Earthquake with magnitude of ML 1.3 on date 14-11-2021 and time 19:16:58 (UTC) in region 4 km S Troina (EN)

A magnitude ML 1.3 earthquake occured in region: 4 km S Troina (EN), on

  • 14-11-2021 19:16:58 (UTC)
  • 14-11-2021 20:16:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.752, 14.6 at 24 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 4 9373 9373
Gagliano Castelferrato EN 7 3593 12966
Cerami EN 11 2006 14972
Regalbuto EN 12 7277 22249
Agira EN 12 8345 30594
San Teodoro ME 14 1403 31997
CesarĂ² ME 14 2439 34436
Capizzi ME 15 3176 37612
Nissoria EN 17 3000 40612
Nicosia EN 18 13899 54511
Centuripe EN 19 5470 59981

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km NW of Catania (314555 inhabitants)
52 Km W of Acireale (52622 inhabitants)
55 Km NE of Caltanissetta (63360 inhabitants)
82 Km NE of Gela (75827 inhabitants)
89 Km N of Vittoria (63339 inhabitants)
93 Km N of Ragusa (73313 inhabitants)
97 Km SW of Messina (238439 inhabitants)
98 Km NW of Siracusa (122291 inhabitants)
100 Km N of Modica (54633 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.3 2021-11-14
19:16:58
37.752 14.5997 24 2021-11-14
19:28:14
Sala Sismica INGV-Roma 97466921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-14 19:16:58 ± 0.21
Latitude 37.7520 ± 0.0054
Longitude 14.5997 ± 0.0125
Depth (km) 24 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97466921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1082
Semi-minor axis of confidence ellipse (meter) 409
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.04856
Epicentral distance of station farthest from the epicenter (degree) 0.58096
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 97466921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-14 19:28:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RAFF.HHE. 2021-11-14T19:17:18.18 0.3 undecidable manual S 200 0.5612 105 0.44 72
IV.AIO.HHZ. 2021-11-14T19:17:18.93 3.0 undecidable manual S 66 0.5459 105 1.64 0
IV.HLNI.HHZ. 2021-11-14T19:17:14.94 0.3 undecidable manual S 152 0.4578 109 0.15 78
IV.MCPD.HHZ. 2021-11-14T19:17:13.12 0.3 undecidable manual S 16 0.3822 113 0.42 75
IV.MUCR.HHE. 2021-11-14T19:17:12.51 0.3 undecidable manual S 37 0.3624 114 0.34 77
IV.MSFR.HHZ. 2021-11-14T19:17:09.89 0.3 undecidable manual S 359 0.2815 121 -0.16 80
IV.GIB.HHE. 2021-11-14T19:17:09.38 1.0 undecidable manual P 298 0.5108 106 0.73 22
IV.AIO.HHZ. 2021-11-14T19:17:09.50 1.0 undecidable manual P 66 0.5459 105 0.28 25
IV.RAFF.HHE. 2021-11-14T19:17:09.51 0.6 undecidable manual P 200 0.5612 105 0.03 52
IV.HVZN.HHE. 2021-11-14T19:17:09.25 1.0 undecidable manual P 171 0.581 104 -0.54 23
IV.CSLB.HHE. 2021-11-14T19:17:07.89 1.0 undecidable manual P 294 0.4658 108 -0.02 26
IV.HLNI.HHZ. 2021-11-14T19:17:06.98 1.0 undecidable manual P 152 0.4578 109 -0.79 21
IV.MCPD.HHZ. 2021-11-14T19:17:06.41 0.6 undecidable manual P 16 0.3822 113 -0.16 52
IV.GALF.HHZ. 2021-11-14T19:17:05.95 0.3 undecidable manual S 212 0.0486 166 0.23 83
IV.MUCR.HHE. 2021-11-14T19:17:05.95 1.0 undecidable manual P 37 0.3624 114 -0.3 26
IV.MSFR.HHZ. 2021-11-14T19:17:04.76 0.3 undecidable manual P 359 0.2815 121 -0.28 78
IV.ESCV.HHZ. 2021-11-14T19:17:03.52 0.3 undecidable manual P 92 0.1709 137 -0.03 85
IV.GALF.HHZ. 2021-11-14T19:17:01.92 0.1 undecidable manual P 212 0.0486 166 -0.62 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:1.7 0.0003371811 0.2432 AML other m 2021-11-14T19:17:06.99
IV.GALF.HHN. ML:1.7 0.000341231 0.3968 AML other m 2021-11-14T19:17:06.56
IV.MCPD.HHE. ML:1.3 5.94E-5 0.36 AML other m 2021-11-14T19:17:13.68
IV.MCPD.HHN. ML:1.2 4.1456935E-5 0.3456 AML other m 2021-11-14T19:17:15.00
IV.HLNI.HHE. ML:1.1 2.9184021E-5 0.192 AML other m 2021-11-14T19:17:19.62
IV.HLNI.HHN. ML:1.1 3.13502255E-5 0.256 AML other m 2021-11-14T19:17:18.96
IV.ESCV.HHE. ML:1.4 0.0001220801 0.3456 AML other m 2021-11-14T19:17:10.83
IV.ESCV.HHN. ML:1.5 0.00014640675 0.2688 AML other m 2021-11-14T19:17:12.26
IV.MSFR.HHE. ML:0.8 2.74382455E-5 0.3712 AML other m 2021-11-14T19:17:12.08
IV.MSFR.HHN. ML:0.8 2.5339785E-5 0.256 AML other m 2021-11-14T19:17:11.20
IV.AIO.HHN. ML:1.4 4.291239E-5 0.3712 AML other m 2021-11-14T19:17:21.50
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download