Earthquake with magnitude of ML 1.2 on date 03-05-2020 and time 09:54:22 (Italy) in region 1 km S Stroppo (CN)

A magnitude ML 1.2 earthquake occured in region: 1 km S Stroppo (CN), on

  • 03-05-2020 07:54:22 (UTC)
  • 03-05-2020 09:54:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.49, 7.13 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
Stroppo CN 1 103 103
Macra CN 4 59 162
Celle di Macra CN 4 100 262
Marmora CN 5 68 330
Canosio CN 6 80 410
Prazzo CN 6 170 580
Elva CN 6 97 677
San Damiano Macra CN 10 430 1107
Sampeyre CN 11 1022 2129
Acceglio CN 11 162 2291
Castelmagno CN 12 66 2357
Casteldelfino CN 12 157 2514
Cartignano CN 13 190 2704
Bellino CN 13 109 2813
Frassino CN 15 265 3078
Pradleves CN 15 250 3328
Pontechianale CN 16 179 3507
Roccabruna CN 17 1585 5092
Melle CN 17 292 5384
Argentera CN 18 83 5467
Sambuco CN 18 92 5559
Pietraporzio CN 18 77 5636
Monterosso Grana CN 18 505 6141
Valmala CN 18 52 6193
Dronero CN 19 7035 13228

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km W of Cuneo (56081 inhabitants)
72 Km SW of Moncalieri (57294 inhabitants)
78 Km SW of Torino (890529 inhabitants)
91 Km NW of Sanremo (54807 inhabitants)
96 Km W of Asti (76202 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 1.2 2020-05-03
07:54:22
44.49 7.13 10 2020-05-03
08:04:53
Sala Sismica INGV-Roma 78799961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-03 07:54:22 ± 0.19
Latitude 44.49 ± 0.01
Longitude 7.13 ± 0.03
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78799961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2324
Semi-minor axis of confidence ellipse (meter) 225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 242
Circular confidence region, given by single value of horizontal uncertainty (meter) 2320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 176
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.01529
Epicentral distance of station farthest from the epicenter (degree) 0.661
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 78799961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-03 08:04:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RSP.HHZ. 2020-05-03T07:54:44.91 0.6 undecidable manual S 8 0.661 50 -0.2 48
MN.BNI.HHE. 2020-05-03T07:54:44.25 0.6 undecidable manual S 330 0.6421 50 -0.31 47
GU.GBOS.HHE. 2020-05-03T07:54:42.52 0.3 undecidable manual S 116 0.5675 50 0.17 74
GU.RRL.HHE. 2020-05-03T07:54:39.71 0.3 undecidable manual S 331 0.4892 50 -0.31 73
GU.RSP.HHZ. 2020-05-03T07:54:35.80 0.1 undecidable manual P 8 0.661 50 0.15 97
MN.BNI.HHE. 2020-05-03T07:54:35.29 0.1 undecidable manual P 330 0.6421 50 -0.05 100
GU.BHB.HHZ. 2020-05-03T07:54:35.48 0.6 undecidable manual S 16 0.3543 50 -0.54 47
GU.ENR.HHE. 2020-05-03T07:54:35.09 0.3 undecidable manual S 142 0.339 50 -0.49 73
GU.GBOS.HHE. 2020-05-03T07:54:34.69 0.1 undecidable manual P 116 0.5675 50 0.63 88
GU.STV.HHZ. 2020-05-03T07:54:33.21 0.3 undecidable manual S 150 0.286 50 -0.79 65
GU.RRL.HHE. 2020-05-03T07:54:33.80 0.1 undecidable manual P 331 0.4892 50 1.09 73
GU.BHB.HHZ. 2020-05-03T07:54:30.25 0.3 negative manual P 16 0.3543 50 -0.16 78
GU.ENR.HHE. 2020-05-03T07:54:30.59 0.1 undecidable manual P 142 0.339 50 0.44 98
GU.STV.HHZ. 2020-05-03T07:54:29.26 0.3 undecidable manual P 150 0.286 50 0.02 81
GU.PZZ.HHZ. 2020-05-03T07:54:25.51 0.6 undecidable manual S 326 0.0153 170 -0.58 50
GU.PZZ.HHZ. 2020-05-03T07:54:24.66 0.3 undecidable manual P 326 0.0153 170 -0.01 86
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.STV.HHE. ML:1 4.69E-5 1.48 AML other m 2020-05-03T07:54:33.24
GU.STV.HHN. ML:1.1 5.415E-5 0.06 AML other m 2020-05-03T07:54:33.67
GU.BHB.HHN. ML:1.3 6.83E-5 0.22 AML other m 2020-05-03T07:54:36.13
GU.BHB.HHE. ML:1.3 6.885E-5 1.18 AML other m 2020-05-03T07:54:36.22
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