNZ. 2019-09-20T03:41:36.10 0.3 undecidable manual S 357 5.8941 92 -0.14 78
IV.EMSG.HHZ. 2019-09-20T03:41:36.03 0.1 positive manual P 320 11.9769 91 -0.56 93
IV.ECHR.HHZ. 2019-09-20T03:41:36.31 1.0 undecidable manual P 242 12.2766 91 -0.35 25
IV.ESLN.HHZ. 2019-09-20T03:41:36.90 0.3 undecidable manual S 228 7.3815 92 0.14 78
IV.EPIT.HHE. 2019-09-20T03:41:35.72 0.3 undecidable manual P 12 8.2806 91 -0.13 78
IV.ESLN.HHZ. 2019-09-20T03:41:35.35 0.1 positive manual P 228 7.3815 92 -0.32 100
IV.EMCN.HNZ. 2019-09-20T03:41:34.97 0.1 positive manual P 357 5.8941 92 -0.4 98
IV.EVRN.HNZ. 2019-09-20T03:41:33.74 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ECTS.EHE. ML:0.0 0.0002163754 0.1984 AML other m 2019-09-20T03:41:41.71
IV.AIO.HHN. ML:0.0 0.00006980007499999999 0.4992 AML other m 2019-09-20T03:41:47.72
IV.ECTS.EHN. ML:0.0 0.00028614885000000003 0.28 AML other m 2019-09-20T03:41:42.14
IV.GALF.HHN. ML:0.0 0.00015276945 0.5808 AML other m 2019-09-20T03:41:52.69
IV.EPZF.HHE. ML:0.0 0.00064223975 0.3408 AML other m 2019-09-20T03:41:45.40
IV.EPZF.HHN. ML:0.0 0.0008947865999999999 0.4 AML other m 2019-09-20T03:41:45.92
IV.AIO.HHE. ML:0.0 0.000061446895 0.4992 AML other m 2019-09-20T03:41:47.29
IV.GALF.HNN. ML:1.6 0.00012702055500000002 1.4608 AML other m 2019-09-20T03:41:49.27
IV.NOV.HHN. ML:0.0 0.0001903354 0.4208 AML other m 2019-09-20T03:41:50.29
IV.NOV.HHE. ML:0.0 0.0002673874 0.32 AML other m 2019-09-20T03:41:51.17
IV.GALF.HNE. ML:0.0 0.000103372655 1.2112 AML other m 2019-09-20T03:41:55.93
IV.GALF.HHE. ML:0.0 0.00018429600000000003 0.5408 AML other m 2019-09-20T03:41:57.98
IV.EMCN.HNE. ML:0.0 0.007418611 0.1088 AML other m 2019-09-20T03:41:37.45
IV.EMCN.HNN. ML:0.0 0.0069473009999999995 0.16 AML other m 2019-09-20T03:41:37.88
IV.ESLN.HHN. ML:0.0 0.0005647781000000001 0.0608 AML other m 2019-09-20T03:41:37.77
IV.ESLN.HHE. ML:0.0 0.00102378895 0.1792 AML other m 2019-09-20T03:41:37.28
IV.EMSG.HHE. ML:0.0 0.0030785415 0.2 AML other m 2019-09-20T03:41:41.24
IV.EMSG.HHN. ML:0.0 0.0037621380000000004 0.2992 AML other m 2019-09-20T03:41:42.06
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