Earthquake with magnitude of ML 1.6 on date 23-11-2018 and time 00:52:46 (UTC) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.6 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 23-11-2018 00:52:46 (UTC)
  • 23-11-2018 01:52:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.1700, 7.4350 at 13 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

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 1.6 2018-11-23
00:52:46
46.1695 7.4347 13 2019-06-04
09:16:07
Bollettino Sismico Italiano INGV 64838821
Reviewed
Rev100
ML 1.9 2018-11-23
00:52:46
46.1733 7.4372 14 2018-11-23
00:59:37
Sala Sismica INGV-Roma 63299701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-11-23 00:52:46 ± 0.18
Latitude 46.1695 ± 0.0108
Longitude 7.4347 ± 0.0065
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 64838821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1102
Semi-minor axis of confidence ellipse (meter) 506
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 162
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 255
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) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.09083
Epicentral distance of station farthest from the epicenter (degree) 0.47664
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 63299701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-11-23 00:59:37

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 64838821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-01-21 11:24:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRGE.HHZ. 2018-11-23T00:53:03.31 0.6 undecidable manual S 213 52.9026 93 0.2 45
GU.SATI.HHN. 2018-11-23T00:53:01.49 0.6 undecidable manual S 134 46.7199 93 0.03 47
GU.REMY.HHZ. 2018-11-23T00:53:00.34 0.3 undecidable manual S 210 42.624 94 -0.02 71
CH.MMK.HHZ. 2018-11-23T00:53:00.24 0.3 undecidable manual S 108 42.8238 94 -0.18 69
IV.MRGE.HHZ. 2018-11-23T00:52:55.95 0.3 undecidable manual P 213 52.9026 93 -0.15 68
GU.SATI.HHN. 2018-11-23T00:52:55.28 0.3 undecidable manual P 134 46.7199 93 0.13 69
GU.REMY.HHZ. 2018-11-23T00:52:54.39 0.1 undecidable manual P 210 42.624 94 -0.12 93
CH.MMK.HHZ. 2018-11-23T00:52:54.86 0.6 undecidable manual P 108 42.8238 94 0.31 44
CH.DIX.HHZ. 2018-11-23T00:52:52.12 0.3 undecidable manual S 192 10.0788 131 0.08 74
CH.DIX.HHZ. 2018-11-23T00:52:49.64 0.1 negative manual P 192 10.0788 131 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.REMY.HHE. ML:1.5 0.00010528706 0.2 AML other m 2018-11-23T00:53:01.94
GU.REMY.HHN. ML:1.6 0.00012975699 0.22 AML other m 2018-11-23T00:53:01.96
GU.SATI.HHN. ML:1.0 0.000032322290000000007 0.08 AML other m 2018-11-23T00:53:02.60
GU.SATI.HHE. ML:1.2 0.00003822816499999999 0.28 AML other m 2018-11-23T00:53:02.49
IV.MRGE.HHE. ML:2.1 0.00027617485 0.26 AML other m 2018-11-23T00:53:04.53
IV.MRGE.HHN. ML:1.8 0.00015061205 0.26 AML other m 2018-11-23T00:53:04.44
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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