INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.8 on date 08-02-2019 and time 11:55:43 (Italy) in region 3 km E Troina (EN)

A magnitude ML 1.8 earthquake occured in region: 3 km E Troina (EN), on

  • 08-02-2019 10:55:43 (UTC)
  • 08-02-2019 11:55:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.78, 14.64 at 32 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
Troina EN 3 9373 9373
San Teodoro ME 9 1403 10776
Cesarò ME 10 2439 13215
Gagliano Castelferrato EN 12 3593 16808
Cerami EN 12 2006 18814
Regalbuto EN 14 7277 26091
Capizzi ME 16 3176 29267
Agira EN 17 8345 37612
Bronte CT 17 19172 56784
Maniace CT 18 3765 60549
Centuripe EN 20 5470 66019

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km NW of Catania (314555 inhabitants)
50 Km W of Acireale (52622 inhabitants)
60 Km NE of Caltanissetta (63360 inhabitants)
86 Km NE of Gela (75827 inhabitants)
93 Km N of Vittoria (63339 inhabitants)
93 Km SW of Messina (238439 inhabitants)
95 Km N of Ragusa (73313 inhabitants)
96 Km W of Reggio di Calabria (183035 inhabitants)
99 Km NW of Siracusa (122291 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 1.8 2019-02-08
10:55:43
37.78 14.64 32 2019-02-08
11:18:27
Sala Sismica INGV-Roma 65328051
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-08 10:55:43 ± 0.24
Latitude 37.78 ± 0.01
Longitude 14.64 ± 0.01
Depth (km) 32 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65328051

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1134
Semi-minor axis of confidence ellipse (meter) 229
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 1130
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.41
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.67809
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 14
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 65328051
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-08 11:18:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EPZF.HHZ. 2019-02-08T10:56:22.06 1.0 undecidable manual S 76 0.1799 145 2.78 0
IV.EMSG.HHZ. 2019-02-08T10:56:17.36 3.0 undecidable manual P 0.2509 2.697 0
IV.ESLN.HHZ. 2019-02-08T10:56:15.83 3.0 undecidable manual P 0.2815 2.506 0
IV.MILZ.HHE. 2019-02-08T10:56:08.58 1.0 undecidable manual S 44 0.6781 108 1.9 10
IV.HAGA.HHZ. 2019-02-08T10:56:05.59 0.6 undecidable manual S 140 0.6439 109 -0.12 48
IV.AIO.HHZ. 2019-02-08T10:56:03.47 1.0 undecidable manual S 68 0.5081 114 1.5 14
IV.HLNI.HHZ. 2019-02-08T10:56:01.33 0.3 undecidable manual S 157 0.4703 116 0.36 70
IV.MUCR.HHZ. 2019-02-08T10:55:56.70 0.3 undecidable manual S 36 0.322 127 -0.52 69
IV.MILZ.HHE. 2019-02-08T10:55:56.24 0.3 undecidable manual P 44 0.6781 108 -0.53 64
IV.HAGA.HHZ. 2019-02-08T10:55:55.87 0.3 undecidable manual P 140 0.6439 109 -0.34 68
IV.NOV.HHE. 2019-02-08T10:55:54.44 0.3 undecidable manual P 58 0.4658 117 1.04 55
IV.AIO.HHZ. 2019-02-08T10:55:54.36 0.3 undecidable manual P 68 0.5081 114 0.31 71
IV.GALF.HHZ. 2019-02-08T10:55:53.10 0.6 undecidable manual S 218 0.089 161 0.07 54
IV.EPOZ.HHE. 2019-02-08T10:55:53.17 0.3 undecidable manual P 104 0.4497 118 0.01 76
IV.HLNI.HHZ. 2019-02-08T10:55:53.08 0.6 undecidable manual P 157 0.4703 116 -0.4 47
IV.PLLN.EHE. 2019-02-08T10:55:53.16 0.6 undecidable manual P 299 0.4425 118 0.11 50
IV.CSLB.HHE. 2019-02-08T10:55:53.58 0.1 undecidable manual P 289 0.482 116 -0.08 100
IV.PETRA.HHE. 2019-02-08T10:55:52.88 0.3 undecidable manual P 277 0.4146 120 0.25 73
IV.MUCR.HHZ. 2019-02-08T10:55:51.10 0.3 undecidable manual P 36 0.322 127 -0.21 75
IV.CAGR.HHZ. 2019-02-08T10:55:50.25 0.3 undecidable manual P 214 0.1916 143 0.53 71
IV.ESML.HHZ. 2019-02-08T10:55:49.26 0.6 undecidable manual P 130 0.2518 135 -1.14 36
IV.EPZF.HHZ. 2019-02-08T10:55:49.81 0.6 undecidable manual P 76 0.1799 145 0.21 51
IV.GALF.HHZ. 2019-02-08T10:55:48.29 0.3 undecidable manual P 218 0.089 161 -0.6 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHE. ML:2.1 0.00053648785 1.024 AML other m 2019-02-08T10:55:50.28
IV.EPZF.HHN. ML:2.2 0.0005958911 1.3568 AML other m 2019-02-08T10:55:53.29
IV.GALF.HHE. ML:1.7 0.00024865475 0.32 AML other m 2019-02-08T10:55:53.91
IV.GALF.HHN. ML:1.9 0.00035255595 0.3392 AML other m 2019-02-08T10:55:55.82
IV.GALF.HNE. ML:1.4 0.0001102743 0.7168 AML other m 2019-02-08T10:56:01.85
IV.GALF.HNN. ML:1.4 0.0001209965 0.448 AML other m 2019-02-08T10:55:55.33
IV.MUCR.HHE. ML:1.8 0.0001850692 0.4224 AML other m 2019-02-08T10:55:57.23
IV.MUCR.HHN. ML:1.6 0.0001164593 0.4032 AML other m 2019-02-08T10:55:57.25
IV.HLNI.HHE. ML:1.8 0.0001212002 0.1216 AML other m 2019-02-08T10:56:01.87
IV.HLNI.HHN. ML:1.6 8.480027E-5 0.1792 AML other m 2019-02-08T10:56:03.48
IV.AIO.HHE. ML:1.6 8.0387665E-5 0.3776 AML other m 2019-02-08T10:56:03.65
IV.AIO.HHN. ML:1.8 0.0001347913 0.4352 AML other m 2019-02-08T10:56:04.26
IV.HAGA.HHE. ML:2.1 0.00019897065 0.3008 AML other m 2019-02-08T10:56:06.10
IV.HAGA.HHN. ML:1.9 0.000107574385 0.2624 AML other m 2019-02-08T10:56:06.54
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