Earthquake (quarry blast) with magnitude of ML 1.1 on date 26-05-2016 and time 11:37:50 (Italy) in region 1 km SW Robilante (CN)

A magnitude ML 1.1 (quarry blast) earthquake occured in region: 1 km SW Robilante (CN), on

  • 26-05-2016 09:37:50 (UTC)
  • 26-05-2016 11:37:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2850, 7.5060 at 0 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Event type: quarry blast.

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
Robilante CN 1 2306 2306
Roccavione CN 4 2761 5067
Roaschia CN 4 107 5174
Vernante CN 5 1178 6352
Borgo San Dalmazzo CN 5 12468 18820
Boves CN 6 9835 28655
Roccasparvera CN 8 741 29396
Valdieri CN 9 935 30331
Vignolo CN 9 2600 32931
Gaiola CN 10 582 33513
Entracque CN 10 774 34287
Moiola CN 10 234 34521
Peveragno CN 10 5543 40064
Limone Piemonte CN 11 1485 41549
Rittana CN 11 109 41658
Cervasca CN 11 5013 46671
Valloriate CN 12 109 46780
Cuneo CN 13 56081 102861
Bernezzo CN 13 4104 106965
Beinette CN 14 3423 110388
Chiusa di Pesio CN 15 3676 114064
Caraglio CN 16 6836 120900
Demonte CN 17 2003 122903
Valgrana CN 17 786 123689
Pianfei CN 19 2202 125891
Roccaforte Mondovì CN 20 2085 127976
Margarita CN 20 1441 129417
Monterosso Grana CN 20 505 129922

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km SW of Cuneo (56081 inhabitants)
56 Km NW of Sanremo (54807 inhabitants)
78 Km W of Savona (61345 inhabitants)
81 Km S of Moncalieri (57294 inhabitants)
88 Km SW of Asti (76202 inhabitants)
89 Km S 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 1.1 2016-05-26
09:37:50
44.2848 7.5062 1 2016-05-26
09:55:53
Sala Sismica INGV-Roma 25341731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-05-26 09:37:50 ± 0.11
Latitude 44.2848 ± 0.0081
Longitude 7.5062 ± 0.0088
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type quarry blast
Origin ID 25341731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 960
Semi-minor axis of confidence ellipse (meter) 660
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 960.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
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) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 0.57647
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:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 25341731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-05-26 09:55:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BHB.HHE. 2016-05-26T09:38:02.20 0.6 undecidable manual P 343 63.9915 50 -0.49 42
GU.CANO.HHE. 2016-05-26T09:38:01.50 0.6 undecidable manual P 98 58.6968 90 -0.32 44
GU.RORO.HHE. 2016-05-26T09:37:59.99 0.3 undecidable manual P 113 48.5181 91 0.22 68
GU.PZZ.HHZ. 2016-05-26T09:37:58.18 0.1 undecidable manual P 309 39.5271 91 0.21 92
GU.MGRO.HHE. 2016-05-26T09:37:57.06 0.3 undecidable manual P 138 36.0417 91 -0.22 69
FR.SAOF.HHZ.00 2016-05-26T09:37:56.83 0.3 undecidable manual P 174 33.3444 91 0.09 72
GU.GBOS.HHZ. 2016-05-26T09:37:55.66 0.3 undecidable manual P 100 26.9508 91 0.21 71
GU.ENR.HHZ. 2016-05-26T09:37:51.87 0.1 undecidable manual P 227 9.3795 93 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.ENR.HHE. ML:1.6 0.0006414999999999999 0.34 AML other m 2016-05-26T09:37:54.36
GU.PZZ.HHN. ML:1.3 0.0000791 0.42 AML other m 2016-05-26T09:38:05.16
GU.PZZ.HHE. ML:1.3 0.0000739 0.36 AML other m 2016-05-26T09:38:06.75
FR.SAOF.HHE.00 ML:1.0 0.000037900000000000006 0.6 AML other m 2016-05-26T09:38:03.07
FR.SAOF.HHN.00 ML:1.0 0.00003895 0.44 AML other m 2016-05-26T09:38:04.61
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