Earthquake with magnitude of ML 1.8 on date 17-11-2020 and time 01:02:51 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.8 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 17-11-2020 00:02:51 (UTC)
  • 17-11-2020 01:02:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 45.99, 7.51 at 11 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
Bionaz AO 15 236 236
Valtournenche AO 16 2277 2513
Oyace AO 19 219 2732
Chamois AO 19 97 2829

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 1.8 2020-11-17
00:02:51
45.99 7.51 11 2020-11-17
00:07:43
Sala Sismica INGV-Roma 84784541
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-17 00:02:51 ± 0.17
Latitude 45.99 ± 0.02
Longitude 7.51 ± 0.01
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84784541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1688
Semi-minor axis of confidence ellipse (meter) 864
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 343
Circular confidence region, given by single value of horizontal uncertainty (meter) 1690
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.86155
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:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 84784541
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-17 00:07:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
ST.CARE.EHZ. 2020-11-17T00:03:59.40 3.0 undecidable manual Sn 0.09 0
GU.RSP.HHZ. 2020-11-17T00:03:20.04 0.6 undecidable manual S 192 0.8616 50 0.25 42
GU.LSD.HHZ. 2020-11-17T00:03:10.95 0.6 undecidable manual S 206 0.5945 50 -0.92 35
GU.RSP.HHZ. 2020-11-17T00:03:08.49 0.3 undecidable manual P 192 0.8616 50 0.56 58
GU.TRAV.HHZ. 2020-11-17T00:03:08.75 0.6 undecidable manual S 161 0.5081 50 -0.55 42
GU.BLANC.HHE. 2020-11-17T00:03:07.04 0.6 undecidable manual S 250 0.4281 50 0.11 47
GU.CIRO.HHZ. 2020-11-17T00:03:05.22 0.6 undecidable manual S 174 0.393 50 -0.68 41
IV.MRGE.HHZ. 2020-11-17T00:03:04.78 0.6 undecidable manual S 235 0.3849 50 -0.87 38
GU.LSD.HHZ. 2020-11-17T00:03:03.61 0.1 undecidable manual P 206 0.5945 50 0.26 88
CH.MMK.HHE. 2020-11-17T00:03:03.27 0.6 undecidable manual S 80 0.3193 50 -0.45 45
GU.SATI.HHZ. 2020-11-17T00:03:02.00 0.3 undecidable manual S 115 0.2752 50 -0.4 68
GU.TRAV.HHZ. 2020-11-17T00:03:02.12 0.1 undecidable manual P 161 0.5081 50 0.25 90
GU.BLANC.HHE. 2020-11-17T00:03:01.20 0.3 undecidable manual P 250 0.4281 50 0.7 60
IV.MRGE.HHZ. 2020-11-17T00:02:59.83 0.1 undecidable manual P 235 0.3849 50 0.07 96
GU.CIRO.HHZ. 2020-11-17T00:02:59.99 0.1 positive manual P 174 0.393 50 0.08 95
GU.SATI.HHZ. 2020-11-17T00:02:58.18 0.1 negative manual P 115 0.2752 50 0.29 93
CH.MMK.HHE. 2020-11-17T00:02:58.88 0.1 undecidable manual P 80 0.3193 50 0.23 94
CH.DIX.HHZ. 2020-11-17T00:02:56.65 0.3 undecidable manual S 321 0.1124 131 -0.77 62
CH.DIX.HHZ. 2020-11-17T00:02:55.13 0.1 undecidable manual P 321 0.1124 131 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MRGE.HHN. ML:1.7 0.0001695 0.18 AML other m 2020-11-17T00:03:05.45
IV.MRGE.HHE. ML:1.8 0.0001825 1.44 AML other m 2020-11-17T00:03:05.23
GU.CIRO.HHN. ML:1.4 7.32E-5 0.44 AML other m 2020-11-17T00:03:07.29
GU.CIRO.HHE. ML:1.6 0.0001251 1.76 AML other m 2020-11-17T00:03:07.11
GU.TRAV.HHE. ML:2.1 0.000291 1.16 AML other m 2020-11-17T00:03:09.07
GU.TRAV.HHN. ML:2 0.0002195 1.26 AML other m 2020-11-17T00:03:09.77
GU.LSD.HHE. ML:1.7 0.0001 1.28 AML other m 2020-11-17T00:03:11.05
GU.LSD.HHN. ML:1.7 0.00010155 0.16 AML other m 2020-11-17T00:03:13.09
GU.RSP.HHE. ML:1.9 9.225E-5 1.34 AML other m 2020-11-17T00:03:20.26
GU.RSP.HHN. ML:1.9 7.845E-5 0.84 AML other m 2020-11-17T00:03:20.99
GU.RSP.HNE. ML:1.9 8.82E-5 0.56 AML other m 2020-11-17T00:03:23.64
GU.RSP.HNN. ML:1.8 7.335E-5 1.58 AML other m 2020-11-17T00:03:35.12
ST.CARE.EHN. ML:3.1 0.0002315 1.12 AML other m 2020-11-17T00:04:08.93
ST.CARE.EHE. ML:3.3 0.0003805 0.06 AML other m 2020-11-17T00:04:09.06
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