Earthquake with magnitude of ML 1.2 on date 26-04-2018 and time 08:34:02 (UTC) in region 6 km NW Acceglio (CN)

A magnitude ML 1.2 earthquake occured in region: 6 km NW Acceglio (CN), on

  • 26-04-2018 08:34:02 (UTC)
  • 26-04-2018 10:34:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5150, 6.9330 at 11 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 6 162 162
Bellino CN 10 109 271
Prazzo CN 10 170 441
Elva CN 13 97 538
Canosio CN 14 80 618
Casteldelfino CN 14 157 775
Pontechianale CN 14 179 954
Marmora CN 14 68 1022
Argentera CN 15 83 1105
Stroppo CN 15 103 1208
Macra CN 20 59 1267
Celle di Macra CN 20 100 1367

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km W of Cuneo (56081 inhabitants)
80 Km SW of Moncalieri (57294 inhabitants)
86 Km SW of Torino (890529 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2018-04-26
08:34:02
44.5152 6.9333 11 2018-04-26
08:47:09
Sala Sismica INGV-Roma 56120661
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-04-26 08:34:02 ± 0.18
Latitude 44.5152 ± 0.0072
Longitude 6.9333 ± 0.0151
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 56120661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1320
Semi-minor axis of confidence ellipse (meter) 570
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 1320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 212
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.13040
Epicentral distance of station farthest from the epicenter (degree) 0.45236
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 56120661
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-04-26 08:47:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.ENR.HHZ. 2018-04-26T08:34:18.40 0.6 undecidable manual S 129 50.2164 50 0.15 46
GU.RRL.HHE. 2018-04-26T08:34:17.24 0.3 undecidable manual S 346 46.4202 50 0.01 72
GU.STV.HHZ. 2018-04-26T08:34:16.04 0.3 undecidable manual S 134 43.2234 50 -0.34 67
GU.BHB.HHZ. 2018-04-26T08:34:16.33 0.3 undecidable manual S 36 44.0226 50 -0.28 68
GU.ENR.HHZ. 2018-04-26T08:34:11.73 0.3 positive manual P 129 50.2164 50 0.18 69
GU.BHB.HHZ. 2018-04-26T08:34:11.17 0.3 undecidable manual P 36 44.0226 50 0.57 63
GU.RRL.HHE. 2018-04-26T08:34:10.75 0.1 undecidable manual P 346 46.4202 50 -0.21 91
GU.STV.HHZ. 2018-04-26T08:34:10.39 0.3 undecidable manual P 134 43.2234 50 -0.08 71
GU.PZZ.HHZ. 2018-04-26T08:34:08.67 0.1 undecidable manual S 94 14.4744 50 -0.05 100
GU.PZZ.HHZ. 2018-04-26T08:34:06.22 0.1 positive manual P 94 14.4744 50 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:1.4 0.00021550000000000003 0.52 AML other m 2018-04-26T08:34:08.72
GU.PZZ.HHE. ML:1.3 0.000184 1.44 AML other m 2018-04-26T08:34:09.19
GU.STV.HHE. ML:0.9 0.0000264 0.8 AML other m 2018-04-26T08:34:17.66
GU.STV.HHN. ML:1.0 0.00003455 1.38 AML other m 2018-04-26T08:34:17.27
GU.ENR.HHN. ML:1.3 0.00005255 1.12 AML other m 2018-04-26T08:34:19.72
GU.ENR.HHE. ML:1.3 0.00005105 1.18 AML other m 2018-04-26T08:34:19.02
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