Earthquake with magnitude of Md 2.0 on date 15-05-1987 and time 16:02:06 (Italy) in region 1 km W Roccavione (CN)

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

  • 15-05-1987 14:02:06 (UTC)
  • 15-05-1987 16:02:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.32, 7.47 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
Roccavione CN 1 2761 2761
Borgo San Dalmazzo CN 2 12468 15229
Roccasparvera CN 4 741 15970
Robilante CN 4 2306 18276
Vignolo CN 5 2600 20876
Roaschia CN 5 107 20983
Gaiola CN 6 582 21565
Moiola CN 7 234 21799
Boves CN 7 9835 31634
Rittana CN 7 109 31743
Valdieri CN 7 935 32678
Cervasca CN 8 5013 37691
Valloriate CN 8 109 37800
Bernezzo CN 9 4104 41904
Vernante CN 9 1178 43082
Entracque CN 10 774 43856
Cuneo CN 11 56081 99937
Peveragno CN 12 5543 105480
Caraglio CN 12 6836 112316
Valgrana CN 13 786 113102
Demonte CN 14 2003 115105
Beinette CN 15 3423 118528
Limone Piemonte CN 15 1485 120013
Monterosso Grana CN 16 505 120518
Montemale di Cuneo CN 16 241 120759
Chiusa di Pesio CN 17 3676 124435
Dronero CN 19 7035 131470
Pradleves CN 19 250 131720
Castelletto Stura CN 20 1351 133071
Margarita CN 20 1441 134512
Aisone CN 20 248 134760
Villar San Costanzo CN 20 1547 136307

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km SW of Cuneo (56081 inhabitants)
60 Km NW of Sanremo (54807 inhabitants)
78 Km S of Moncalieri (57294 inhabitants)
80 Km W of Savona (61345 inhabitants)
86 Km S of Torino (890529 inhabitants)
87 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 1987-05-15
14:02:06
44.32 7.47 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 47159
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-15 14:02:06 ± 0.141
Latitude 44.32 ± 0.01
Longitude 7.47 ± 0.01
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 47159

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) 1633.4
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 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00105
Epicentral distance of station farthest from the epicenter (degree) 0.00834
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

Md:2

Field Value
Value 2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 47159
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:46:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.BNI.Z. 1987-05-15T14:02:37.00 10.0 undecidable manual SG 322 0.0083 -0.84 0.2
--.CKI.Z. 1987-05-15T14:02:27.50 10.0 undecidable manual SG 79 0.0053 0.61 0.5
--.IMI.Z. 1987-05-15T14:02:24.10 10.0 undecidable manual SG 142 0.0045 -0.2 0.6
--.BNI.Z. 1987-05-15T14:02:24.00 10.0 undecidable manual PG 322 0.0083 -0.46 0.9
--.FIN.Z. 1987-05-15T14:02:24.40 10.0 undecidable manual SG 101 0.0048 -0.96 0.1
--.CKI.Z. 1987-05-15T14:02:19.50 10.0 undecidable manual PG 79 0.0053 1.37 0.1
--.PZZ.Z. 1987-05-15T14:02:18.60 10.0 undecidable manual SG 305 0.0029 0.07 0.8
--.DOI.Z. 1987-05-15T14:02:16.00 10.0 undecidable manual SG 319 0.0022 -0.04 1.2
--.IMI.Z. 1987-05-15T14:02:16.60 10.0 undecidable manual PG 142 0.0045 -0.04 1.8
--.ROB.Z. 1987-05-15T14:02:16.80 10.0 undecidable manual SG 92 0.0025 -0.5 0.4
--.FIN.Z. 1987-05-15T14:02:16.90 10.0 undecidable manual PG 101 0.0048 -0.35 1.3
--.PZZ.Z. 1987-05-15T14:02:13.30 10.0 undecidable manual PG 305 0.0029 0 2
--.ROB.Z. 1987-05-15T14:02:12.80 10.0 undecidable manual PG 92 0.0025 0.2 2
--.DOI.Z. 1987-05-15T14:02:12.00 10.0 undecidable manual PG 319 0.0022 0.13 2
--.STV.Z. 1987-05-15T14:02:11.60 10.0 undecidable manual SG 237 0.0011 -0.35 0.7
--.STV.Z. 1987-05-15T14:02:10.00 10.0 undecidable manual PG 237 0.0011 0.49 1.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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