Earthquake with magnitude of ML 1.3 on date 17-02-2020 and time 03:59:16 (Italy) in region 10 km SE Troina (EN)

A magnitude ML 1.3 earthquake occured in region: 10 km SE Troina (EN), on

  • 17-02-2020 02:59:16 (UTC)
  • 17-02-2020 03:59:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.74, 14.69 at 8 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 10 9373 9373
Regalbuto EN 10 7277 16650
CesarĂ² ME 12 2439 19089
San Teodoro ME 13 1403 20492
Centuripe EN 13 5470 25962
Bronte CT 14 19172 45134
Gagliano Castelferrato EN 14 3593 48727
Adrano CT 15 36122 84849
Agira EN 17 8345 93194
Maniace CT 17 3765 96959
Catenanuova EN 19 4866 101825
Maletto CT 19 3920 105745
Cerami EN 19 2006 107751
Biancavilla CT 19 24007 131758

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of Catania (314555 inhabitants)
44 Km W of Acireale (52622 inhabitants)
62 Km E of Caltanissetta (63360 inhabitants)
84 Km NE of Gela (75827 inhabitants)
88 Km N of Vittoria (63339 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
91 Km SW of Messina (238439 inhabitants)
92 Km NW of Siracusa (122291 inhabitants)
93 Km W of Reggio di Calabria (183035 inhabitants)
98 Km N of Modica (54633 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 1.3 2020-02-17
02:59:16
37.74 14.69 8 2020-02-17
03:07:43
Sala Sismica INGV-Roma 76583551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-17 02:59:16 ± 0.3
Latitude 37.74 ± 0.01
Longitude 14.69 ± 0.03
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76583551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2098
Semi-minor axis of confidence ellipse (meter) 1020
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 2100
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
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) 0.10432
Epicentral distance of station farthest from the epicenter (degree) 0.57647
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 76583551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-17 03:07:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RAFF.HHZ. 2020-02-17T02:59:36.72 0.6 undecidable manual S 207 0.5765 50 0.41 46
IV.HLNI.HHZ. 2020-02-17T02:59:31.94 0.3 undecidable manual S 160 0.4119 50 0.5 70
IV.MUCR.HHZ. 2020-02-17T02:59:29.70 0.3 undecidable manual S 25 0.3381 50 0.43 72
IV.RAFF.HHZ. 2020-02-17T02:59:27.39 0.1 undecidable manual P 207 0.5765 50 -0.41 92
IV.PETRA.HHE. 2020-02-17T02:59:25.76 0.3 undecidable manual P 282 0.4676 50 -0.19 74
IV.HLNI.HHZ. 2020-02-17T02:59:24.56 0.1 undecidable manual P 160 0.4119 50 -0.42 95
IV.MUCR.HHZ. 2020-02-17T02:59:23.48 0.1 undecidable manual P 25 0.3381 50 -0.25 100
IV.GALF.HHZ. 2020-02-17T02:59:21.14 0.3 undecidable manual S 256 0.1043 126 0.05 82
IV.GALF.HHZ. 2020-02-17T02:59:19.55 0.6 negative manual P 256 0.1043 126 0.55 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.3 0.0002455 0.74 AML other m 2020-02-17T02:59:23.87
IV.GALF.HHN. ML:1.4 0.0002935 0.62 AML other m 2020-02-17T02:59:26.46
IV.MUCR.HHE. ML:1.1 5.2E-5 0.24 AML other m 2020-02-17T02:59:30.22
IV.MUCR.HHN. ML:1.2 6.205E-5 0.84 AML other m 2020-02-17T02:59:31.55
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