Earthquake with magnitude of ML 0.5 on date 28-08-2020 and time 02:30:51 (Italy) in region Confine Italia Svizzera (SVIZZERA)

A magnitude ML 0.5 earthquake occured in region: Confine Italia Svizzera (SVIZZERA), on

  • 28-08-2020 00:30:51 (UTC)
  • 28-08-2020 02:30:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.967, 7.873 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Macugnaga VB 7 557 557
Alagna Valsesia VC 14 408 965
Ceppo Morelli VB 15 321 1286
Carcoforo VC 15 78 1364
Gressoney-La-Trinité AO 16 303 1667
Riva Valdobbia VC 16 258 1925
Rima San Giuseppe VC 16 59 1984
Vanzone con San Carlo VB 19 407 2391
Rimasco VC 19 106 2497

Municipalities with at least 50000 inhabitants

An earthquake occurred to
75 Km W of Varese (80799 inhabitants)
79 Km W of Gallarate (53343 inhabitants)
82 Km NW of Novara (104380 inhabitants)
86 Km W of Busto Arsizio (83106 inhabitants)
91 Km W of Legnano (60262 inhabitants)
96 Km W of Como (84495 inhabitants)
100 Km N of Torino (890529 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 0.5 2020-08-28
00:30:51
45.9668 7.8733 10 2020-11-19
12:37:03
Bollettino Sismico Italiano INGV 83549621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-08-28 00:30:51 ± 0.18
Latitude 45.9668 ± 0.0099
Longitude 7.8733 ± 0.0272
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 83549621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2021
Semi-minor axis of confidence ellipse (meter) 1087
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 2020
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 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.09173
Epicentral distance of station farthest from the epicenter (degree) 0.59895
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 83549621
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-17 00:41:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MRGE.HHE. 2020-08-28T00:31:11.67 0.6 undecidable manual S 251 0.5989 50 -0.13 45
GU.REMY.HHZ. 2020-08-28T00:31:08.82 0.6 undecidable manual S 256 0.5153 50 -0.5 42
GU.TRAV.HHZ. 2020-08-28T00:31:07.10 0.6 undecidable manual S 191 0.4623 50 -0.66 40
GU.CIRO.HHE. 2020-08-28T00:31:06.03 0.6 undecidable manual S 210 0.4218 50 -0.54 42
IV.MRGE.HHE. 2020-08-28T00:31:04.19 0.6 undecidable manual P 251 0.5989 50 0.99 34
CH.DIX.HHZ. 2020-08-28T00:31:03.69 0.6 undecidable manual S 289 0.3417 50 -0.51 44
GU.REMY.HHZ. 2020-08-28T00:31:02.46 0.6 undecidable manual P 256 0.5153 50 0.69 39
GU.TRAV.HHZ. 2020-08-28T00:31:01.09 0.1 undecidable manual P 191 0.4623 50 0.22 91
GU.CIRO.HHE. 2020-08-28T00:31:00.41 0.1 undecidable manual P 210 0.4218 50 0.23 91
CH.DIX.HHZ. 2020-08-28T00:30:58.98 0.3 undecidable manual P 289 0.3417 50 0.17 70
CH.MMK.HHN. 2020-08-28T00:30:56.10 0.6 undecidable manual S 37 0.1043 132 -0.76 41
GU.SATI.HHZ. 2020-08-28T00:30:56.03 0.6 undecidable manual S 182 0.0917 136 -0.46 46
CH.MMK.HHN. 2020-08-28T00:30:54.66 0.1 undecidable manual P 37 0.1043 132 0.09 100
GU.SATI.HHZ. 2020-08-28T00:30:54.65 0.1 undecidable manual P 182 0.0917 136 0.29 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.SATI.HHE. ML:0.4 3.3165605E-5 0.1 AML other m 2020-08-28T00:30:56.14
GU.SATI.HHN. ML:0.2 1.756751E-5 0.08 AML other m 2020-08-28T00:30:56.44
CH.DIX.HHE. ML:0.6 1.400332E-5 0.82 AML other m 2020-08-28T00:31:04.22
CH.DIX.HHN. ML:0.7 2.0036975E-5 1.84 AML other m 2020-08-28T00:31:03.99
GU.TRAV.HHN. ML:0.6 9.9158865E-6 1.12 AML other m 2020-08-28T00:31:07.25
GU.TRAV.HHE. ML:0.3 4.8168985E-6 0.2 AML other m 2020-08-28T00:31:07.96
GU.REMY.HHN. ML:0.4 5.89719E-6 1 AML other m 2020-08-28T00:31:09.39
GU.REMY.HHE. ML:0.4 5.85706E-6 1.32 AML other m 2020-08-28T00:31:09.23
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