Earthquake with magnitude of ML 1.3 on date 26-11-2020 and time 14:11:48 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 1.3 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 26-11-2020 13:11:48 (UTC)
  • 26-11-2020 14:11:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.04, 7.63 at 10 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
Briga Alta CN 11 39 39
Triora IM 12 355 394
Pigna IM 12 859 1253
Molini di Triora IM 13 617 1870
Castel Vittorio IM 13 287 2157
Mendatica IM 14 185 2342
Montegrosso Pian Latte IM 15 118 2460
Cosio d'Arroscia IM 16 221 2681
Bajardo IM 17 312 2993
Rocchetta Nervina IM 17 298 3291
Isolabona IM 18 679 3970
Apricale IM 18 629 4599
Limone Piemonte CN 19 1485 6084
Pornassio IM 19 685 6769
Rezzo IM 19 366 7135
Perinaldo IM 20 870 8005
Airole IM 20 407 8412

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Sanremo (54807 inhabitants)
40 Km S of Cuneo (56081 inhabitants)
74 Km W of Savona (61345 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 1.3 2020-11-26
13:11:48
44.04 7.63 10 2020-11-26
13:22:42
Sala Sismica INGV-Roma 85032181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-26 13:11:48 ± 0.21
Latitude 44.04 ± 0.04
Longitude 7.63 ± 0.02
Depth (km) 10 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85032181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4500
Semi-minor axis of confidence ellipse (meter) 909
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 4500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.08004
Epicentral distance of station farthest from the epicenter (degree) 0.82108
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 85032181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-26 13:22:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.PCP.HHZ. 2020-11-26T13:12:05.16 0.3 undecidable manual P 52 0.8211 50 0.89 69
GU.PZZ.HHZ. 2020-11-26T13:12:01.43 0.3 undecidable manual P 322 0.5954 50 1.04 67
GU.RORO.HHZ. 2020-11-26T13:12:00.51 0.6 undecidable manual S 77 0.3184 50 -0.28 63
GU.STV.HHZ. 2020-11-26T13:11:59.86 0.3 undecidable manual S 313 0.3004 50 -0.41 92
GU.GBOS.HHZ. 2020-11-26T13:11:58.24 0.3 undecidable manual S 36 0.2491 50 -0.5 91
GU.ENR.HHZ. 2020-11-26T13:11:58.32 0.3 undecidable manual S 321 0.2401 50 -0.16 98
GU.CANO.HHZ. 2020-11-26T13:11:58.41 0.3 undecidable manual P 69 0.4632 50 0.26 92
GU.RORO.HHZ. 2020-11-26T13:11:55.45 0.3 undecidable manual P 77 0.3184 50 -0.21 95
GU.STV.HHZ. 2020-11-26T13:11:55.49 0.3 undecidable manual P 313 0.3004 50 0.13 97
GU.ENR.HHZ. 2020-11-26T13:11:54.49 0.3 undecidable manual P 321 0.2401 50 0.16 98
GU.GBOS.HHZ. 2020-11-26T13:11:54.43 0.3 undecidable manual P 36 0.2491 50 -0.05 100
FR.SAOF.HHZ.00 2020-11-26T13:11:53.42 1.0 undecidable manual S 227 0.08 138 0.13 34
FR.SAOF.HHZ.00 2020-11-26T13:11:50.85 0.3 undecidable manual P 227 0.08 138 -0.48 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
FR.SAOF.HHE.00 ML:1.6 0.0005505 0.76 AML other m 2020-11-26T13:11:53.91
FR.SAOF.HHN.00 ML:1.7 0.0007275 0.46 AML other m 2020-11-26T13:11:54.59
GU.GBOS.HHE. ML:1.3 0.000105 0.42 AML other m 2020-11-26T13:11:58.36
GU.ENR.HHE. ML:1.2 9.475E-5 0.46 AML other m 2020-11-26T13:11:58.61
GU.GBOS.HHN. ML:1.1 6.95E-5 0.42 AML other m 2020-11-26T13:11:58.56
GU.ENR.HHN. ML:1.2 8.975E-5 1.2 AML other m 2020-11-26T13:11:58.98
GU.STV.HHN. ML:1.2 5.77E-5 0.72 AML other m 2020-11-26T13:12:00.39
GU.STV.HHE. ML:1.2 7.345E-5 0.22 AML other m 2020-11-26T13:12:00.78
GU.RORO.HHN. ML:1.3 7.5015055E-5 0.1216 AML other m 2020-11-26T13:12:01.08
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