Earthquake with magnitude of Md 2.4 on date 22-09-1986 and time 18:22:29 (Italy) in region 3 km S Celle di Macra (CN)

A magnitude Md 2.4 earthquake occured in region: 3 km S Celle di Macra (CN), on

  • 22-09-1986 16:22:29 (UTC)
  • 22-09-1986 18:22:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.4550, 7.1880 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
Celle di Macra CN 3 100 100
Macra CN 5 59 159
Castelmagno CN 5 66 225
San Damiano Macra CN 7 430 655
Marmora CN 7 68 723
Stroppo CN 8 103 826
Canosio CN 8 80 906
Cartignano CN 8 190 1096
Pradleves CN 9 250 1346
Prazzo CN 11 170 1516
Monterosso Grana CN 12 505 2021
Elva CN 12 97 2118
Roccabruna CN 13 1585 3703
Sampeyre CN 14 1022 4725
Dronero CN 14 7035 11760
Frassino CN 15 265 12025
Montemale di Cuneo CN 15 241 12266
Sambuco CN 16 92 12358
Acceglio CN 16 162 12520
Villar San Costanzo CN 16 1547 14067
Aisone CN 16 248 14315
Melle CN 16 292 14607
Valmala CN 16 52 14659
Valgrana CN 16 786 15445
Vinadio CN 16 644 16089
Pietraporzio CN 17 77 16166
Demonte CN 18 2003 18169
Casteldelfino CN 18 157 18326
Brossasco CN 19 1084 19410
Argentera CN 19 83 19493
Bellino CN 20 109 19602
Caraglio CN 20 6836 26438
Valloriate CN 20 109 26547

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km W of Cuneo (56081 inhabitants)
72 Km SW of Moncalieri (57294 inhabitants)
79 Km SW of Torino (890529 inhabitants)
85 Km NW of Sanremo (54807 inhabitants)
94 Km SW of Asti (76202 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 2.4
M 2.5
1986-09-22
16:22:29
44.455 7.188 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 34509
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-09-22 16:22:29 ± 0.194
Latitude 44.4550 ± 0.0125
Longitude 7.1880 ± 0.0208
Depth (km) 10 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 34509

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) 2160.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 97
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
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) 0.00065
Epicentral distance of station farthest from the epicenter (degree) 0.01093
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

Md:2.4

Field Value
Value 2.4
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 34509
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:35:03

M:2.5

Field Value
Value 2.5
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 34509
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
--.LSD.Z. 1986-09-22T16:23:02.40 10.0 undecidable manual SG 358 0.999 -1.67 0
--.FIN.Z. 1986-09-22T16:22:56.10 10.0 undecidable manual SG 108 0.7659 -0.54 0.4
--.CKI.Z. 1986-09-22T16:22:56.50 10.0 undecidable manual SG 92 0.777 -0.41 0.4
--.IMP.Z. 1986-09-22T16:22:54.80 10.0 undecidable manual SG 136 0.7326 -0.8 0.2
--.LMR.Z. 1986-09-22T16:22:53.20 10.0 undecidable manual PN 203 1.2099 0.37 0.9
--.LRG.Z. 1986-09-22T16:22:52.40 10.0 undecidable manual PN 210 1.1544 0.38 0.9
--.LPG.Z. 1986-09-22T16:22:51.00 10.0 undecidable manual PN 343 1.0767 0.04 1.2
--.LSD.Z. 1986-09-22T16:22:49.80 10.0 undecidable manual PG 358 0.999 0.14 1.2
--.RRL.Z. 1986-09-22T16:22:48.40 10.0 undecidable manual SG 328 0.5439 -1.04 0.1
--.ROB.Z. 1986-09-22T16:22:48.80 10.0 undecidable manual SG 107 0.5106 0.43 0.5
--.FRF.Z. 1986-09-22T16:22:48.80 10.0 undecidable manual PG 203 0.9657 -0.37 1
--.CKI.Z. 1986-09-22T16:22:46.50 10.0 undecidable manual PG 92 0.777 0.96 0.3
--.FIN.Z. 1986-09-22T16:22:45.50 10.0 undecidable manual PG 108 0.7659 0.13 1.5
--.IMP.Z. 1986-09-22T16:22:44.90 10.0 undecidable manual PG 136 0.7326 0.12 1.5
--.SBF.Z. 1986-09-22T16:22:42.40 10.0 undecidable manual PG 163 0.6105 -0.15 1.5
--.ROB.Z. 1986-09-22T16:22:41.20 10.0 undecidable manual PG 107 0.5106 0.6 0.9
--.RRL.Z. 1986-09-22T16:22:40.60 10.0 undecidable manual PG 328 0.5439 -0.61 0.8
--.ENR.Z. 1986-09-22T16:22:39.80 10.0 undecidable manual SG 143 0.2775 -1.18 0.1
--.STV.Z. 1986-09-22T16:22:38.60 10.0 undecidable manual SG 153 0.222 -0.62 0.5
--.STV.Z. 1986-09-22T16:22:35.50 10.0 undecidable manual PG 153 0.222 0.18 3
--.ENR.Z. 1986-09-22T16:22:35.90 10.0 undecidable manual PG 143 0.2775 -0.43 2.3
--.SOO.Z. 1986-09-22T16:22:32.90 10.0 undecidable manual PG 308 0.0666 0.26 2.8
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download