Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 21-09-2019 and time 19:02:43 (UTC) in region Confine Italia Svizzera (SVIZZERA)

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

  • 21-09-2019 19:02:43 (UTC)
  • 21-09-2019 21:02:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 46.3880, 9.8940 at 11 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Lanzada SO 13 1341 1341
Caspoggio SO 14 1411 2752
Chiesa in Valmalenco SO 14 2514 5266
Torre di Santa Maria SO 18 773 6039
Spriana SO 19 97 6136

Municipalities with at least 50000 inhabitants

An earthquake occurred to
79 Km N of Bergamo (119381 inhabitants)
90 Km NE of Como (84495 inhabitants)
98 Km N of Brescia (196480 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 2019-09-21
19:02:43		 46.3882 9.8943 11 2020-02-28
16:42:10		 Bollettino Sismico Italiano INGV 74280101
Reviewed
Rev100 		ML 0.5 2019-09-21
19:02:43		 46.3788 9.8975 14 2019-09-21
19:16:09		 Sala Sismica INGV-Roma 72623381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-21 19:02:43 ± 0.29
Latitude 46.3882 ± 0.0243
Longitude 9.8943 ± 0.0156
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74280101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2670
Semi-minor axis of confidence ellipse (meter) 1089
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 175
Circular confidence region, given by single value of horizontal uncertainty (meter) 2670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 197
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 11
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55308
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 74280101
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-03 12:21:10

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 72623381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-21 19:16:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2019-09-21T19:04:37.41 3.0 undecidable manual Sg 7.88 0
IV.POFI.HHZ. 2019-09-21T19:04:14.66 3.0 negative manual Pg 13.62 0
IV.OFFI.HHZ. 2019-09-21T19:03:59.90 3.0 undecidable manual Pg 12.9 0
GU.RNCA.HHZ. 2019-09-21T19:03:41.27 3.0 undecidable manual Sg 0.64 0
GU.GRAM.HHZ. 2019-09-21T19:03:35.59 3.0 undecidable manual S -1.09 0
IV.COR1.EHZ. 2019-09-21T19:03:35.94 3.0 negative manual Pn 0.7 0
IV.SARZ.HHZ. 2019-09-21T19:03:28.73 3.0 undecidable manual S -3.45 0
CH.DAVOX.HHZ. 2019-09-21T19:02:57.11 0.6 undecidable manual S 359 43.5231 90 -0.28 46
MN.TUE.HHZ. 2019-09-21T19:02:56.33 0.3 undecidable manual S 283 42.8238 90 -0.88 55
CH.FUORN.HHZ. 2019-09-21T19:02:55.97 0.3 undecidable manual S 47 38.2284 91 0 75
IV.BRMO.HHZ. 2019-09-21T19:02:54.98 0.3 undecidable manual S 75 37.8288 91 -0.89 57
ST.CARE.EHZ. 2019-09-21T19:02:54.48 0.3 undecidable manual P 86 61.3941 90 0.29 68
MN.TUE.HHZ. 2019-09-21T19:02:51.57 0.3 undecidable manual P 283 42.8238 90 0.24 72
CH.DAVOX.HHZ. 2019-09-21T19:02:51.92 0.3 undecidable manual P 359 43.5231 90 0.48 68
IV.BRMO.HHZ. 2019-09-21T19:02:50.72 0.3 undecidable manual P 75 37.8288 91 0.16 73
CH.FUORN.HHZ. 2019-09-21T19:02:50.94 0.1 undecidable manual P 47 38.2284 91 0.32 94
CH.BERNI.HHZ. 2019-09-21T19:02:48.08 0.3 undecidable manual S 74 10.2786 120 -0.5 72
CH.BERNI.HHZ. 2019-09-21T19:02:46.56 0.1 undecidable manual P 74 10.2786 120 0.21 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
CH.BERNI.HHN. ML:0.9 0.000089600205 0.0896 AML other m 2019-09-21T19:02:48.29
CH.BERNI.HHE. ML:1.0 0.00011030955 0.0768 AML other m 2019-09-21T19:02:48.30
IV.BRMO.HHE. ML:0.1 0.0000053479285 0.0768 AML other m 2019-09-21T19:02:55.83
CH.FUORN.HHE. ML:0.4 0.000009091569000000001 0.4864 AML other m 2019-09-21T19:02:56.08
IV.BRMO.HHN. ML:0.4 0.000007856454000000001 0.0768 AML other m 2019-09-21T19:02:56.64
MN.TUE.HHN. ML:0.5 0.000010825057 0.1664 AML other m 2019-09-21T19:02:56.65
MN.TUE.HHE. ML:0.5 0.000009108936 0.1536 AML other m 2019-09-21T19:02:56.82
CH.FUORN.HHN. ML:0.4 0.000010058844500000001 0.2176 AML other m 2019-09-21T19:02:57.50
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