Earthquake with magnitude of Md 2.0 on date 26-05-1986 and time 11:54:46 (Italy) in region 2 km E Roaschia (CN)

A magnitude Md 2.0 earthquake occured in region: 2 km E Roaschia (CN), on

  • 26-05-1986 09:54:46 (UTC)
  • 26-05-1986 11:54:46 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.26, 7.48 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Roaschia CN 2 107 107
Robilante CN 4 2306 2413
Vernante CN 4 1178 3591
Roccavione CN 6 2761 6352
Entracque CN 7 774 7126
Valdieri CN 7 935 8061
Borgo San Dalmazzo CN 8 12468 20529
Boves CN 9 9835 30364
Roccasparvera CN 10 741 31105
Moiola CN 10 234 31339
Limone Piemonte CN 10 1485 32824
Gaiola CN 10 582 33406
Vignolo CN 11 2600 36006
Rittana CN 12 109 36115
Valloriate CN 12 109 36224
Peveragno CN 13 5543 41767
Cervasca CN 14 5013 46780
Bernezzo CN 15 4104 50884
Cuneo CN 16 56081 106965
Demonte CN 16 2003 108968
Chiusa di Pesio CN 17 3676 112644
Beinette CN 17 3423 116067
Caraglio CN 18 6836 122903
Valgrana CN 18 786 123689

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SW of Cuneo (56081 inhabitants)
55 Km NW of Sanremo (54807 inhabitants)
80 Km W of Savona (61345 inhabitants)
84 Km S of Moncalieri (57294 inhabitants)
91 Km SW of Asti (76202 inhabitants)
92 Km S of Torino (890529 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
Rev 1000 Md 2.0
M 2.1
1986-05-26
09:54:46
44.26 7.48 9 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 28009
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1986-05-26 09:54:46 ± 0.078
Latitude 44.26 ± 0.01
Longitude 7.48 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 28009

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) 1125.7
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.00049
Epicentral distance of station farthest from the epicenter (degree) 0.00461
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

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 28009
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:29:30

M:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 28009
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 Takeoff_angle Residual Weight
--.FIN.Z. 1986-05-26T09:55:05.10 10.0 undecidable manual SG 95 0.0046 -0.39 0.1
--.IMP.Z. 1986-05-26T09:55:03.40 10.0 undecidable manual SG 139 0.004 0.11 0.6
--.SOO.Z. 1986-05-26T09:55:00.30 10.0 undecidable manual SG 311 0.0032 -0.2 0.5
--.DA9.Z. 1986-05-26T09:54:58.00 10.0 undecidable manual SG 324 0.0026 -0.25 0.4
--.ROB.Z. 1986-05-26T09:54:58.00 10.0 undecidable manual SG 81 0.0025 0.22 0.5
--.FIN.Z. 1986-05-26T09:54:57.30 10.0 undecidable manual PG 95 0.0046 -0.25 0.8
--.IMP.Z. 1986-05-26T09:54:56.30 10.0 undecidable manual PG 139 0.004 0.03 1.8
--.SOO.Z. 1986-05-26T09:54:54.80 10.0 undecidable manual PG 311 0.0032 0.14 1.7
--.DA9.Z. 1986-05-26T09:54:53.40 10.0 undecidable manual PG 324 0.0026 0.03 2.2
--.ROB.Z. 1986-05-26T09:54:53.40 10.0 undecidable manual PG 81 0.0025 0.31 0.7
--.STV.Z. 1986-05-26T09:54:52.20 10.0 undecidable manual SG 264 0.001 0.16 0.6
--.STV.Z. 1986-05-26T09:54:49.90 10.0 undecidable manual PG 264 0.001 0.12 1.9
--.ENR.Z. 1986-05-26T09:54:48.70 10.0 undecidable manual PG 232 0.0005 -0.24 1.1
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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