Earthquake with magnitude of ML 0.4 on date 01-12-2018 and time 05:46:22 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 0.4 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 01-12-2018 04:46:22 (UTC)
  • 01-12-2018 05:46:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.1670, 7.6520 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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

An earthquake occurred to
99 Km W of Varese (80799 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
Reviewed
Rev100
ML 0.4 2018-12-01
04:46:22
46.167 7.6518 9 2018-12-01
04:52:15
Sala Sismica INGV-Roma 63523271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-01 04:46:22 ± 0.28
Latitude 46.1670 ± 0.0162
Longitude 7.6518 ± 0.0078
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63523271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1802
Semi-minor axis of confidence ellipse (meter) 399
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 1800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 235
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.57107
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 63523271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-01 04:52:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.BNALP.HHZ. 2018-12-01T04:46:48.17 3.0 undecidable manual S 0
IV.MRGE.HHZ. 2018-12-01T04:46:42.14 0.1 undecidable manual S 226 63.3921 50 0.13 93
GU.REMY.HHZ. 2018-12-01T04:46:38.80 0.1 undecidable manual S 226 52.8027 50 -0.39 87
CH.BNALP.HHZ. 2018-12-01T04:46:37.66 3.0 undecidable manual P 0
GU.SATI.HHZ. 2018-12-01T04:46:35.09 0.1 undecidable manual S 153 36.4413 50 0.28 88
IV.MRGE.HHZ. 2018-12-01T04:46:33.71 0.1 undecidable manual P 226 63.3921 50 0.14 93
GU.REMY.HHZ. 2018-12-01T04:46:32.00 0.1 undecidable manual P 226 52.8027 50 0.05 94
CH.MMK.HHZ. 2018-12-01T04:46:31.51 0.1 undecidable manual S 118 27.2505 107 -0.45 93
CH.DIX.HHZ. 2018-12-01T04:46:29.76 0.1 undecidable manual S 243 21.0678 112 -0.17 99
GU.SATI.HHZ. 2018-12-01T04:46:29.87 0.1 undecidable manual P 153 36.4413 50 0.45 89
CH.MMK.HHZ. 2018-12-01T04:46:27.87 0.1 undecidable manual P 118 27.2505 107 0.1 100
CH.DIX.HHZ. 2018-12-01T04:46:26.63 0.1 undecidable manual P 243 21.0678 112 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.SATI.HHE. ML:0.4 0.000009728845 0.0992 AML other m 2018-12-01T04:46:35.68
GU.SATI.HHN. ML:0.4 0.0000083878025 0.0608 AML other m 2018-12-01T04:46:36.55
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