Earthquake with magnitude of ML 1.0 on date 23-03-2012 and time 09:45:27 (UTC) in region 1 km SW Robilante (CN)

A magnitude ML 1.0 earthquake occured in region: 1 km SW Robilante (CN), on

  • 23-03-2012 09:45:27 (UTC)
  • 23-03-2012 10:45:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2900, 7.5050 at 1 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 1 2306 2306
Roccavione CN 3 2761 5067
Roaschia CN 4 107 5174
Borgo San Dalmazzo CN 5 12468 17642
Vernante CN 5 1178 18820
Boves CN 6 9835 28655
Roccasparvera CN 8 741 29396
Vignolo CN 8 2600 31996
Valdieri CN 9 935 32931
Gaiola CN 9 582 33513
Moiola CN 10 234 33747
Entracque CN 10 774 34521
Peveragno CN 10 5543 40064
Rittana CN 11 109 40173
Cervasca CN 11 5013 45186
Limone Piemonte CN 11 1485 46671
Valloriate CN 12 109 46780
Cuneo CN 12 56081 102861
Bernezzo CN 12 4104 106965
Beinette CN 14 3423 110388
Chiusa di Pesio CN 14 3676 114064
Caraglio CN 16 6836 120900
Valgrana CN 17 786 121686
Demonte CN 17 2003 123689
Pianfei CN 19 2202 125891
Margarita CN 19 1441 127332
Roccaforte Mondovì CN 20 2085 129417
Montemale di Cuneo CN 20 241 129658
Monterosso Grana CN 20 505 130163

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SW of Cuneo (56081 inhabitants)
57 Km NW of Sanremo (54807 inhabitants)
78 Km W of Savona (61345 inhabitants)
80 Km S of Moncalieri (57294 inhabitants)
88 Km SW of Asti (76202 inhabitants)
88 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 1.7
ML 1.0
2012-03-23
09:45:27
44.29 7.505 1 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1351699
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-03-23 09:45:27 ± 0.09
Latitude 44.2900 ± 0.0072
Longitude 7.5050 ± 0.0063
Depth (km) 1 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1351699

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 789
Semi-minor axis of confidence ellipse (meter) 526
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 359
Circular confidence region, given by single value of horizontal uncertainty (meter) 943.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 4
Number of defining phases 4
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.28239
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1351699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:58:57

Md:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1351699
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:58:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.DOI.HHE. 2012-03-23T09:45:34.00 0.3 undecidable manual Pg 319 31.3464 -0.045 73
GU.GBOS.HHE. 2012-03-23T09:45:33.22 0.1 undecidable manual Pg 101 27.1506 0.017 98
GU.STV.HHE. 2012-03-23T09:45:30.93 0.3 undecidable manual Pg 251 15.0738 0.141 73
GU.ENR.HHN. 2012-03-23T09:45:29.64 0.1 undecidable manual Pg 224 9.7791 -0.087 100
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