Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 25-11-2018 and time 18:43:54 (Italy) in region 11 km W Milo (CT)

A magnitude ML 1.7 earthquake occured in region: 11 km W Milo (CT), on

  • 25-11-2018 17:43:54 (UTC)
  • 25-11-2018 18:43:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.7610, 14.9970 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 11 1087 1087
Zafferana Etnea CT 12 9517 10604
Sant'Alfio CT 13 1582 12186
Maletto CT 14 3920 16106
Randazzo CT 14 10900 27006
Bronte CT 15 19172 46178
Santa Venerina CT 15 8592 54770
Ragalna CT 15 3924 58694
Linguaglossa CT 16 5403 64097
Moio Alcantara ME 16 717 64814
Nicolosi CT 17 7463 72277
Piedimonte Etneo CT 17 3963 76240
Giarre CT 17 27659 103899
Pedara CT 17 14102 118001
Biancavilla CT 17 24007 142008
Santa Domenica Vittoria ME 18 980 142988
Trecastagni CT 18 10910 153898
Mascali CT 18 14282 168180
Castiglione di Sicilia CT 18 3215 171395
Adrano CT 18 36122 207517
Malvagna ME 18 733 208250
Riposto CT 19 14838 223088
Santa Maria di Licodia CT 19 7641 230729
Belpasso CT 19 28108 258837
Viagrande CT 19 8563 267400
Fiumefreddo di Sicilia CT 19 9623 277023
Roccella Valdemone ME 19 666 277689
Francavilla di Sicilia ME 20 3945 281634

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NW of Acireale (52622 inhabitants)
30 Km N of Catania (314555 inhabitants)
69 Km SW of Reggio di Calabria (183035 inhabitants)
69 Km SW of Messina (238439 inhabitants)
82 Km NW of Siracusa (122291 inhabitants)
88 Km E of Caltanissetta (63360 inhabitants)
96 Km N of Ragusa (73313 inhabitants)
99 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 1.7 2018-11-25
17:43:54		 37.7613 14.9967 0 2019-06-04
09:16:12		 Bollettino Sismico Italiano INGV 67601921
Reviewed
Rev200 		ML 1.5 2018-11-25
17:43:53		 37.756 15.005 1 2019-04-15
10:03:13		 Sala Operativa INGV-OE (Catania) 63367821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-25 17:43:54 ± 0.11
Latitude 37.7613 ± 0.0063
Longitude 14.9967 ± 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 67601921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 890
Semi-minor axis of confidence ellipse (meter) 560
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 298
Circular confidence region, given by single value of horizontal uncertainty (meter) 890.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.04137
Epicentral distance of station farthest from the epicenter (degree) 0.28868
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 67601921
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-04-15 10:02:54

ML:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 63367821
Agency INGV
Autore Sala Operativa INGV-OE (Catania)
Time of creation (UTC) 2018-11-25 18:45:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NOV.HHZ. 2018-11-25T17:44:01.47 0.3 undecidable manual P 22 32.0457 90 0.13 70
IV.AIO.HHZ. 2018-11-25T17:44:01.28 0.3 undecidable manual P 42 31.1466 90 0.11 70
IV.ESML.HHZ. 2018-11-25T17:43:59.04 0.3 undecidable manual P 213 18.9699 90 0.32 69
IV.EPOZ.HHZ. 2018-11-25T17:43:59.20 0.3 undecidable manual P 120 19.5693 90 0.36 68
IV.ESLN.HHZ. 2018-11-25T17:43:57.73 0.6 undecidable manual S 195 7.7811 91 0.1 49
IV.EPZF.HHZ. 2018-11-25T17:43:57.83 0.1 undecidable manual P 300 14.0748 91 0.08 97
IV.ESLN.HHZ. 2018-11-25T17:43:56.01 0.1 positive manual P 195 7.7811 91 -0.48 90
IV.EMSG.HHZ. 2018-11-25T17:43:56.49 0.1 undecidable manual P 328 7.7811 91 0 100
IV.EMCN.HNZ. 2018-11-25T17:43:56.60 0.3 undecidable manual S 44 4.5954 92 0.06 74
IV.EMCN.HNZ. 2018-11-25T17:43:55.46 0.1 positive manual P 44 4.5954 92 -0.4 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:1.8 0.0009239999999999999 0.32 AML other m 2018-11-25T17:44:04.79
IV.EPZF.HHN. ML:2.0 0.0012 1.4 AML other m 2018-11-25T17:44:05.90
IV.ESML.HHE. ML:1.6 0.00038649999999999996 0.78 AML other m 2018-11-25T17:44:07.88
IV.ESML.HHN. ML:1.5 0.000268 0.4 AML other m 2018-11-25T17:44:10.29
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