Earthquake with magnitude of M 2.2 on date 27-10-1990 and time 09:41:10 (UTC) in region 6 km W Limone Piemonte (CN)

A magnitude M 2.2 earthquake occured in region: 6 km W Limone Piemonte (CN), on

  • 27-10-1990 09:41:10 (UTC)
  • 27-10-1990 10:41:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1760, 7.5060 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
Limone Piemonte CN 6 1485 1485
Vernante CN 8 1178 2663
Entracque CN 11 774 3437
Roaschia CN 11 107 3544
Robilante CN 13 2306 5850
Valdieri CN 14 935 6785
Roccavione CN 16 2761 9546
Borgo San Dalmazzo CN 17 12468 22014
Boves CN 18 9835 31849
Moiola CN 19 234 32083
Roccasparvera CN 19 741 32824
Peveragno CN 19 5543 38367
Gaiola CN 20 582 38949

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km S of Cuneo (56081 inhabitants)
45 Km NW of Sanremo (54807 inhabitants)
79 Km W of Savona (61345 inhabitants)
93 Km S of Moncalieri (57294 inhabitants)
98 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
M 2.2 1990-10-27
09:41:10
44.176 7.506 10 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 129479
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-10-27 09:41:10 ± 0.574
Latitude 44.1760 ± 0.0121
Longitude 7.5060 ± 0.0537
Depth (km) 10 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 129479

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) 4488.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
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) 0.00283
Epicentral distance of station farthest from the epicenter (degree) 0.01279
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

M:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 129479
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:42:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.LPG.Z. 1990-10-27T09:41:55.00 10.0 undecidable manual SN 338 1.4208 -0.03 0.7
--.LMR.Z. 1990-10-27T09:41:48.00 10.0 undecidable manual SN 220 1.11 0.54 0.2
--.LRG.Z. 1990-10-27T09:41:47.20 10.0 undecidable manual SN 229 1.0878 -0.01 0.7
--.FRF.Z. 1990-10-27T09:41:39.60 10.0 undecidable manual SG 225 0.8769 -0.94 0.4
--.LPG.Z. 1990-10-27T09:41:36.20 10.0 undecidable manual PN 338 1.4208 -0.02 1.8
--.LMR.Z. 1990-10-27T09:41:32.00 10.0 undecidable manual PN 220 1.11 0.15 1.8
--.LRG.Z. 1990-10-27T09:41:31.60 10.0 undecidable manual PN 229 1.0878 -0.1 2.1
--.FRF.Z. 1990-10-27T09:41:28.30 10.0 undecidable manual PG 225 0.8769 0.45 1.2
--.SBF.Z. 1990-10-27T09:41:23.00 10.0 undecidable manual SG 189 0.3108 0.3 0.6
--.SBF.Z. 1990-10-27T09:41:16.70 10.0 undecidable manual PG 189 0.3108 -0.85 0.6
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