Earthquake with magnitude of Md 2.0 on date 05-02-1987 and time 11:30:44 (Italy) in region 1 km SW Moiola (CN)

A magnitude Md 2.0 earthquake occured in region: 1 km SW Moiola (CN), on

  • 05-02-1987 10:30:44 (UTC)
  • 05-02-1987 11:30:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.31, 7.38 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
Moiola CN 1 234 234
Valloriate CN 3 109 343
Gaiola CN 4 582 925
Valdieri CN 4 935 1860
Rittana CN 5 109 1969
Roccasparvera CN 6 741 2710
Demonte CN 7 2003 4713
Roaschia CN 7 107 4820
Entracque CN 8 774 5594
Roccavione CN 8 2761 8355
Borgo San Dalmazzo CN 9 12468 20823
Vignolo CN 9 2600 23423
Bernezzo CN 10 4104 27527
Robilante CN 10 2306 29833
Cervasca CN 11 5013 34846
Valgrana CN 11 786 35632
Monterosso Grana CN 12 505 36137
Caraglio CN 13 6836 42973
Aisone CN 13 248 43221
Boves CN 14 9835 53056
Vernante CN 14 1178 54234
Montemale di Cuneo CN 14 241 54475
Pradleves CN 15 250 54725
Cuneo CN 16 56081 110806
Vinadio CN 17 644 111450
Castelmagno CN 18 66 111516
Dronero CN 18 7035 118551
Peveragno CN 19 5543 124094
Roccabruna CN 19 1585 125679
Villar San Costanzo CN 19 1547 127226
Limone Piemonte CN 20 1485 128711

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SW of Cuneo (56081 inhabitants)
63 Km NW of Sanremo (54807 inhabitants)
81 Km SW of Moncalieri (57294 inhabitants)
87 Km W of Savona (61345 inhabitants)
88 Km S of Torino (890529 inhabitants)
92 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
Rev 1000 Md 2.0 1987-02-05
10:30:44
44.31 7.38 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 40569
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-02-05 10:30:44 ± 0.344
Latitude 44.31 ± 0.02
Longitude 7.38 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 40569

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) 3832.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 122
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
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) 0.00057
Epicentral distance of station farthest from the epicenter (degree) 0.00308
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 40569
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:40:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.ROB.Z. 1987-02-05T10:30:59.40 10.0 undecidable manual SG 91 0.0031 1.54 0.1
--.DA9.Z. 1987-02-05T10:30:54.00 10.0 undecidable manual SG 332 0.0019 0.42 0.8
--.SOO.Z. 1987-02-05T10:30:51.80 10.0 undecidable manual PG 314 0.0025 0.8 1.1
--.ROB.Z. 1987-02-05T10:30:51.60 10.0 undecidable manual PG 91 0.0031 -0.69 1.1
--.DA9.Z. 1987-02-05T10:30:49.00 10.0 undecidable manual PG 332 0.0019 -0.82 1.2
--.STV.Z. 1987-02-05T10:30:49.70 10.0 undecidable manual SG 213 0.0006 0.6 0.6
--.STV.Z. 1987-02-05T10:30:46.90 10.0 undecidable manual PG 213 0.0006 -0.34 2
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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