Earthquake with magnitude of ML 1.9 on date 17-10-2020 and time 05:19:10 (Italy) in region 6 km N Troina (EN)

A magnitude ML 1.9 earthquake occured in region: 6 km N Troina (EN), on

  • 17-10-2020 03:19:10 (UTC)
  • 17-10-2020 05:19:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.84, 14.6 at 37 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 6 9373 9373
San Teodoro ME 9 1403 10776
Cerami EN 9 2006 12782
CesarĂ² ME 10 2439 15221
Capizzi ME 11 3176 18397
Gagliano Castelferrato EN 15 3593 21990
Maniace CT 18 3765 25755
San Fratello ME 19 3707 29462

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km W of Acireale (52622 inhabitants)
57 Km NW of Catania (314555 inhabitants)
61 Km NE of Caltanissetta (63360 inhabitants)
91 Km NE of Gela (75827 inhabitants)
92 Km W of Messina (238439 inhabitants)
96 Km W of Reggio di Calabria (183035 inhabitants)
99 Km N of Vittoria (63339 inhabitants)
99 Km E of Bagheria (55387 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
Reviewed
Rev100
ML 1.9 2020-10-17
03:19:10
37.84 14.6 37 2020-10-17
03:29:19
Sala Sismica INGV-Roma 83834031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-17 03:19:10 ± 0.16
Latitude 37.84 ± 0.01
Longitude 14.60 ± 0.01
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83834031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1124
Semi-minor axis of confidence ellipse (meter) 914
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 138
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.77791
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 83834031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-17 03:29:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.USI.HHZ. 2020-10-17T03:19:55.61 3.0 undecidable manual Sg 3.14 0
IV.HCRL.HHZ. 2020-10-17T03:19:33.92 0.6 undecidable manual S 148 0.6529 54 0.39 43
IV.HLNI.HHZ. 2020-10-17T03:19:31.22 1.0 undecidable manual S 156 0.536 118 0.5 21
IV.PETRA.HHE. 2020-10-17T03:19:26.69 0.6 undecidable manual S 269 0.3849 128 -0.25 47
IV.SSY.HHZ. 2020-10-17T03:19:25.72 0.1 undecidable manual P 151 0.7779 54 0.16 88
IV.ESML.HHZ. 2020-10-17T03:19:25.39 0.6 undecidable manual S 135 0.3121 134 0.08 49
IV.MUCR.HHZ. 2020-10-17T03:19:24.90 1.0 undecidable manual S 47 0.295 136 -0.05 25
IV.RAFF.HHZ. 2020-10-17T03:19:23.71 0.1 undecidable manual P 197 0.6457 54 -0.02 92
IV.HCRL.HHZ. 2020-10-17T03:19:23.38 0.1 undecidable manual P 148 0.6529 54 -0.45 85
IV.GALF.HHZ. 2020-10-17T03:19:22.00 1.0 undecidable manual S 192 0.1322 157 -0.24 25
IV.HLNI.HHZ. 2020-10-17T03:19:21.69 0.1 undecidable manual P 156 0.536 118 -0.52 86
IV.PETRA.HHE. 2020-10-17T03:19:20.26 0.1 undecidable manual P 269 0.3849 128 0.23 94
IV.ESML.HHZ. 2020-10-17T03:19:19.63 0.1 undecidable manual P 135 0.3121 134 0.54 87
IV.CAGR.HHE. 2020-10-17T03:19:18.46 0.1 undecidable manual P 200 0.2329 143 0.28 95
IV.MUCR.HHZ. 2020-10-17T03:19:18.78 0.1 undecidable manual P 47 0.295 136 -0.1 100
IV.GALF.HHZ. 2020-10-17T03:19:16.91 0.3 undecidable manual P 192 0.1322 157 -0.4 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:2.3 0.00065 1.38 AML other m 2020-10-17T03:19:22.91
IV.GALF.HHN. ML:2 0.000341 0.58 AML other m 2020-10-17T03:19:23.32
IV.HCRL.HHN. ML:1.9 0.000106 0.42 AML other m 2020-10-17T03:19:25.46
IV.MUCR.HHE. ML:1.6 0.0001013 0.36 AML other m 2020-10-17T03:19:27.51
IV.HLNI.HHN. ML:1.7 8.54E-5 0.98 AML other m 2020-10-17T03:19:32.82
IV.HLNI.HHE. ML:1.6 7.11E-5 1.3 AML other m 2020-10-17T03:19:34.80
IV.SSY.HHE. ML:2.6 0.000412 0.3 AML other m 2020-10-17T03:19:37.82
IV.MUCR.HHN. ML:1.6 0.0001025 0.76 AML other m 2020-10-17T03:19:38.14
IV.HCRL.HHE. ML:2 0.000122 0.52 AML other m 2020-10-17T03:19:40.42
IV.SSY.HHN. ML:2.8 0.000651 0.88 AML other m 2020-10-17T03:19:43.80
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