Earthquake with magnitude of Md 2.2 on date 28-10-1988 and time 11:51:13 (Italy) in region 2 km SW Roaschia (CN)

A magnitude Md 2.2 earthquake occured in region: 2 km SW Roaschia (CN), on

  • 28-10-1988 10:51:13 (UTC)
  • 28-10-1988 11:51:13 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2570, 7.4470 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
Roaschia CN 2 107 107
Entracque CN 4 774 881
Valdieri CN 5 935 1816
Robilante CN 7 2306 4122
Vernante CN 7 1178 5300
Roccavione CN 7 2761 8061
Moiola CN 8 234 8295
Borgo San Dalmazzo CN 9 12468 20763
Gaiola CN 9 582 21345
Roccasparvera CN 10 741 22086
Valloriate CN 11 109 22195
Rittana CN 11 109 22304
Vignolo CN 12 2600 24904
Boves CN 12 9835 34739
Limone Piemonte CN 12 1485 36224
Demonte CN 14 2003 38227
Cervasca CN 14 5013 43240
Bernezzo CN 15 4104 47344
Peveragno CN 16 5543 52887
Cuneo CN 17 56081 108968
Valgrana CN 18 786 109754
Caraglio CN 18 6836 116590
Aisone CN 19 248 116838
Monterosso Grana CN 20 505 117343

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SW of Cuneo (56081 inhabitants)
55 Km NW of Sanremo (54807 inhabitants)
83 Km W of Savona (61345 inhabitants)
85 Km S of Moncalieri (57294 inhabitants)
93 Km S of Torino (890529 inhabitants)
93 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
Bulletin
Rev1000
Md 2.2
ML-VAX 1.5
1988-10-28
10:51:13
44.257 7.447 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 79949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1988-10-28 10:51:13 ± 0.842
Latitude 44.2570 ± 0.0574
Longitude 7.4470 ± 0.0411
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 79949

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) 7175.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 251
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00251
Epicentral distance of station farthest from the epicenter (degree) 0.00866
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 79949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 18:15:13

ML:1.5

Field Value
Value 1.5
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 79949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BNI.Z. 1988-10-28T10:51:46.68 10.0 undecidable manual SG 325 0.9657 0.61 0.4
--.CKI.Z. 1988-10-28T10:51:34.11 10.0 undecidable manual SG 74 0.6105 -0.79 0.3
--.BNI.Z. 1988-10-28T10:51:31.52 10.0 undecidable manual PG 325 0.9657 -0.66 0.8
--.CKI.Z. 1988-10-28T10:51:26.25 10.0 undecidable manual PG 74 0.6105 0.52 1.4
--.DOI.Z. 1988-10-28T10:51:24.39 10.0 undecidable manual SG 329 0.2775 0.11 0.9
--.DOI.Z. 1988-10-28T10:51:19.68 10.0 undecidable manual PG 329 0.2775 0.08 2.3
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download