Earthquake with magnitude of ML 1.4 on date 18-06-2021 and time 01:12:04 (Italy) in region 5 km NW Acceglio (CN)

A magnitude ML 1.4 earthquake occured in region: 5 km NW Acceglio (CN), on

  • 17-06-2021 23:12:04 (UTC)
  • 18-06-2021 01:12:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.504, 6.943 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
Acceglio CN 5 162 162
Prazzo CN 9 170 332
Bellino CN 11 109 441
Canosio CN 12 80 521
Elva CN 12 97 618
Marmora CN 13 68 686
Argentera CN 14 83 769
Casteldelfino CN 14 157 926
Stroppo CN 15 103 1029
Pontechianale CN 15 179 1208
Macra CN 19 59 1267
Pietraporzio CN 19 77 1344
Celle di Macra CN 19 100 1444

Municipalities with at least 50000 inhabitants

An earthquake occurred to
50 Km W of Cuneo (56081 inhabitants)
81 Km SW of Moncalieri (57294 inhabitants)
86 Km SW of Torino (890529 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
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 (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 1.4 2021-06-17
23:12:04
44.5038 6.9433 10 2021-06-17
23:17:54
Sala Sismica INGV-Roma 91473061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-17 23:12:04 ± 0.15
Latitude 44.5038 ± 0.0072
Longitude 6.9433 ± 0.0101
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 91473061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 987
Semi-minor axis of confidence ellipse (meter) 354
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 990
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 151
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.12321
Epicentral distance of station farthest from the epicenter (degree) 0.89393
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 91473061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-17 23:17:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.RORO.HHZ. 2021-06-17T23:12:33.86 0.6 undecidable manual S 116 0.8939 50 0.32 41
RD.ORIF.BHE. 2021-06-17T23:12:32.30 0.6 undecidable manual S 299 0.8616 50 -0.29 41
GU.GBOS.HHZ. 2021-06-17T23:12:27.63 0.6 undecidable manual S 112 0.6925 50 0.06 45
FR.SAOF.HHE. 2021-06-17T23:12:26.82 0.6 undecidable manual S 140 0.6772 50 -0.3 43
GU.RORO.HHZ. 2021-06-17T23:12:21.48 0.1 undecidable manual P 116 0.8939 50 0.27 82
GU.RRL.HHZ. 2021-06-17T23:12:20.23 0.6 undecidable manual S 345 0.4308 50 0.4 44
RD.ORIF.BHE. 2021-06-17T23:12:20.51 0.1 undecidable manual P 299 0.8616 50 -0.15 85
GU.BURY.HHE. 2021-06-17T23:12:20.80 0.1 undecidable manual P 148 0.8445 50 0.43 80
GU.ENR.HHZ. 2021-06-17T23:12:19.47 0.6 undecidable manual S 129 0.4362 50 -0.52 43
GU.BHB.HHZ. 2021-06-17T23:12:18.54 0.6 undecidable manual S 34 0.402 50 -0.43 44
GU.GBOS.HHZ. 2021-06-17T23:12:18.04 0.1 undecidable manual P 112 0.6925 50 0.28 86
FR.SAOF.HHE. 2021-06-17T23:12:17.51 0.1 undecidable manual P 140 0.6772 50 0.01 91
GU.RRL.HHZ. 2021-06-17T23:12:13.27 0.6 undecidable manual P 345 0.4308 50 -0.02 48
GU.BHB.HHZ. 2021-06-17T23:12:12.90 0.1 undecidable manual P 34 0.402 50 0.1 94
GU.ENR.HHZ. 2021-06-17T23:12:12.91 0.1 undecidable manual P 129 0.4362 50 -0.48 87
GU.PZZ.HHZ. 2021-06-17T23:12:10.01 0.3 undecidable manual S 89 0.1232 126 -0.22 73
GU.PZZ.HHZ. 2021-06-17T23:12:07.83 0.1 positive manual P 89 0.1232 126 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.8 0.0006745 0.12 AML other m 2021-06-17T23:12:10.14
GU.PZZ.HHE. ML:1.9 0.000856 0.26 AML other m 2021-06-17T23:12:10.27
GU.BHB.HHN. ML:0.9 2.27E-5 0.46 AML other m 2021-06-17T23:12:18.58
GU.BHB.HHE. ML:0.9 2.455E-5 1.38 AML other m 2021-06-17T23:12:19.04
GU.ENR.HHE. ML:1.4 7.345E-5 0.84 AML other m 2021-06-17T23:12:20.82
GU.ENR.HHN. ML:1.4 7.6E-5 0.22 AML other m 2021-06-17T23:12:21.47
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download