Earthquake with magnitude of M 2.3 on date 18-10-1993 and time 03:53:29 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude M 2.3 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 18-10-1993 03:53:29 (UTC)
  • 18-10-1993 04:53:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.7750, 6.7320 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
Claviere TO 18 214 214

Municipalities with at least 50000 inhabitants

An earthquake occurred to
78 Km NW of Cuneo (56081 inhabitants)
79 Km W of Moncalieri (57294 inhabitants)
82 Km W 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
M 2.3 1993-10-18
03:53:29
44.775 6.732 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 198359
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-10-18 03:53:29 ± 0.822
Latitude 44.7750 ± 0.0251
Longitude 6.7320 ± 0.0675
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 198359

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) 6018.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 238
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) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.00130
Epicentral distance of station farthest from the epicenter (degree) 0.00469
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

M:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 198359
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 09:48:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.BHB.Z. 1993-10-18T03:53:43.63 10.0 undecidable manual SG 81 0.3774 -0.32 0.5
--.PZZ.Z. 1993-10-18T03:53:43.45 10.0 undecidable manual SG 135 0.3663 -0.36 0.6
--.RSP.Z. 1993-10-18T03:53:42.99 10.0 undecidable manual PG 44 0.5217 2.3 0.1
--.BHB.Z. 1993-10-18T03:53:38.10 10.0 undecidable manual PG 81 0.3774 0.13 1.7
--.PZZ.Z. 1993-10-18T03:53:37.91 10.0 undecidable manual PG 135 0.3663 0.03 1.7
--.RRL.Z. 1993-10-18T03:53:35.95 10.0 undecidable manual SG 14 0.1443 -0.55 0.3
--.RRL.Z. 1993-10-18T03:53:33.47 10.0 undecidable manual PG 14 0.1443 -0.19 1.3
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