Earthquake with magnitude of ML 0.5 on date 26-04-2010 and time 11:16:04 (Italy) in region 3 km SW Valgrana (CN)

A magnitude ML 0.5 earthquake occured in region: 3 km SW Valgrana (CN), on

  • 26-04-2010 09:16:04 (UTC)
  • 26-04-2010 11:16:04 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3840, 7.3670 at 7 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
Valgrana CN 3 786 786
Monterosso Grana CN 4 505 1291
Rittana CN 5 109 1400
Valloriate CN 5 109 1509
Bernezzo CN 6 4104 5613
Montemale di Cuneo CN 6 241 5854
Gaiola CN 6 582 6436
Caraglio CN 6 6836 13272
Moiola CN 7 234 13506
Roccasparvera CN 8 741 14247
Pradleves CN 8 250 14497
Cervasca CN 8 5013 19510
Vignolo CN 9 2600 22110
Dronero CN 9 7035 29145
Demonte CN 9 2003 31148
Roccabruna CN 11 1585 32733
Villar San Costanzo CN 11 1547 34280
Borgo San Dalmazzo CN 11 12468 46748
Roccavione CN 12 2761 49509
Valdieri CN 12 935 50444
Cartignano CN 12 190 50634
Castelmagno CN 13 66 50700
Aisone CN 14 248 50948
Roaschia CN 15 107 51055
San Damiano Macra CN 15 430 51485
Cuneo CN 15 56081 107566
Robilante CN 15 2306 109872
Boves CN 16 9835 119707
Entracque CN 16 774 120481
Busca CN 17 10181 130662
Vinadio CN 17 644 131306
Valmala CN 18 52 131358
Rossana CN 19 908 132266
Celle di Macra CN 19 100 132366
Tarantasca CN 19 2122 134488
Macra CN 20 59 134547

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km W of Cuneo (56081 inhabitants)
71 Km NW of Sanremo (54807 inhabitants)
73 Km SW of Moncalieri (57294 inhabitants)
81 Km SW of Torino (890529 inhabitants)
88 Km SW of Asti (76202 inhabitants)
89 Km W of Savona (61345 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 1.5
ML 0.5
2010-04-26
09:16:04
44.384 7.367 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1041509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-26 09:16:04 ± 0.35
Latitude 44.3840 ± 0.0072
Longitude 7.3670 ± 0.0239
Depth (km) 7 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1041509

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1902
Semi-minor axis of confidence ellipse (meter) 718
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 72
Circular confidence region, given by single value of horizontal uncertainty (meter) 2061.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 227
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21674
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1041509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:01:51

Md:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1041509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:01:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHN. 2010-04-26T09:16:29.40 10.0 undecidable manual Pg 0 0 0
GU.PZZ.HHZ. 2010-04-26T09:16:13.52 0.3 undecidable manual Sg 305 24.0537 0.114 76
IV.DOI.HHE. 2010-04-26T09:16:10.89 0.3 undecidable manual Sg 325 16.3725 0.006 78
GU.STV.HHE. 2010-04-26T09:16:10.49 0.6 undecidable manual Sg 192 15.6732 -0.178 50
GU.PZZ.HHZ. 2010-04-26T09:16:09.58 0.1 undecidable manual Pg 305 24.0537 -0.148 100
GU.STV.HHE. 2010-04-26T09:16:08.35 0.3 undecidable manual Pg 192 15.6732 0.207 75
IV.DOI.HHE. 2010-04-26T09:16:08.26 0.3 undecidable manual Pg 325 16.3725 -0.009 78
IV.SALO.HHE. 2010-04-26T09:16:02.60 10.0 undecidable manual Pg 0 0 0
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