Earthquake with magnitude of ML 1.7 on date 07-08-2020 and time 22:28:51 (Italy) in region Svizzera (SVIZZERA)

A magnitude ML 1.7 earthquake occured in region: Svizzera (SVIZZERA), on

  • 07-08-2020 20:28:51 (UTC)
  • 07-08-2020 22:28:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.9230, 9.1400 at 10 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

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
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.7 2020-08-07
20:28:51
46.9227 9.1402 10 2020-11-19
12:36:59
Bollettino Sismico Italiano INGV 82404061
Reviewed
Rev100
ML 1.8 2020-08-07
20:28:51
46.9302 9.1462 14 2020-08-07
20:40:22
Sala Sismica INGV-Roma 81747521
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-07 20:28:51 ± 0.13
Latitude 46.9227 ± 0.0108
Longitude 9.1402 ± 0.0066
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 82404061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1125
Semi-minor axis of confidence ellipse (meter) 594
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 6
Circular confidence region, given by single value of horizontal uncertainty (meter) 1120.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.20684
Epicentral distance of station farthest from the epicenter (degree) 1.70691
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 81747521
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-08-07 20:40:22

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 82404061
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-08-28 09:53:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2020-08-07T20:29:21.91 1.0 undecidable manual P 215 189.4659 38 0.33 0
CH.BERNI.HHZ. 2020-08-07T20:29:17.24 0.6 undecidable manual S 130 87.7455 50 -0.12 11
GU.SATI.HHZ. 2020-08-07T20:29:16.94 1.0 undecidable manual P 220 151.5372 50 0.83 0
ST.CARE.EHE. 2020-08-07T20:29:13.86 0.6 undecidable manual P 114 130.5693 50 0.99 0
IV.VARE.HHZ. 2020-08-07T20:29:12.76 0.3 undecidable manual P 194 120.3906 50 1.45 0
SI.MOSI.HHE. 2020-08-07T20:29:10.94 0.6 undecidable manual P 107 112.2987 50 0.87 0
CH.MUGIO.HHZ. 2020-08-07T20:29:10.63 0.6 undecidable manual P 184 111.2997 50 0.73 0
CH.FUSIO.HHZ. 2020-08-07T20:29:10.46 0.3 undecidable manual S 215 63.2922 50 -0.37 72
CH.DAVOX.HHZ. 2020-08-07T20:29:09.48 0.6 undecidable manual S 105 58.2972 50 0 53
IV.BRMO.HHE. 2020-08-07T20:29:09.79 0.3 undecidable manual P 117 106.0161 50 0.69 0
CH.BNALP.HHZ. 2020-08-07T20:29:08.08 0.6 undecidable manual S 264 54.501 50 -0.4 49
MN.TUE.HHZ. 2020-08-07T20:29:07.44 0.6 undecidable manual S 162 52.4031 50 -0.47 48
CH.BERNI.HHZ. 2020-08-07T20:29:06.69 0.3 undecidable manual P 130 87.7455 50 0.4 15
CH.DAVOX.HHZ. 2020-08-07T20:29:02.02 0.3 undecidable manual P 105 58.2972 50 0.29 75
CH.FUSIO.HHZ. 2020-08-07T20:29:02.70 0.1 positive manual P 215 63.2922 50 0.19 100
MN.TUE.HHZ. 2020-08-07T20:29:01.12 0.3 undecidable manual P 162 52.4031 50 0.29 75
CH.BNALP.HHZ. 2020-08-07T20:29:01.52 0.3 undecidable manual P 264 54.501 50 0.37 74
CH.PLONS.HHZ. 2020-08-07T20:28:59.48 0.3 undecidable manual S 52 22.9548 113 -0.33 74
CH.PLONS.HHZ. 2020-08-07T20:28:56.14 0.3 undecidable manual P 52 22.9548 113 -0.01 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.PLONS.HHN. ML:2.0 0.00067700145 0.1408 AML other m 2020-08-07T20:29:00.06
CH.PLONS.HHE. ML:1.9 0.00046626155 0.128 AML other m 2020-08-07T20:28:59.55
MN.TUE.HHN. ML:1.6 0.00009455412499999999 0.1792 AML other m 2020-08-07T20:29:07.62
MN.TUE.HHE. ML:1.9 0.00017960295 1.7952 AML other m 2020-08-07T20:29:06.05
MN.TUE.HNN. ML:1.6 0.00008959307499999999 0.1792 AML other m 2020-08-07T20:29:07.53
MN.TUE.HNE. ML:1.8 0.00017469960000000002 1.7952 AML other m 2020-08-07T20:29:06.05
CH.BNALP.HHE. ML:1.6 0.00008667722 0.3456 AML other m 2020-08-07T20:29:09.65
CH.BNALP.HHN. ML:1.8 0.00013231025 0.3584 AML other m 2020-08-07T20:29:08.31
CH.DAVOX.HHN. ML:2.2 0.000330178 0.2432 AML other m 2020-08-07T20:29:10.45
CH.DAVOX.HHE. ML:2.0 0.0002083126 1.6928 AML other m 2020-08-07T20:29:10.91
CH.FUSIO.HHE. ML:1.6 0.00007320099999999999 0.1664 AML other m 2020-08-07T20:29:11.67
CH.FUSIO.HHN. ML:1.6 0.000068408625 0.128 AML other m 2020-08-07T20:29:11.10
CH.BERNI.HHN. ML:1.4 0.000029709075 0.2048 AML other m 2020-08-07T20:29:18.45
CH.BERNI.HHE. ML:1.3 0.000024747819999999995 0.192 AML other m 2020-08-07T20:29:18.62
CH.MUGIO.HHN. ML:1.8 0.000050676045000000004 1.7696 AML other m 2020-08-07T20:29:25.09
CH.MUGIO.HHE. ML:1.9 0.00006335471000000001 1.7056 AML other m 2020-08-07T20:29:23.95
IV.VARE.HHE. ML:2.0 0.00007506788 1.7824 AML other m 2020-08-07T20:29:28.06
IV.VARE.HHN. ML:1.9 0.000056977655000000005 0.1408 AML other m 2020-08-07T20:29:28.47
GU.SATI.HHN. ML:1.7 0.000026497325000000003 0.3712 AML other m 2020-08-07T20:29:43.49
GU.SATI.HHE. ML:1.7 0.000022693184999999997 0.4224 AML other m 2020-08-07T20:29:44.91
GU.TRAV.HHE. ML:1.7 0.00001736025 0.2048 AML other m 2020-08-07T20:29:53.85
GU.TRAV.HHN. ML:1.7 0.000017260985 0.256 AML other m 2020-08-07T20:29:50.85
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download