Earthquake with magnitude of Md 2.1 on date 16-03-1985 and time 09:59:35 (Italy) in region Confine Italia Francia (FRANCIA)

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

  • 16-03-1985 08:59:35 (UTC)
  • 16-03-1985 09:59:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.09, 7.38 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
Entracque CN 17 774 774

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km SW of Cuneo (56081 inhabitants)
44 Km NW of Sanremo (54807 inhabitants)
91 Km W of Savona (61345 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 2.1 1985-03-16
08:59:35
44.09 7.38 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 3299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-03-16 08:59:35 ± 0.651
Latitude 44.09 ± 0.03
Longitude 7.38 ± 0.03
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 3299

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) 4195.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 284
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00146
Epicentral distance of station farthest from the epicenter (degree) 0.00648
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.1

Field Value
Value 2.1
Uncertainty
Num. used stations 1
Type of magnitude Md
Reference to an origin 3299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:08:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.CK1.Z. 1985-03-16T08:59:59.80 10.0 undecidable manual SG 62 0.0065 -0.38 0.3
--.ROB.Z. 1985-03-16T08:59:50.70 10.0 undecidable manual SG 58 0.0036 0.49 0.3
--.CK1.Z. 1985-03-16T08:59:49.00 10.0 undecidable manual PG 62 0.0065 -0.56 0.4
--.ROB.Z. 1985-03-16T08:59:44.30 10.0 undecidable manual PG 58 0.0036 0.49 0.7
--.STV.Z. 1985-03-16T08:59:42.10 10.0 undecidable manual SG 347 0.0015 -0.19 0.9
--.STV.Z. 1985-03-16T08:59:39.30 10.0 positive manual PG 347 0.0015 0.06 3.4
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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