Earthquake with magnitude of M 2.0 on date 27-11-1990 and time 14:20:49 (UTC) in region 4 km SW Valgrana (CN)

A magnitude M 2.0 earthquake occured in region: 4 km SW Valgrana (CN), on

  • 27-11-1990 14:20:49 (UTC)
  • 27-11-1990 15:20:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.3760, 7.3590 at 10 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 4 786 786
Valloriate CN 4 109 895
Rittana CN 4 109 1004
Monterosso Grana CN 5 505 1509
Gaiola CN 6 582 2091
Bernezzo CN 6 4104 6195
Moiola CN 7 234 6429
Montemale di Cuneo CN 7 241 6670
Caraglio CN 7 6836 13506
Roccasparvera CN 8 741 14247
Pradleves CN 8 250 14497
Demonte CN 8 2003 16500
Cervasca CN 9 5013 21513
Vignolo CN 9 2600 24113
Dronero CN 10 7035 31148
Valdieri CN 11 935 32083
Roccabruna CN 11 1585 33668
Borgo San Dalmazzo CN 12 12468 46136
Roccavione CN 12 2761 48897
Villar San Costanzo CN 12 1547 50444
Castelmagno CN 12 66 50510
Cartignano CN 13 190 50700
Aisone CN 13 248 50948
Roaschia CN 14 107 51055
San Damiano Macra CN 15 430 51485
Robilante CN 15 2306 53791
Entracque CN 15 774 54565
Cuneo CN 16 56081 110646
Boves CN 16 9835 120481
Vinadio CN 16 644 121125
Busca CN 18 10181 131306
Celle di Macra CN 19 100 131406
Valmala CN 19 52 131458
Rossana CN 20 908 132366
Macra CN 20 59 132425
Tarantasca CN 20 2122 134547

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km W of Cuneo (56081 inhabitants)
70 Km NW of Sanremo (54807 inhabitants)
74 Km SW of Moncalieri (57294 inhabitants)
82 Km SW of Torino (890529 inhabitants)
89 Km SW of Asti (76202 inhabitants)
90 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
M 2.0 1990-11-27
14:20:49
44.376 7.359 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 131509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-11-27 14:20:49 ± 0.121
Latitude 44.3760 ± 0.0101
Longitude 7.3590 ± 0.0149
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 131509

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1638.2
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00769
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

M:2.0

Field Value
Value 2.0
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 131509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PCP.Z. 1990-11-27T14:21:06.98 10.0 undecidable manual PG 78 0.8547 0.64 0.2
--.IMI.Z. 1990-11-27T14:21:01.59 10.0 undecidable manual PG 140 0.5883 0.06 1.3
--.FIN.Z. 1990-11-27T14:21:01.77 10.0 undecidable manual PG 105 0.6327 -0.29 0.8
--.BHB.Z. 1990-11-27T14:20:58.70 10.0 undecidable manual PG 351 0.4551 -0.25 1.1
--.ROB.Z. 1990-11-27T14:20:57.16 10.0 undecidable manual PG 101 0.3663 -0.15 1.4
--.PZZ.Z. 1990-11-27T14:20:54.61 10.0 undecidable manual PG 305 0.2109 0.07 1.5
--.STV.Z. 1990-11-27T14:20:53.50 10.0 undecidable manual PG 189 0.1221 0.35 0.9
--.ENR.Z. 1990-11-27T14:20:52.88 10.0 undecidable manual PG 163 0.1554 -0.36 0.8
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