Earthquake with magnitude of ML 0.9 on date 20-04-2007 and time 09:51:13 (UTC) in region 2 km S Robilante (CN)

A magnitude ML 0.9 earthquake occured in region: 2 km S Robilante (CN), on

  • 20-04-2007 09:51:13 (UTC)
  • 20-04-2007 11:51:13 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.2760, 7.5190 at 2 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 2 2306 2306
Vernante CN 4 1178 3484
Roaschia CN 5 107 3591
Roccavione CN 5 2761 6352
Borgo San Dalmazzo CN 6 12468 18820
Boves CN 7 9835 28655
Limone Piemonte CN 9 1485 30140
Roccasparvera CN 10 741 30881
Valdieri CN 10 935 31816
Peveragno CN 10 5543 37359
Vignolo CN 10 2600 39959
Entracque CN 10 774 40733
Gaiola CN 11 582 41315
Moiola CN 11 234 41549
Rittana CN 13 109 41658
Cervasca CN 13 5013 46671
Valloriate CN 13 109 46780
Cuneo CN 13 56081 102861
Chiusa di Pesio CN 14 3676 106537
Bernezzo CN 14 4104 110641
Beinette CN 14 3423 114064
Caraglio CN 17 6836 120900
Demonte CN 18 2003 122903
Valgrana CN 19 786 123689
Pianfei CN 19 2202 125891
Roccaforte Mondovì CN 19 2085 127976
Margarita CN 20 1441 129417

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km S of Cuneo (56081 inhabitants)
55 Km NW of Sanremo (54807 inhabitants)
77 Km W of Savona (61345 inhabitants)
82 Km S of Moncalieri (57294 inhabitants)
88 Km SW of Asti (76202 inhabitants)
90 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
Bulletin
Rev1000
Md 2.0
ML 0.9
2007-04-20
09:51:13
44.276 7.519 2 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 625309
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-04-20 09:51:13 ± 0.23
Latitude 44.2760 ± 0.0126
Longitude 7.5190 ± 0.0126
Depth (km) 2 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 625309

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1524
Semi-minor axis of confidence ellipse (meter) 201
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 272
Circular confidence region, given by single value of horizontal uncertainty (meter) 1720.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 160
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49912
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 625309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:54:43

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 625309
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:54:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IMI.SHZ. 2007-04-20T09:51:30.60 10.0 undecidable manual Pg 0 0 0
IV.DOI.HHE. 2007-04-20T09:51:24.45 0.3 undecidable manual Sg 320 33.2445 -0.26 73
IV.FIN.SHZ. 2007-04-20T09:51:24.08 0.3 undecidable manual Pg 98 55.4001 -0.182 71
GU.PZZ.SHZ. 2007-04-20T09:51:21.41 0.1 undecidable manual Pg 309 40.9257 0.044 100
IV.DOI.HHE. 2007-04-20T09:51:20.07 0.1 undecidable manual Pg 320 33.2445 0.241 97
GU.STV.HHN. 2007-04-20T09:51:18.37 0.3 undecidable manual Sg 258 15.6732 -0.26 75
GU.STV.HHN. 2007-04-20T09:51:16.63 0.3 undecidable manual Pg 258 15.6732 0.308 74
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