Earthquake with magnitude of Md 1.9 on date 11-05-1986 and time 05:04:48 (Italy) in region 3 km W Demonte (CN)

A magnitude Md 1.9 earthquake occured in region: 3 km W Demonte (CN), on

  • 11-05-1986 03:04:48 (UTC)
  • 11-05-1986 05:04:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.3170, 7.2650 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
Demonte CN 3 2003 2003
Aisone CN 3 248 2251
Vinadio CN 7 644 2895
Valloriate CN 9 109 3004
Moiola CN 10 234 3238
Castelmagno CN 11 66 3304
Valdieri CN 11 935 4239
Monterosso Grana CN 11 505 4744
Rittana CN 12 109 4853
Pradleves CN 12 250 5103
Gaiola CN 12 582 5685
Entracque CN 14 774 6459
Valgrana CN 14 786 7245
Roccasparvera CN 14 741 7986
Sambuco CN 15 92 8078
Bernezzo CN 16 4104 12182
Montemale di Cuneo CN 16 241 12423
Roaschia CN 16 107 12530
Vignolo CN 17 2600 15130
Caraglio CN 17 6836 21966
Roccavione CN 17 2761 24727
Borgo San Dalmazzo CN 18 12468 37195
Cervasca CN 18 5013 42208
Cartignano CN 18 190 42398
Dronero CN 19 7035 49433
Pietraporzio CN 19 77 49510
Roccabruna CN 19 1585 51095
San Damiano Macra CN 19 430 51525
Celle di Macra CN 20 100 51625
Robilante CN 20 2306 53931

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km W of Cuneo (56081 inhabitants)
69 Km NW of Sanremo (54807 inhabitants)
83 Km SW of Moncalieri (57294 inhabitants)
90 Km SW of Torino (890529 inhabitants)
97 Km W of Savona (61345 inhabitants)
99 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 1.9 1986-05-11
03:04:48
44.317 7.265 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 27139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-11 03:04:48 ± 0.351
Latitude 44.3170 ± 0.0218
Longitude 7.2650 ± 0.0221
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 27139

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) 2995.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 236
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
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) 0.00162
Epicentral distance of station farthest from the epicenter (degree) 0.00389
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.9

Field Value
Value 1.9
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 27139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:28:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.ROB.Z. 1986-05-11T03:05:04.60 10.0 undecidable manual SG 91 0.4329 0 0.7
--.SOO.Z. 1986-05-11T03:04:57.30 10.0 undecidable manual SG 328 0.2109 -0.44 0.3
--.ROB.Z. 1986-05-11T03:04:57.80 10.0 undecidable manual PG 91 0.4329 -0.08 1.6
--.DA9.Z. 1986-05-11T03:04:56.50 10.0 undecidable manual SG 355 0.1776 -0.14 0.7
--.DA9.Z. 1986-05-11T03:04:54.00 10.0 undecidable manual PG 355 0.1776 0.71 0.6
--.SOO.Z. 1986-05-11T03:04:53.90 10.0 undecidable manual PG 328 0.2109 -0.02 2.1
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