Earthquake with magnitude of M 2.1 on date 07-12-1993 and time 09:57:25 (UTC) in region Confine Italia Francia (FRANCIA)

A magnitude M 2.1 earthquake occured in region: Confine Italia Francia (FRANCIA), on

  • 07-12-1993 09:57:25 (UTC)
  • 07-12-1993 10:57:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1160, 7.4430 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 14 1485 1485
Entracque CN 14 774 2259
Vernante CN 16 1178 3437
Roaschia CN 17 107 3544
Valdieri CN 18 935 4479

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km S of Cuneo (56081 inhabitants)
43 Km NW of Sanremo (54807 inhabitants)
86 Km W of Savona (61345 inhabitants)
100 Km S of Moncalieri (57294 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 2.1 1993-12-07
09:57:25
44.116 7.443 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 201539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1993-12-07 09:57:25 ± 0.481
Latitude 44.1160 ± 0.0238
Longitude 7.4430 ± 0.0233
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 201539

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) 3236.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 311
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) 0.00227
Epicentral distance of station farthest from the epicenter (degree) 0.00923
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:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations
Type of magnitude M
Reference to an origin 201539
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
--.LMR.Z. 1993-12-07T09:58:01.70 10.0 undecidable manual SN 221 1.0212 0.71 0.1
--.LRG.Z. 1993-12-07T09:58:00.70 10.0 undecidable manual SG 230 1.0101 -0.02 0.8
--.FRF.Z. 1993-12-07T09:57:53.20 10.0 undecidable manual SG 226 0.7881 -0.3 0.6
--.LRG.Z. 1993-12-07T09:57:46.00 10.0 undecidable manual PG 230 1.0101 -0.02 1.9
--.LMR.Z. 1993-12-07T09:57:45.70 10.0 undecidable manual PN 221 1.0212 -0.48 0.7
--.FRF.Z. 1993-12-07T09:57:42.10 10.0 undecidable manual PG 226 0.7881 0.24 1.7
--.SBF.Z. 1993-12-07T09:57:35.60 10.0 undecidable manual SG 181 0.2553 -0.38 0.5
--.SBF.Z. 1993-12-07T09:57:32.00 10.0 undecidable manual PG 181 0.2553 0.26 1.7
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