INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.7 on date 09-10-2018 and time 10:01:54 (Italy) in region 2 km N Floresta (ME)

A magnitude ML 1.7 earthquake occured in region: 2 km N Floresta (ME), on

  • 09-10-2018 08:01:54 (UTC)
  • 09-10-2018 10:01:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38, 14.91 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Floresta ME 2 485 485
Ucria ME 5 1058 1543
Raccuja ME 6 1041 2584
San Piero Patti ME 8 2915 5499
Tortorici ME 8 6435 11934
Montalbano Elicona ME 10 2287 14221
Sinagra ME 10 2705 16926
Santa Domenica Vittoria ME 11 980 17906
Librizzi ME 12 1660 19566
Roccella Valdemone ME 12 666 20232
Galati Mamertino ME 12 2627 22859
Sant'Angelo di Brolo ME 13 3090 25949
Castell'Umberto ME 13 3128 29077
San Salvatore di Fitalia ME 14 1319 30396
Longi ME 14 1473 31869
Ficarra ME 14 1469 33338
Randazzo CT 14 10900 44238
Montagnareale ME 15 1615 45853
Basicò ME 15 612 46465
Malvagna ME 16 733 47198
Frazzanò ME 16 711 47909
Patti ME 16 13431 61340
Mirto ME 16 974 62314
Naso ME 17 3813 66127
Moio Alcantara ME 17 717 66844
Maniace CT 18 3765 70609
Tripi ME 18 873 71482
Alcara li Fusi ME 18 1980 73462
Piraino ME 18 3962 77424
Brolo ME 19 5783 83207
Gioiosa Marea ME 19 7074 90281
Oliveri ME 19 2181 92462
Maletto CT 19 3920 96382
San Marco d'Alunzio ME 20 1996 98378
Novara di Sicilia ME 20 1337 99715

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NW of Acireale (52622 inhabitants)
58 Km N of Catania (314555 inhabitants)
61 Km W of Messina (238439 inhabitants)
66 Km W of Reggio di Calabria (183035 inhabitants)
93 Km NE of Caltanissetta (63360 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.7 2018-10-09
08:01:54
38 14.91 9 2018-10-09
08:08:16
Sala Sismica INGV-Roma 61762481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-10-09 08:01:54 ± 0.08
Latitude 38.00 ± 0.01
Longitude 14.91 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 61762481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 359
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 315
Circular confidence region, given by single value of horizontal uncertainty (meter) 650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.04766
Epicentral distance of station farthest from the epicenter (degree) 0.3957
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 61762481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-10-09 08:08:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MILZ.HHN. 2018-10-09T08:02:08.56 0.6 undecidable manual S 43 0.3714 50 -0.11 46
IV.MPNC.HHZ. 2018-10-09T08:02:08.84 0.3 undecidable manual S 68 0.3795 50 -0.09 69
IV.GALF.HHZ. 2018-10-09T08:02:03.54 0.3 undecidable manual P 223 0.3957 50 0.34 65
IV.MPNC.HHZ. 2018-10-09T08:02:02.96 0.3 positive manual P 68 0.3795 50 0.04 70
IV.MNO.SHZ. 2018-10-09T08:02:02.77 0.6 undecidable manual S 247 0.1808 114 0.46 44
IV.NOV.HHZ. 2018-10-09T08:02:02.69 0.3 undecidable manual S 82 0.1835 113 0.29 69
IV.MILZ.HHN. 2018-10-09T08:02:02.74 0.1 undecidable manual P 43 0.3714 50 -0.03 94
IV.EPZF.HHZ. 2018-10-09T08:02:02.11 0.3 undecidable manual S 192 0.1826 113 -0.25 70
IV.EMCN.HNN. 2018-10-09T08:02:00.50 0.1 undecidable manual P 154 0.2338 109 0.31 91
IV.EPZF.HHZ. 2018-10-09T08:01:58.80 0.3 negative manual P 192 0.1826 113 -0.32 69
IV.MNO.SHZ. 2018-10-09T08:01:58.86 0.1 positive manual P 247 0.1808 114 -0.24 93
IV.MUCR.HHZ. 2018-10-09T08:01:58.28 0.6 undecidable manual S 328 0.0477 149 0.02 50
IV.NOV.HHZ. 2018-10-09T08:01:58.94 0.1 positive manual P 82 0.1835 113 -0.21 94
IV.MUCR.HHZ. 2018-10-09T08:01:56.77 0.1 negative manual P 328 0.0477 149 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHE. ML:1.5 0.000587 0.54 AML other m 2018-10-09T08:01:58.56
IV.MUCR.HHN. ML:1.4 0.0005245 1.06 AML other m 2018-10-09T08:01:59.58
IV.MNO.SHN. ML:0 0.000295 1.2 AML other m 2018-10-09T08:02:03.74
IV.MNO.SHE. ML:0 0.000335 0.52 AML other m 2018-10-09T08:02:03.78
IV.NOV.HHN. ML:2 0.0007115 1.5 AML other m 2018-10-09T08:02:04.17
IV.NOV.HHE. ML:1.9 0.000685 0.24 AML other m 2018-10-09T08:02:04.52
IV.EPZF.HHE. ML:1.6 0.00029 0.34 AML other m 2018-10-09T08:02:04.42
IV.EPZF.HHN. ML:1.8 0.000472 1.6 AML other m 2018-10-09T08:02:04.98
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download