Earthquake with magnitude of Md 2.0 on date 28-05-1987 and time 15:00:57 (UTC) in region 5 km W Bellino (CN)

A magnitude Md 2.0 earthquake occured in region: 5 km W Bellino (CN), on

  • 28-05-1987 15:00:57 (UTC)
  • 28-05-1987 17:00:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.57, 6.95 at 11 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
Bellino CN 6 109 109
Pontechianale CN 8 179 288
Casteldelfino CN 10 157 445
Acceglio CN 11 162 607
Elva CN 12 97 704
Prazzo CN 13 170 874
Stroppo CN 16 103 977
Canosio CN 17 80 1057
Marmora CN 17 68 1125
Sampeyre CN 19 1022 2147
Macra CN 20 59 2206

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km W of Cuneo (56081 inhabitants)
75 Km SW of Moncalieri (57294 inhabitants)
80 Km SW 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
Bulletin
Rev1000
Md 2.0 1987-05-28
15:00:57
44.57 6.95 11 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 48109
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1987-05-28 15:00:57 ± 0.336
Latitude 44.57 ± 0.03
Longitude 6.95 ± 0.04
Depth (km) 11 ± 6 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 48109

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) 4287.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 201
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
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) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.00372
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 48109
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:47:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.STV.Z. 1987-05-28T15:01:12.10 10.0 undecidable manual SG 139 0.0037 -1.06 0
--.RRL.Z. 1987-05-28T15:01:10.80 10.0 undecidable manual SG 341 0.0032 -0.56 0.3
--.DOI.Z. 1987-05-28T15:01:06.50 10.0 undecidable manual SG 108 0.0019 -0.28 1
--.STV.Z. 1987-05-28T15:01:06.80 10.0 undecidable manual PG 139 0.0037 0.16 1.5
--.RRL.Z. 1987-05-28T15:01:05.60 10.0 undecidable manual PG 341 0.0032 0 1.7
--.DOI.Z. 1987-05-28T15:01:03.50 10.0 undecidable manual PG 108 0.0019 0.55 0.8
--.PZZ.Z. 1987-05-28T15:01:03.60 10.0 undecidable manual SG 122 0.0011 -0.23 1
--.PZZ.Z. 1987-05-28T15:01:01.50 10.0 undecidable manual PG 122 0.0011 0.25 1.7
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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