Earthquake with magnitude of ML 1.5 on date 02-12-2017 and time 01:40:04 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.5 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 02-12-2017 00:40:04 (UTC)
  • 02-12-2017 01:40:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.4940, 8.2330 at 8 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
Formazza VB 20 445 445

Municipalities with at least 50000 inhabitants

An earthquake occurred to
88 Km NW of Varese (80799 inhabitants)
100 Km NW of Como (84495 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 1.5 2017-12-02
00:40:04
46.4938 8.2332 8 2018-09-04
09:10:41
Bollettino Sismico Italiano INGV 55108411
Reviewed
Rev100
ML 1.5 2017-12-02
00:40:04
46.4947 8.2497 15 2017-12-02
00:50:56
Sala Sismica INGV-Roma 52282751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-12-02 00:40:04 ± 0.25
Latitude 46.4938 ± 0.0162
Longitude 8.2332 ± 0.0144
Depth (km) 8 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55108411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1441
Semi-minor axis of confidence ellipse (meter) 1298
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 12
Circular confidence region, given by single value of horizontal uncertainty (meter) 1440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 13
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.79950
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 55108411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-04 08:44:24

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 52282751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-12-02 00:50:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTRA.EHZ. 2017-12-02T00:41:27.98 3.0 positive manual Pn 1.52 0
IV.RM33.EHZ. 2017-12-02T00:41:25.39 3.0 undecidable manual Pn -2.36 0
IV.MGAB.HHZ. 2017-12-02T00:41:21.11 3.0 undecidable manual Pn 4.7 0
IV.MNTV.HNZ. 2017-12-02T00:41:17.85 3.0 undecidable manual Sg 1.16 0
IV.NDIM.HNZ. 2017-12-02T00:40:50.43 3.0 negative manual Pg 2.18 0
CH.MUGIO.HHZ. 2017-12-02T00:40:30.89 0.6 undecidable manual S 135 88.7445 50 -0.49 25
MN.TUE.HNE. 2017-12-02T00:40:29.88 0.6 undecidable manual S 91 85.1481 50 -0.53 15
CH.DIX.HHZ. 2017-12-02T00:40:27.77 0.6 undecidable manual S 234 78.1662 50 -0.77 22
GU.SATI.HHZ. 2017-12-02T00:40:26.56 0.6 undecidable manual S 202 74.0703 50 -0.91 23
MN.TUE.HNE. 2017-12-02T00:40:20.10 0.3 undecidable manual P 91 85.1481 50 0.59 64
CH.MUGIO.HHZ. 2017-12-02T00:40:20.43 0.3 undecidable manual P 135 88.7445 50 0.36 66
CH.BNALP.HHZ. 2017-12-02T00:40:18.58 0.6 undecidable manual S 19 44.2224 50 -0.92 3
CH.DIX.HHZ. 2017-12-02T00:40:18.60 0.1 undecidable manual P 234 78.1662 50 0.17 84
GU.SATI.HHZ. 2017-12-02T00:40:17.92 0.1 undecidable manual P 202 74.0703 50 0.11 87
CH.FUSIO.HHZ. 2017-12-02T00:40:15.65 0.6 undecidable manual S 97 33.1446 104 -0.83 34
CH.MMK.HHN. 2017-12-02T00:40:14.67 0.3 undecidable manual P 203 53.3022 50 0.06 67
CH.BNALP.HHZ. 2017-12-02T00:40:13.35 0.1 positive manual P 19 44.2224 50 0.14 62
CH.FUSIO.HHZ. 2017-12-02T00:40:11.53 0.1 undecidable manual P 97 33.1446 104 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.FUSIO.HHN. ML:1.4 0.0001076 0.12 AML other m 2017-12-02T00:40:16.17
CH.FUSIO.HHE. ML:0.8 0.0000293 1.1 AML other m 2017-12-02T00:40:16.14
CH.DIX.HHE. ML:1.8 0.000082 0.4 AML other m 2017-12-02T00:40:24.88
CH.DIX.HHN. ML:1.7 0.00007519999999999998 0.4 AML other m 2017-12-02T00:40:27.90
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download