Earthquake with magnitude of ML 1.2 on date 03-07-2021 and time 18:10:32 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.2 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 03-07-2021 16:10:32 (UTC)
  • 03-07-2021 18:10:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.213, 7.768 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
93 Km W of Varese (80799 inhabitants)
Recent and historical seismicity
Seismic hazard
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
ML 1.2 2021-07-03
46.2128 7.7683 8 2021-07-03
Sala Sismica INGV-Roma 92195781
Preferred location and magnitude until now.
Origin information


Field Value
Time (UTC) 2021-07-03 16:10:32 ± 0.23
Latitude 46.2128 ± 0.0108
Longitude 7.7683 ± 0.0143
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92195781


Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1024
Semi-minor axis of confidence ellipse (meter) 967
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 163
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020
Confidence level of the uncertainty (%) 68


Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.45
Epicentral distance of station closest to the epicenter (degree) 0.21134
Epicentral distance of station farthest from the epicenter (degree) 0.87324
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information


Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 92195781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-03 16:19:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.BNALP.HHZ. 2021-07-03T16:10:57.99 0.3 undecidable manual S 34 0.7977 50 -0.9 52
GU.TRAV.HHZ. 2021-07-03T16:10:55.75 0.6 undecidable manual S 181 0.7006 50 -0.26 44
CH.FUSIO.HHZ. 2021-07-03T16:10:54.32 0.6 undecidable manual S 68 0.6628 50 -0.59 40
GU.CIRO.HHZ. 2021-07-03T16:10:53.32 0.3 undecidable manual S 193 0.6259 50 -0.5 63
GU.LSD.HHZ. 2021-07-03T16:10:49.18 0.1 undecidable manual P 211 0.8732 50 0.28 84
CH.BNALP.HHZ. 2021-07-03T16:10:48.10 0.3 undecidable manual P 34 0.7977 50 0.5 61
GU.TRAV.HHZ. 2021-07-03T16:10:46.47 0.3 undecidable manual P 181 0.7006 50 0.52 62
GU.CIRO.HHZ. 2021-07-03T16:10:45.17 0.6 undecidable manual P 193 0.6259 50 0.49 42
CH.FUSIO.HHZ. 2021-07-03T16:10:45.52 0.1 undecidable manual P 68 0.6628 50 0.21 89
IV.MRGE.HHZ. 2021-07-03T16:10:45.72 0.3 undecidable manual P 228 0.661 50 0.44 63
CH.DIX.HHZ. 2021-07-03T16:10:42.65 0.3 undecidable manual S 242 0.2824 105 -0.8 60
CH.MMK.HHZ. 2021-07-03T16:10:40.41 0.1 undecidable manual S 140 0.2113 109 -0.42 93
CH.DIX.HHZ. 2021-07-03T16:10:38.70 0.1 undecidable manual P 242 0.2824 105 0.01 100
CH.MMK.HHZ. 2021-07-03T16:10:37.69 0.1 positive manual P 140 0.2113 109 0.51 91
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.MMK.HHN. ML:0.6 2.58E-5 0.5 AML other m 2021-07-03T16:10:40.49
CH.MMK.HHE. ML:0.6 2.305E-5 0.3 AML other m 2021-07-03T16:10:40.49
CH.DIX.HHN. ML:1.8 0.000283 0.78 AML other m 2021-07-03T16:10:42.80
CH.DIX.HHE. ML:1.6 0.000176 0.38 AML other m 2021-07-03T16:10:43.29
IV.MRGE.HHN. ML:1.3 3.05E-5 0.88 AML other m 2021-07-03T16:10:54.20
GU.CIRO.HHE. ML:1.2 2.55E-5 0.9 AML other m 2021-07-03T16:10:55.77
GU.TRAV.HHE. ML:1.4 3.5E-5 0.5 AML other m 2021-07-03T16:10:56.84
GU.CIRO.HHN. ML:1.1 1.765E-5 1.48 AML other m 2021-07-03T16:10:56.12
CH.FUSIO.HHN. ML:1.1 2.15E-5 0.3 AML other m 2021-07-03T16:10:57.14
CH.FUSIO.HHE. ML:1.1 1.99E-5 1.4 AML other m 2021-07-03T16:10:57.97
IV.MRGE.HHE. ML:1.2 2.545E-5 1.3 AML other m 2021-07-03T16:10:59.05
GU.TRAV.HHN. ML:1.4 3.735E-5 0.2 AML other m 2021-07-03T16:11:01.70
GU.LSD.HHE. ML:1.2 1.291E-5 0.38 AML other m 2021-07-03T16:11:02.02
GU.LSD.HHN. ML:1 1.0155E-5 0.72 AML other m 2021-07-03T16:11:02.38
CH.BNALP.HHE. ML:1.1 1.665E-5 0.7 AML other m 2021-07-03T16:11:06.61
CH.BNALP.HHN. ML:1.1 1.35E-5 0.32 AML other m 2021-07-03T16:11:06.39
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download