Earthquake with magnitude of ML 1.0 on date 31-05-2020 and time 11:34:02 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 1.0 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 31-05-2020 09:34:02 (UTC)
  • 31-05-2020 11:34:02 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.4080, 8.5500 at 12 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Formazza VB 10 445 445

Municipalities with at least 50000 inhabitants

An earthquake occurred to
69 Km NW of Varese (80799 inhabitants)
78 Km NW of Como (84495 inhabitants)
85 Km N of Gallarate (53343 inhabitants)
91 Km N of Busto Arsizio (83106 inhabitants)
95 Km NW of Legnano (60262 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 1.0 2020-05-31
09:34:02
46.4078 8.5498 12 2020-05-31
09:43:18
Sala Sismica INGV-Roma 79746751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-31 09:34:02 ± 0.12
Latitude 46.4078 ± 0.0072
Longitude 8.5498 ± 0.0091
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79746751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 149
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 157
Circular confidence region, given by single value of horizontal uncertainty (meter) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 102
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.05490
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 79746751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-31 09:43:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CR.STON.BHZ. 2020-05-31T09:36:01.22 3.0 undecidable manual Pn 7.68 0
IV.BRSN.EHZ. 2020-05-31T09:35:49.74 3.0 undecidable manual Sg 4.25 0
IV.SGG.HHZ. 2020-05-31T09:35:46.42 3.0 undecidable manual Pn 3.78 0
IV.RMP.HHZ. 2020-05-31T09:35:38.36 3.0 negative manual Pg 10.34 0
IV.MNTT.EHZ. 2020-05-31T09:35:33.99 3.0 negative manual Pg 14.12 0
IV.IMI.HHZ. 2020-05-31T09:35:23.87 3.0 undecidable manual Sg -0.51 0
IV.MGAB.HHZ. 2020-05-31T09:35:23.62 3.0 negative manual Pg 11.58 0
IV.CRTC.HHZ. 2020-05-31T09:35:21.31 3.0 undecidable manual Pg 13.38 0
IV.FDMO.HHZ. 2020-05-31T09:35:16.21 3.0 undecidable manual Pn -0.49 0
IV.CSNT.HHZ. 2020-05-31T09:35:09.40 3.0 undecidable manual Pg 8.33 0
IV.RIBO.EHZ.01 2020-05-31T09:35:08.62 3.0 undecidable manual Pg 2.52 0
IV.IMI.HHZ. 2020-05-31T09:34:46.97 3.0 undecidable manual Pg 1.54 0
GU.RNCA.HHZ. 2020-05-31T09:34:34.71 3.0 undecidable manual Pn -4.24 0
CH.DIX.HHZ. 2020-05-31T09:34:29.57 0.6 undecidable manual S 248 94.8384 91 -0.49 37
GU.SATI.HHZ. 2020-05-31T09:34:25.63 0.3 undecidable manual S 222 78.9654 91 -0.19 63
CH.MUGIO.HHZ. 2020-05-31T09:34:22.04 0.3 undecidable manual S 145 65.8896 91 -0.28 64
GU.CIRO.HHZ. 2020-05-31T09:34:22.12 0.3 undecidable manual P 221 117.0939 91 0.37 60
GU.TRAV.HHZ. 2020-05-31T09:34:21.73 0.6 undecidable manual P 212 116.994 91 -0.01 41
IV.VARE.HHE. 2020-05-31T09:34:20.96 0.3 undecidable manual S 164 62.2932 92 -0.4 61
MN.TUE.HHZ. 2020-05-31T09:34:20.69 0.3 undecidable manual S 83 61.3941 92 -0.44 63
CH.MMK.HHE. 2020-05-31T09:34:20.34 0.6 undecidable manual S 229 59.8956 92 -0.4 41
CH.DIX.HHZ. 2020-05-31T09:34:18.95 0.6 undecidable manual P 248 94.8384 91 0.63 40
CH.BNALP.HHE. 2020-05-31T09:34:18.10 0.3 undecidable manual S 350 52.2033 92 -0.57 61
GU.SATI.HHZ. 2020-05-31T09:34:16.02 0.3 undecidable manual P 222 78.9654 91 0.15 68
CH.MUGIO.HHZ. 2020-05-31T09:34:14.20 0.3 undecidable manual P 145 65.8896 91 0.35 67
IV.VARE.HHE. 2020-05-31T09:34:13.82 0.6 undecidable manual P 164 62.2932 92 0.52 43
MN.TUE.HHZ. 2020-05-31T09:34:13.84 0.3 undecidable manual P 83 61.3941 92 0.68 62
CH.MMK.HHE. 2020-05-31T09:34:12.69 0.6 undecidable manual P 229 59.8956 92 -0.25 43
CH.BNALP.HHE. 2020-05-31T09:34:12.08 0.3 undecidable manual P 350 52.2033 92 0.33 68
CH.FUSIO.HHZ. 2020-05-31T09:34:07.33 0.3 undecidable manual S 59 10.0788 128 -0.36 71
CH.FUSIO.HHZ. 2020-05-31T09:34:05.61 0.1 undecidable manual P 59 10.0788 128 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.TUE.HHN. ML:1.0 0.000020950000000000004 1.76 AML other m 2020-05-31T09:34:20.98
MN.TUE.HHE. ML:0.9 0.00001515 0.72 AML other m 2020-05-31T09:34:21.59
CH.MUGIO.HHN. ML:1.3 0.00003275 0.46 AML other m 2020-05-31T09:34:22.68
CH.MUGIO.HHE. ML:1.0 0.0000224 0.34 AML other m 2020-05-31T09:34:22.48
GU.SATI.HHN. ML:0.9 0.000009695 0.9 AML other m 2020-05-31T09:34:26.81
GU.SATI.HHE. ML:0.9 0.000012295 1.2 AML other m 2020-05-31T09:34:27.09
CH.FUSIO.HHE. ML:1.1 0.00013860929999999998 0.192 AML other m 2020-05-31T09:34:07.50
CH.FUSIO.HHN. ML:1.3 0.00024006519999999999 0.1088 AML other m 2020-05-31T09:34:07.48
MN.TUE.HNE. ML:0.7 0.000012230009999999999 0.1792 AML other m 2020-05-31T09:34:21.11
MN.TUE.HNN. ML:1.1 0.00002559414535 0.2432 AML other m 2020-05-31T09:34:21.10
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