Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 22-12-2016 and time 20:55:38 (Italy) in region Confine Svizzera Francia (SVIZZERA, FRANCIA)

A magnitude ML 1.8 earthquake occured in region: Confine Svizzera Francia (SVIZZERA, FRANCIA), on

  • 22-12-2016 19:55:38 (UTC)
  • 22-12-2016 20:55:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.2780, 6.8120 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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 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 		ML 1.8 2016-12-22
19:55:38		 46.2778 6.8117 10 2017-04-24
14:32:30		 Bollettino Sismico Italiano INGV 38537651
Reviewed
Rev100 		ML 1.8 2016-12-22
19:55:37		 46.3107 6.7617 10 2016-12-22
20:09:01		 Sala Sismica INGV-Roma 37432151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-12-22 19:55:38 ± 0.3
Latitude 46.2778 ± 0.0126
Longitude 6.8117 ± 0.0195
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 38537651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1810
Semi-minor axis of confidence ellipse (meter) 1100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 1810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 215
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.45775
Epicentral distance of station farthest from the epicenter (degree) 1.50726
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 38537651
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-04-24 14:32:30

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 37432151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-12-22 20:09:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.BNALP.HHZ. 2016-12-22T19:56:19.22 0.6 undecidable manual S 61 139.4604 50 0.31 44
GU.SATI.HHZ. 2016-12-22T19:56:06.84 0.6 undecidable manual S 118 92.7405 50 0.41 47
CH.MMK.HHZ. 2016-12-22T19:56:06.52 0.6 undecidable manual S 105 92.0412 50 0.28 48
RD.ORIF.BHE. 2016-12-22T19:56:06.27 0.6 undecidable manual P 206 167.3103 50 -0.03 42
GU.RRL.HHE. 2016-12-22T19:56:04.61 0.6 undecidable manual P 181 150.5382 50 0.88 35
CH.FUSIO.HHZ. 2016-12-22T19:56:03.17 0.3 undecidable manual P 81 143.0457 50 0.59 60
MN.BNI.HHN. 2016-12-22T19:56:02.13 0.6 undecidable manual P 184 136.3635 50 0.59 41
CH.BNALP.HHZ. 2016-12-22T19:56:01.65 0.6 undecidable manual P 61 139.4604 50 -0.38 43
IV.MRGE.HHZ. 2016-12-22T19:55:57.58 0.6 undecidable manual S 161 59.496 50 0.01 54
GU.REMY.HHZ. 2016-12-22T19:55:56.80 0.6 undecidable manual S 151 55.5999 50 0.3 52
GU.LSD.HHN. 2016-12-22T19:55:55.34 0.6 undecidable manual P 165 94.1391 50 0.31 48
CH.DIX.HHZ. 2016-12-22T19:55:54.94 0.6 undecidable manual S 115 50.8158 50 -0.29 52
GU.SATI.HHZ. 2016-12-22T19:55:54.34 0.3 undecidable manual P 118 92.7405 50 -0.48 69
CH.MMK.HHZ. 2016-12-22T19:55:54.92 0.3 undecidable manual P 105 92.0412 50 0.21 74
IV.MRGE.HHZ. 2016-12-22T19:55:49.28 0.1 positive manual P 161 59.496 50 -0.42 100
GU.REMY.HHZ. 2016-12-22T19:55:48.79 0.3 undecidable manual P 151 55.5999 50 -0.3 78
CH.DIX.HHZ. 2016-12-22T19:55:47.62 0.3 undecidable manual P 115 50.8158 50 -0.74 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.BNALP.HHE. ML:2.0 0.00006424975 2.2912 AML other m 2016-12-22T19:56:24.31
CH.DIX.HHN. ML:2.2 0.0004365 0.38 AML other m 2016-12-22T19:55:55.26
CH.DIX.HHE. ML:2.0 0.00027649999999999994 0.36 AML other m 2016-12-22T19:55:55.14
IV.MRGE.HHN. ML:1.7 0.00009855 0.66 AML other m 2016-12-22T19:56:00.77
IV.MRGE.HHE. ML:1.7 0.00010250000000000001 0.3 AML other m 2016-12-22T19:55:58.14
GU.REMY.HHN. ML:1.6 0.0000844 0.74 AML other m 2016-12-22T19:56:01.85
GU.REMY.HHE. ML:1.5 0.00007145 0.38 AML other m 2016-12-22T19:56:00.23
GU.SATI.HHN. ML:1.6 0.000039366885 3.2128 AML other m 2016-12-22T19:56:09.55
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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