Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 02-09-2020 and time 10:15:08 (Italy) in region 6 km E Umbertide (PG)

A magnitude ML 1.3 earthquake occured in region: 6 km E Umbertide (PG), on

  • 02-09-2020 08:15:08 (UTC)
  • 02-09-2020 10:15:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3290, 12.3980 at 33 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
Umbertide PG 6 16681 16681
Montone PG 7 1680 18361
Pietralunga PG 13 2111 20472
Gubbio PG 15 32216 52688
Città di Castello PG 19 39913 92601

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km N of Perugia (166134 inhabitants)
44 Km E of Arezzo (99543 inhabitants)
48 Km NW of Foligno (57155 inhabitants)
76 Km SW of Fano (60888 inhabitants)
77 Km SW of Pesaro (94582 inhabitants)
83 Km S of Rimini (147750 inhabitants)
86 Km E of Siena (53903 inhabitants)
88 Km N of Terni (111501 inhabitants)
91 Km S of Cesena (96758 inhabitants)
96 Km W of Ancona (100861 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 1.3 2020-09-02
08:15:08		 43.3293 12.3982 33 2021-02-26
14:56:08		 Bollettino Sismico Italiano INGV 85105201
Reviewed
Rev100 		ML 1.5 2020-09-02
08:15:08		 43.3348 12.4737 32 2020-09-02
08:20:34		 Sala Sismica INGV-Roma 82557221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-02 08:15:08 ± 0.06
Latitude 43.3293 ± 0.0036
Longitude 12.3982 ± 0.0087
Depth (km) 33 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 85105201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 693
Semi-minor axis of confidence ellipse (meter) 303
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 98
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 206
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.01529
Epicentral distance of station farthest from the epicenter (degree) 0.15738
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 7
Type of magnitude ML
Reference to an origin 85105201
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-30 11:13:37

ML:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 82557221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-02 08:20:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2020-09-02T08:15:19.01 0.6 undecidable manual S 126 12.5763 157 -0.06 49
IV.ATPI.EHZ. 2020-09-02T08:15:19.17 0.6 undecidable manual S 1 13.4754 156 0.01 49
IV.ATPC.HHE. 2020-09-02T08:15:19.75 0.3 undecidable manual S 16 17.4714 149 0.1 72
IV.TB02.DHE. 2020-09-02T08:15:18.51 0.6 undecidable manual S 11 4.6953 171 0.02 50
IV.TB03.DH2.01 2020-09-02T08:15:18.72 0.6 undecidable manual S 7 8.0808 165 0.05 50
IV.TB01.DHE.01 2020-09-02T08:15:18.51 0.6 undecidable manual S 28 6.5934 168 -0.07 49
IV.ATVO.HHZ. 2020-09-02T08:15:18.48 0.6 undecidable manual S 7 5.8941 169 -0.06 50
IV.ATLO.EHZ. 2020-09-02T08:15:18.38 0.6 undecidable manual S 155 1.6983 177 -0.02 50
IV.ATPI.EHZ. 2020-09-02T08:15:14.79 0.1 undecidable manual P 1 13.4754 156 0.02 99
IV.ATVO.HHZ. 2020-09-02T08:15:14.45 0.1 undecidable manual P 7 5.8941 169 0.04 100
IV.ATPC.HHE. 2020-09-02T08:15:14.96 0.1 undecidable manual P 16 17.4714 149 -0.09 97
IV.ATLO.EHZ. 2020-09-02T08:15:14.41 0.1 undecidable manual P 155 1.6983 177 0.08 100
IV.TB02.DHE. 2020-09-02T08:15:14.35 0.1 undecidable manual P 11 4.6953 171 -0.03 100
IV.TB03.DH2.01 2020-09-02T08:15:14.47 0.1 undecidable manual P 7 8.0808 165 -0.02 100
IV.TB01.DHE.01 2020-09-02T08:15:14.38 0.1 undecidable manual P 28 6.5934 168 -0.05 99
IV.MURB.HHZ. 2020-09-02T08:15:14.79 0.3 undecidable manual P 126 12.5763 157 0.07 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MURB.HHE. ML:1.6 0.000154 0.28 AML other m 2020-09-02T08:15:19.35
IV.MURB.HHN. ML:1.5 0.00013800000000000002 0.22 AML other m 2020-09-02T08:15:19.47
IV.ATVO.HHN. ML:0.5 0.000016479975 0.2432 AML other m 2020-09-02T08:15:18.89
IV.ATVO.HHE. ML:0.6 0.000018093869999999998 0.3968 AML other m 2020-09-02T08:15:18.61
IV.ATPI.EHN. ML:0.6 0.0000142732405 0.2368 AML other m 2020-09-02T08:15:19.64
IV.MURB.HNN. ML:1.4 0.000115710435 0.32 AML other m 2020-09-02T08:15:19.31
IV.MURB.HNE. ML:1.5 0.00014047314999999998 0.3392 AML other m 2020-09-02T08:15:19.45
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