Earthquake with magnitude of ML 1.1 on date 09-12-2019 and time 08:27:51 (Italy) in region Svizzera (SVIZZERA)

A magnitude ML 1.1 earthquake occured in region: Svizzera (SVIZZERA), on

  • 09-12-2019 07:27:51 (UTC)
  • 09-12-2019 08:27:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 46.71, 9.93 at 7 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

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical Seismicity
Seismic hazard
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire ( that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.1 2019-12-09
46.71 9.93 7 2019-12-09
Sala Sismica INGV-Roma 74470531
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2019-12-09 07:27:51 ± 0.11
Latitude 46.71 ± 0.01
Longitude 9.93 ± 0.01
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74470531


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 971
Semi-minor axis of confidence ellipse (meter) 413
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 970
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 136
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.59805
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information


Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 74470531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-09 07:41:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
MN.TUE.HHE. 2019-12-09T07:28:08.47 0.1 undecidable manual S 239 0.4641 50 -0.29 90
IV.MABI.HHZ. 2019-12-09T07:28:06.97 3.0 positive manual Pg -0.16 0
ST.CARE.EHZ. 2019-12-09T07:28:04.02 1.0 negative manual P 118 0.598 50 0.19 22
CH.BERNI.HHZ. 2019-12-09T07:28:03.58 0.3 undecidable manual S 168 0.3031 102 -0.01 74
CH.FUORN.HHZ. 2019-12-09T07:28:01.42 0.3 undecidable manual S 111 0.2464 105 -0.06 74
MN.TUE.HHE. 2019-12-09T07:28:01.85 0.1 undecidable manual P 239 0.4641 50 0.31 90
CH.BERNI.HHZ. 2019-12-09T07:27:58.74 0.6 undecidable manual P 168 0.3031 102 0.19 48
CH.FUORN.HHZ. 2019-12-09T07:27:57.07 0.6 negative manual P 111 0.2464 105 -0.27 47
CH.DAVOX.HHZ. 2019-12-09T07:27:55.42 0.1 undecidable manual S 335 0.0782 129 -0.15 100
CH.DAVOX.HHZ. 2019-12-09T07:27:54.11 0.1 negative manual P 335 0.0782 129 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.DAVOX.HHE. ML:2.2 0.0029370265 0.16 AML other m 2019-12-09T07:27:55.45
CH.DAVOX.HHN. ML:2 0.0018440661 0.1728 AML other m 2019-12-09T07:27:55.50
CH.FUORN.HHE. ML:0.7 2.819208E-5 0.2688 AML other m 2019-12-09T07:28:02.36
CH.FUORN.HHN. ML:1 4.847948E-5 0.3136 AML other m 2019-12-09T07:28:01.92
CH.BERNI.HHE. ML:1.1 5.988487E-5 0.2496 AML other m 2019-12-09T07:28:03.81
CH.BERNI.HHN. ML:1.1 5.0186395E-5 0.2304 AML other m 2019-12-09T07:28:04.03
ST.CARE.EHE. ML:0.9 1.74184035E-5 1.8432 AML other m 2019-12-09T07:28:32.84
ST.CARE.EHN. ML:1.1 2.45514E-5 1.0048 AML other m 2019-12-09T07:28:08.90
ST.CARE.HNE. ML:2.2 0.000301580895 0.544 AML other m 2019-12-09T07:28:13.05
ST.CARE.HNN. ML:2 0.00017133785 1.2992 AML other m 2019-12-09T07:28:04.52
IV.MABI.HHE. ML:0.9 7.734664E-6 0.1792 AML other m 2019-12-09T07:28:18.63
IV.MABI.HHN. ML:0.9 1.07032955E-5 0.1792 AML other m 2019-12-09T07:28:18.82
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download