Earthquake with magnitude of Md 2.0 on date 04-07-1988 and time 16:02:27 (UTC) in region 2 km NE Sampeyre (CN)

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

  • 04-07-1988 16:02:27 (UTC)
  • 04-07-1988 18:02:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.6, 7.21 at 13 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
Sampeyre CN 2 1022 1022
Frassino CN 6 265 1287
Oncino CN 9 76 1363
Melle CN 10 292 1655
Sanfront CN 11 2395 4050
Ostana CN 11 83 4133
Casteldelfino CN 11 157 4290
Macra CN 11 59 4349
Elva CN 11 97 4446
Paesana CN 11 2784 7230
Gambasca CN 12 371 7601
Stroppo CN 12 103 7704
Crissolo CN 12 168 7872
Valmala CN 13 52 7924
Brossasco CN 13 1084 9008
Rifreddo CN 13 1078 10086
San Damiano Macra CN 13 430 10516
Celle di Macra CN 13 100 10616
Martiniana Po CN 13 734 11350
Isasca CN 14 76 11426
Pontechianale CN 14 179 11605
Cartignano CN 15 190 11795
Bellino CN 15 109 11904
Venasca CN 15 1437 13341
Brondello CN 16 290 13631
Revello CN 16 4262 17893
Envie CN 16 2074 19967
Barge CN 17 7774 27741
Roccabruna CN 17 1585 29326
Prazzo CN 18 170 29496
Pagno CN 18 585 30081
Marmora CN 18 68 30149
Castellar CN 18 295 30444
Canosio CN 19 80 30524
Villar San Costanzo CN 19 1547 32071
Rossana CN 19 908 32979
Dronero CN 19 7035 40014
Bagnolo Piemonte CN 20 6024 46038

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of Cuneo (56081 inhabitants)
59 Km SW of Moncalieri (57294 inhabitants)
65 Km SW of Torino (890529 inhabitants)
86 Km W of Asti (76202 inhabitants)
98 Km NW of Sanremo (54807 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 1988-07-04
16:02:27
44.6 7.21 13 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 72779
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-07-04 16:02:27 ± 0.216
Latitude 44.60 ± 0.01
Longitude 7.21 ± 0.02
Depth (km) 13 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 72779

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) 1817.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00081
Epicentral distance of station farthest from the epicenter (degree) 0.00502
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 72779
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:08:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.RSP.Z. 1988-07-04T16:02:47.50 10.0 undecidable manual SG 3 0.0049 -0.05 0.6
--.ROB.Z. 1988-07-04T16:02:39.20 10.0 undecidable manual PG 121 0.005 -0.09 1.3
--.RSP.Z. 1988-07-04T16:02:39.20 10.0 undecidable manual PG 3 0.0049 0 1.6
--.SOO.Z. 1988-07-04T16:02:33.80 10.0 undecidable manual SG 219 0.0011 -0.19 0.6
--.DOI.Z. 1988-07-04T16:02:33.21 10.0 undecidable manual SG 164 0.0008 -0.23 0.3
--.DOI.Z. 1988-07-04T16:02:31.63 10.0 undecidable manual PG 164 0.0008 0.57 0.4
--.SOO.Z. 1988-07-04T16:02:31.40 10.0 undecidable manual PG 219 0.0011 0.02 2.3
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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