Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of Md 2.1 on date 06-09-1993 and time 13:30:09 (Italy) in region 2 km NW Monterosso Grana (CN)

A magnitude Md 2.1 earthquake occured in region: 2 km NW Monterosso Grana (CN), on

  • 06-09-1993 11:30:09 (UTC)
  • 06-09-1993 13:30:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4220, 7.3140 at 13 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 2 505 505
Pradleves CN 3 250 755
Montemale di Cuneo CN 5 241 996
Valgrana CN 6 786 1782
Cartignano CN 7 190 1972
Roccabruna CN 7 1585 3557
Dronero CN 7 7035 10592
Castelmagno CN 8 66 10658
San Damiano Macra CN 9 430 11088
Villar San Costanzo CN 9 1547 12635
Caraglio CN 9 6836 19471
Bernezzo CN 10 4104 23575
Valloriate CN 10 109 23684
Rittana CN 11 109 23793
Demonte CN 12 2003 25796
Gaiola CN 12 582 26378
Celle di Macra CN 13 100 26478
Moiola CN 13 234 26712
Cervasca CN 13 5013 31725
Roccasparvera CN 14 741 32466
Macra CN 14 59 32525
Aisone CN 14 248 32773
Valmala CN 14 52 32825
Vignolo CN 14 2600 35425
Melle CN 16 292 35717
Busca CN 16 10181 45898
Rossana CN 17 908 46806
Vinadio CN 17 644 47450
Frassino CN 17 265 47715
Venasca CN 17 1437 49152
Brossasco CN 17 1084 50236
Valdieri CN 17 935 51171
Borgo San Dalmazzo CN 17 12468 63639
Stroppo CN 18 103 63742
Marmora CN 18 68 63810
Roccavione CN 18 2761 66571
Canosio CN 19 80 66651
Cuneo CN 19 56081 122732
Isasca CN 19 76 122808
Piasco CN 20 2774 125582

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Cuneo (56081 inhabitants)
71 Km SW of Moncalieri (57294 inhabitants)
77 Km NW of Sanremo (54807 inhabitants)
78 Km SW of Torino (890529 inhabitants)
88 Km SW of Asti (76202 inhabitants)
94 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 2.4 		1993-09-06
11:30:09		 44.422 7.314 13 2013-07-15
08:40:51		 Bollettino Sismico Italiano INGV 196029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-09-06 11:30:09 ± 0.12
Latitude 44.4220 ± 0.0085
Longitude 7.3140 ± 0.0144
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 196029

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) 1480.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 35
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) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.01101
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 196029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 20:04:11

M:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 196029
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
--.LRG.Z. 1993-09-06T11:30:47.10 10.0 undecidable manual SN 215 1.1766 -0.09 0.6
--.LMR.Z. 1993-09-06T11:30:47.70 10.0 undecidable manual SN 208 1.221 -0.61 0.3
--.LPL.Z. 1993-09-06T11:30:46.00 10.0 undecidable manual SN 339 1.1544 -0.79 0.3
--.LPG.Z. 1993-09-06T11:30:46.20 10.0 undecidable manual SN 339 1.1433 -0.07 0.6
--.FRF.Z. 1993-09-06T11:30:40.10 10.0 undecidable manual SN! 209 0.9768 -2.34 0
--.PCP.Z. 1993-09-06T11:30:38.71 10.0 undecidable manual SG 81 0.8769 -0.72 0.3
--.LMR.Z. 1993-09-06T11:30:32.30 10.0 undecidable manual PN 208 1.221 0.57 0.9
--.FIN.Z. 1993-09-06T11:30:32.43 10.0 undecidable manual SG 108 0.6771 -0.26 0.7
--.IMI.Z. 1993-09-06T11:30:31.60 10.0 undecidable manual SG 140 0.6549 -1.09 0.2
--.RSP.Z. 1993-09-06T11:30:31.64 10.0 undecidable manual SG! 356 0.7326 -2.82 0
--.LRG.Z. 1993-09-06T11:30:31.50 10.0 undecidable manual PN 215 1.1766 0.42 1.1
--.LPL.Z. 1993-09-06T11:30:31.50 10.0 undecidable manual PN 339 1.1544 0.64 0.8
--.LPG.Z. 1993-09-06T11:30:31.60 10.0 undecidable manual PN 339 1.1433 1.05 0.3
--.LSD.Z. 1993-09-06T11:30:29.24 10.0 undecidable manual PN 353 1.0323 0.13 1.5
--.RRL.Z. 1993-09-06T11:30:29.62 10.0 undecidable manual SG 323 0.6216 -1.43 0.1
--.SBF.Z. 1993-09-06T11:30:28.10 10.0 undecidable manual SG 171 0.555 -1.04 0.2
--.PCP.Z. 1993-09-06T11:30:27.80 10.0 undecidable manual PG 81 0.8769 0.47 1.3
--.FRF.Z. 1993-09-06T11:30:27.70 10.0 undecidable manual PN 209 0.9768 -0.64 0.9
--.ROB.Z. 1993-09-06T11:30:24.70 10.0 undecidable manual SG 106 0.4107 0.28 0.7
--.FIN.Z. 1993-09-06T11:30:22.79 10.0 undecidable manual PG 108 0.6771 0.08 1.9
--.BHB.Z. 1993-09-06T11:30:22.95 10.0 undecidable manual SG 354 0.3996 -1.36 0.1
--.IMI.Z. 1993-09-06T11:30:22.25 10.0 undecidable manual PG 140 0.6549 -0.15 1.9
--.RSP.Z. 1993-09-06T11:30:22.37 10.0 undecidable manual PG 356 0.7326 -1.36 0.2
--.RRL.Z. 1993-09-06T11:30:21.41 10.0 undecidable manual PG 323 0.6216 -0.36 1.6
--.SBF.Z. 1993-09-06T11:30:20.80 10.0 undecidable manual PG 171 0.555 0.14 1.9
--.ROB.Z. 1993-09-06T11:30:18.45 10.0 undecidable manual PG 106 0.4107 0.51 1.4
--.BHB.Z. 1993-09-06T11:30:17.62 10.0 undecidable manual PG 354 0.3996 -0.25 1.8
--.ENR.Z. 1993-09-06T11:30:17.20 10.0 undecidable manual SG 158 0.2109 -0.64 0.5
--.STV.Z. 1993-09-06T11:30:16.40 10.0 undecidable manual SG 176 0.1665 -0.63 0.7
--.PZZ.Z. 1993-09-06T11:30:16.15 10.0 undecidable manual SG 298 0.1665 -0.58 0.5
--.DOI.Z. 1993-09-06T11:30:15.90 10.0 undecidable manual SG 329 0.0888 0.48 0.6
--.ENR.Z. 1993-09-06T11:30:14.26 10.0 undecidable manual PG 158 0.2109 0.13 1.9
--.PZZ.Z. 1993-09-06T11:30:13.71 10.0 undecidable manual PG 298 0.1665 0.21 1.8
--.DOI.Z. 1993-09-06T11:30:13.10 10.0 negative manual PG 329 0.0888 0.74 1.9
--.STV.Z. 1993-09-06T11:30:13.68 10.0 positive manual PG 176 0.1665 0.22 3.6
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