Earthquake with magnitude of ML 0.7 on date 14-09-2021 and time 17:52:14 (Italy) in region Confine Italia Francia (FRANCIA)

A magnitude ML 0.7 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 14-09-2021 15:52:14 (UTC)
  • 14-09-2021 17:52:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.134, 7.562 at 8 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
Limone Piemonte CN 8 1485 1485
Vernante CN 13 1178 2663
Briga Alta CN 16 39 2702
Roaschia CN 17 107 2809
Entracque CN 18 774 3583
Robilante CN 18 2306 5889

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km S of Cuneo (56081 inhabitants)
39 Km NW of Sanremo (54807 inhabitants)
76 Km W of Savona (61345 inhabitants)
97 Km S of Moncalieri (57294 inhabitants)
99 Km SW of Asti (76202 inhabitants)
Recent and historical seismicity
Seismic hazard
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 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 ( 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
ML 0.7 2021-09-14
44.1343 7.5618 8 2021-09-14
Sala Sismica INGV-Roma 95425441
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2021-09-14 15:52:14 ± 0.1
Latitude 44.1343 ± 0.0036
Longitude 7.5618 ± 0.0050
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95425441


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 468
Semi-minor axis of confidence ellipse (meter) 187
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 470
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32645
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitude information


Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 95425441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-14 16:00:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TREG.EHZ. 2021-09-14T15:52:49.97 3.0 undecidable manual Pn 0.05 0
IV.CAPR.HNZ. 2021-09-14T15:52:40.59 3.0 undecidable manual Pn -0.15 0
IV.RORO.HHZ. 2021-09-14T15:52:25.62 3.0 undecidable manual S 0
GU.GBOS.HHZ. 2021-09-14T15:52:23.38 0.3 undecidable manual S 62 0.2266 108 -0.11 73
GU.STV.HHZ. 2021-09-14T15:52:22.27 0.3 undecidable manual S 303 0.2014 110 -0.33 70
GU.IMI.HHZ. 2021-09-14T15:52:21.57 0.3 undecidable manual P 133 0.3265 50 -0.1 72
FR.SAOF.HHE.00 2021-09-14T15:52:20.65 0.3 undecidable manual S 182 0.1484 117 -0.06 75
GU.ENR.HHZ. 2021-09-14T15:52:20.41 0.3 undecidable manual S 313 0.1403 118 -0.01 76
IV.RORO.HHZ. 2021-09-14T15:52:20.81 3.0 undecidable manual P 0
GU.GBOS.HHZ. 2021-09-14T15:52:19.70 0.3 undecidable manual P 62 0.2266 108 0.09 73
GU.STV.HHZ. 2021-09-14T15:52:19.24 0.1 undecidable manual P 303 0.2014 110 0.14 97
FR.SAOF.HHE.00 2021-09-14T15:52:18.05 0.1 undecidable manual P 182 0.1484 117 0.05 100
GU.ENR.HHZ. 2021-09-14T15:52:18.10 0.3 undecidable manual P 313 0.1403 118 0.26 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:0.5 2.125E-5 1.18 AML other m 2021-09-14T15:52:19.32
GU.ENR.HHN. ML:0.7 5.045E-5 1.22 AML other m 2021-09-14T15:52:23.04
GU.ENR.HHE. ML:0.8 5.435E-5 0.68 AML other m 2021-09-14T15:52:23.53
GU.GBOS.HHN. ML:0.6 2.565E-5 0.62 AML other m 2021-09-14T15:52:24.41
GU.MGRO.HHN. ML:1 6.805E-5 0.86 AML other m 2021-09-14T15:52:25.00
GU.MGRO.HHE. ML:1 6.97E-5 0.94 AML other m 2021-09-14T15:52:25.75
GU.GBOS.HHE. ML:0.6 2.565E-5 1.3 AML other m 2021-09-14T15:52:26.94
GU.STV.HHN. ML:0.6 3.03E-5 1.14 AML other m 2021-09-14T15:52:27.86
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download