Earthquake with magnitude of Md 1.4 on date 24-03-2020 and time 06:55:47 (Italy) in region 3 km E Sambuco (CN)

A magnitude Md 1.4 earthquake occured in region: 3 km E Sambuco (CN), on

  • 24-03-2020 05:55:47 (UTC)
  • 24-03-2020 06:55:47 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.34, 7.12 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
Sambuco CN 3 92 92
Vinadio CN 6 644 736
Pietraporzio CN 7 77 813
Aisone CN 9 248 1061
Castelmagno CN 11 66 1127
Argentera CN 12 83 1210
Canosio CN 13 80 1290
Marmora CN 14 68 1358
Demonte CN 15 2003 3361
Pradleves CN 16 250 3611
Prazzo CN 17 170 3781
Celle di Macra CN 17 100 3881
Acceglio CN 18 162 4043
Monterosso Grana CN 19 505 4548
Stroppo CN 19 103 4651
Macra CN 19 59 4710

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km W of Cuneo (56081 inhabitants)
79 Km NW of Sanremo (54807 inhabitants)
87 Km SW of Moncalieri (57294 inhabitants)
93 Km SW of Torino (890529 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
Md 1.4 2020-03-24
05:55:47
44.34 7.11 8 2020-03-24
06:04:09
Sala Sismica INGV-Roma 77523121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-24 05:55:47 ± 0.3
Latitude 44.34 ± 0.01
Longitude 7.11 ± 0.02
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 77523121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2217
Semi-minor axis of confidence ellipse (meter) 211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 2220
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 239
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.16907
Epicentral distance of station farthest from the epicenter (degree) 0.50812
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 4
Type of magnitude Md
Reference to an origin 77523121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-24 06:04:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.BHB.HHZ. 2020-03-24T05:56:05.36 0.6 undecidable manual S 12 0.5081 50 -0.02 48
GU.BHB.HHZ. 2020-03-24T05:55:57.78 0.3 negative manual P 12 0.5081 50 0.07 71
GU.ENR.HHZ. 2020-03-24T05:55:56.80 0.6 undecidable manual S 117 0.2455 107 -0.29 48
GU.PZZ.HHZ. 2020-03-24T05:55:54.45 0.6 undecidable manual S 0 0.1691 114 0.13 50
GU.STV.HHZ. 2020-03-24T05:55:54.88 0.6 undecidable manual S 121 0.1772 113 0.27 48
GU.ENR.HHZ. 2020-03-24T05:55:52.90 0.6 undecidable manual P 117 0.2455 107 -0.02 50
GU.PZZ.HHZ. 2020-03-24T05:55:51.19 0.1 positive manual P 0 0.1691 114 -0.13 100
GU.STV.HHZ. 2020-03-24T05:55:51.62 1.0 undecidable manual P 121 0.1772 113 0.13 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHZ. Md:1.5 13 END duration s
GU.STV.HHZ. Md:1.3 11 END duration s
GU.ENR.HHZ. Md:1.3 10 END duration s
GU.BHB.HHZ. Md:1.7 14 END duration s
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