Earthquake with magnitude of ML 1.6 on date 03-02-2020 and time 18:22:04 (Italy) in region 9 km SE Troina (EN)

A magnitude ML 1.6 earthquake occured in region: 9 km SE Troina (EN), on

  • 03-02-2020 17:22:04 (UTC)
  • 03-02-2020 18:22:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.73, 14.67 at 22 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 9 9373 9373
Regalbuto EN 9 7277 16650
Gagliano Castelferrato EN 12 3593 20243
CesarĂ² ME 13 2439 22682
San Teodoro ME 13 1403 24085
Centuripe EN 14 5470 29555
Bronte CT 15 19172 48727
Agira EN 16 8345 57072
Adrano CT 16 36122 93194
Cerami EN 17 2006 95200
Catenanuova EN 18 4866 100066
Maniace CT 19 3765 103831

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Catania (314555 inhabitants)
45 Km W of Acireale (52622 inhabitants)
60 Km E of Caltanissetta (63360 inhabitants)
83 Km NE of Gela (75827 inhabitants)
88 Km N of Vittoria (63339 inhabitants)
90 Km N of Ragusa (73313 inhabitants)
93 Km NW of Siracusa (122291 inhabitants)
93 Km SW of Messina (238439 inhabitants)
95 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 1.6 2020-02-03
17:22:04
37.73 14.67 22 2020-02-03
17:38:44
Sala Sismica INGV-Roma 76170391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-03 17:22:04 ± 0.22
Latitude 37.73 ± 0.01
Longitude 14.67 ± 0.02
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76170391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1482
Semi-minor axis of confidence ellipse (meter) 793
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 1480
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.527
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0
Num. used stations 2
Type of magnitude ML
Reference to an origin 76170391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-03 17:38:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TDS.HHZ. 2020-02-03T17:23:19.96 3.0 undecidable manual Sg 9.27 0
IV.RM33.EHZ. 2020-02-03T17:23:02.80 3.0 positive manual Pn -2.64 0
IV.CSLB.HHE. 2020-02-03T17:22:23.86 0.6 undecidable manual S 293 0.527 104 0.44 45
IV.IST3.HHZ. 2020-02-03T17:22:21.39 3.0 negative manual Pn 0.16 0
IV.HLNI.HHZ. 2020-02-03T17:22:20.80 0.6 undecidable manual S 158 0.4155 108 0.56 46
IV.MUCR.HHZ. 2020-02-03T17:22:18.61 0.6 undecidable manual S 27 0.3471 113 0.28 50
IV.MSFR.HHE. 2020-02-03T17:22:17.75 0.6 undecidable manual S 348 0.3067 116 0.5 47
IV.AIO.HHE. 2020-02-03T17:22:15.40 1.0 undecidable manual P 62 0.5009 105 0.21 24
IV.CSLB.HHE. 2020-02-03T17:22:15.60 0.1 undecidable manual P 293 0.527 104 -0.02 100
IV.HLNI.HHZ. 2020-02-03T17:22:13.58 0.3 undecidable manual P 158 0.4155 108 -0.21 74
IV.GALF.HHZ. 2020-02-03T17:22:12.47 0.3 undecidable manual S 255 0.0881 153 0.01 82
IV.MUCR.HHZ. 2020-02-03T17:22:12.39 0.3 undecidable manual P 27 0.3471 113 -0.29 74
IV.MSFR.HHE. 2020-02-03T17:22:11.46 0.6 undecidable manual P 348 0.3067 116 -0.6 46
IV.CAGR.HHE. 2020-02-03T17:22:10.53 0.6 undecidable manual P 231 0.1772 133 0.31 50
IV.GALF.HHZ. 2020-02-03T17:22:08.56 0.6 undecidable manual P 255 0.0881 153 -0.73 45
IV.RESU.HHZ. 2020-02-03T17:22:02.05 3.0 undecidable manual P -0.29 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.6 0.000255 0.46 AML other m 2020-02-03T17:22:15.73
IV.GALF.HHN. ML:1.6 0.000234 0.78 AML other m 2020-02-03T17:22:16.99
IV.IST3.HHE. ML:3.1 0.000879 0.76 AML other m 2020-02-03T17:22:22.99
IV.IST3.HHN. ML:3.2 0.001115 0.4 AML other m 2020-02-03T17:22:25.23
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