Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.1 on date 31-10-1995 and time 15:39:44 (Italy) in region 1 km NE Monterosso Grana (CN)

A magnitude Md 2.1 earthquake occured in region: 1 km NE Monterosso Grana (CN), on

  • 31-10-1995 14:39:44 (UTC)
  • 31-10-1995 15:39:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.4180, 7.3340 at 9 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Monterosso Grana CN 1 505 505
Valgrana CN 4 786 1291
Montemale di Cuneo CN 4 241 1532
Pradleves CN 4 250 1782
Dronero CN 6 7035 8817
Roccabruna CN 7 1585 10402
Caraglio CN 8 6836 17238
Cartignano CN 8 190 17428
Villar San Costanzo CN 8 1547 18975
Bernezzo CN 9 4104 23079
Rittana CN 9 109 23188
Valloriate CN 9 109 23297
Castelmagno CN 10 66 23363
San Damiano Macra CN 10 430 23793
Gaiola CN 11 582 24375
Cervasca CN 11 5013 29388
Moiola CN 12 234 29622
Demonte CN 12 2003 31625
Roccasparvera CN 12 741 32366
Vignolo CN 13 2600 34966
Valmala CN 14 52 35018
Celle di Macra CN 14 100 35118
Aisone CN 15 248 35366
Macra CN 15 59 35425
Busca CN 16 10181 45606
Borgo San Dalmazzo CN 16 12468 58074
Rossana CN 16 908 58982
Melle CN 16 292 59274
Valdieri CN 16 935 60209
Roccavione CN 16 2761 62970
Venasca CN 17 1437 64407
Brossasco CN 17 1084 65491
Cuneo CN 18 56081 121572
Vinadio CN 18 644 122216
Frassino CN 18 265 122481
Tarantasca CN 19 2122 124603
Roaschia CN 19 107 124710
Stroppo CN 19 103 124813
Isasca CN 19 76 124889
Piasco CN 20 2774 127663
Marmora CN 20 68 127731
Robilante CN 20 2306 130037
Boves CN 20 9835 139872

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km W of Cuneo (56081 inhabitants)
71 Km SW of Moncalieri (57294 inhabitants)
75 Km NW of Sanremo (54807 inhabitants)
78 Km SW of Torino (890529 inhabitants)
87 Km SW of Asti (76202 inhabitants)
92 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 2.1
M 2.3 		1995-10-31
14:39:44		 44.418 7.334 9 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 235889
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1995-10-31 14:39:44 ± 0.548
Latitude 44.4180 ± 0.0149
Longitude 7.3340 ± 0.0723
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 235889

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) 5979.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 193
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00089
Epicentral distance of station farthest from the epicenter (degree) 0.01109
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 235889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:43:19

M:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 235889
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:42:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LRG.Z. 1995-10-31T14:40:23.90 10.0 undecidable manual SN 216 1.1877 0.39 0.7
--.LMR.Z. 1995-10-31T14:40:23.80 10.0 undecidable manual SN 208 1.2321 -0.78 0.4
--.LPG.Z. 1995-10-31T14:40:22.00 10.0 undecidable manual SN 339 1.1544 -0.67 0.5
--.LPL.Z. 1995-10-31T14:40:21.80 10.0 undecidable manual SN 338 1.1655 -1.39 0.1
--.FRF.Z. 1995-10-31T14:40:17.20 10.0 undecidable manual SG 210 0.9768 -1.12 0.2
--.LMR.Z. 1995-10-31T14:40:08.20 10.0 undecidable manual PN 208 1.2321 0.56 1.4
--.LPL.Z. 1995-10-31T14:40:07.41 10.0 undecidable manual PN 338 1.1655 0.57 1.4
--.LRG.Z. 1995-10-31T14:40:07.91 10.0 undecidable manual PN 216 1.1877 0.89 0.9
--.LPG.Z. 1995-10-31T14:40:06.91 10.0 undecidable manual PN 339 1.1544 0.38 1.7
--.FRF.Z. 1995-10-31T14:40:04.30 10.0 undecidable manual PG 210 0.9768 0.28 2
--.SBF.Z. 1995-10-31T14:40:01.30 10.0 undecidable manual SG! 172 0.555 -3.21 0
--.SBF.Z. 1995-10-31T14:39:55.90 10.0 undecidable manual PG 172 0.555 -0.97 0.9
--.DOI.Z. 1995-10-31T14:39:48.97 10.0 undecidable manual SG 323 0.0999 -0.72 0.5
--.DOI.Z. 1995-10-31T14:39:47.54 10.0 undecidable manual PG 323 0.0999 0.04 2.3
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