Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 07-11-2021 and time 10:53:22 (Italy) in region 8 km SE Valtopina (PG)

A magnitude ML 1.3 earthquake occured in region: 8 km SE Valtopina (PG), on

  • 07-11-2021 09:53:22 (UTC)
  • 07-11-2021 10:53:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9940, 12.8050 at 11 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.

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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
Valtopina PG 8 1398 1398
Foligno PG 9 57155 58553
Spello PG 11 8645 67198
Nocera Umbra PG 13 5839 73037
Trevi PG 14 8469 81506
Serravalle di Chienti MC 15 1070 82576
Sellano PG 15 1079 83655
Monte Cavallo MC 16 145 83800
Montefalco PG 17 5679 89479
Bevagna PG 17 5081 94560
Assisi PG 18 28299 122859
Cannara PG 18 4305 127164
Campello sul Clitunno PG 19 2442 129606

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
50 Km N of Terni (111501 inhabitants)
82 Km W of Teramo (54892 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
91 Km SE of Arezzo (99543 inhabitants)
96 Km S of Fano (60888 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 1.3 2021-11-07
09:53:22		 42.9938 12.8048 11 2021-11-07
10:17:27		 Sala Sismica INGV-Roma 97314291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-07 09:53:22 ± 0.04
Latitude 42.9938 ± 0.0018
Longitude 12.8048 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97314291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 259
Semi-minor axis of confidence ellipse (meter) 180
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39930
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 97314291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-07 10:17:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHE. 2021-11-07T09:53:36.01 3.0 undecidable manual S 0.33 0
IV.EL6.EHZ. 2021-11-07T09:53:36.72 0.6 undecidable manual S 33 44.3223 90 0.33 44
IV.CPGN.EHZ. 2021-11-07T09:53:36.63 3.0 undecidable manual P 0
IV.GAVE.EHN. 2021-11-07T09:53:33.73 0.6 undecidable manual S 168 34.2435 91 0.03 48
IV.SNTG.HHZ. 2021-11-07T09:53:32.47 0.3 undecidable manual S 21 30.9468 91 -0.37 67
IV.MOMA.HHZ. 2021-11-07T09:53:32.27 0.6 undecidable manual S 222 28.4493 91 0.12 48
IV.NRCA.HHZ. 2021-11-07T09:53:32.68 0.6 undecidable manual S 125 30.747 91 -0.11 47
IV.MURB.HHZ. 2021-11-07T09:53:32.92 3.0 undecidable manual P 0
IV.ATCC.EHZ. 2021-11-07T09:53:31.64 0.6 undecidable manual S 328 25.0527 91 0.38 46
IV.FDMO.HHZ. 2021-11-07T09:53:30.83 0.6 undecidable manual S 78 23.3544 92 0.01 49
IV.EL6.EHZ. 2021-11-07T09:53:30.53 0.6 negative manual P 33 44.3223 90 0.18 46
IV.MML1.EHZ. 2021-11-07T09:53:29.46 0.6 undecidable manual S 45 18.9699 93 -0.17 48
IV.SNTG.HHZ. 2021-11-07T09:53:28.37 0.6 negative manual P 21 30.9468 91 0.07 48
IV.GAVE.EHN. 2021-11-07T09:53:28.80 0.1 undecidable manual P 168 34.2435 91 0 96
IV.NRCA.HHZ. 2021-11-07T09:53:28.19 1.0 negative manual P 125 30.747 91 -0.08 24
IV.ASSB.HHZ. 2021-11-07T09:53:27.97 0.3 undecidable manual S 295 12.9759 106 -0.09 73
IV.CESI.HHZ. 2021-11-07T09:53:27.17 0.6 undecidable manual S 81 8.1807 131 0.23 48
IV.ATCC.EHZ. 2021-11-07T09:53:27.44 0.6 undecidable manual P 328 25.0527 91 0.05 49
IV.MOMA.HHZ. 2021-11-07T09:53:27.80 0.1 undecidable manual P 222 28.4493 91 -0.11 95
IV.FDMO.HHZ. 2021-11-07T09:53:27.14 0.6 negative manual P 78 23.3544 92 0.01 49
IV.MML1.EHZ. 2021-11-07T09:53:26.50 0.3 positive manual P 45 18.9699 93 0.05 74
IV.ASSB.HHZ. 2021-11-07T09:53:25.57 0.1 positive manual P 295 12.9759 106 0.03 100
IV.CESI.HHZ. 2021-11-07T09:53:24.99 0.1 positive manual P 81 8.1807 131 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.1 0.000153 0.58 AML other m 2021-11-07T09:53:27.40
IV.CESI.HHE. ML:1.1 0.0001655 0.6 AML other m 2021-11-07T09:53:27.15
IV.ASSB.HHN. ML:1.7 0.0005204999999999999 0.6 AML other m 2021-11-07T09:53:28.47
IV.ASSB.HHE. ML:1.6 0.00038700000000000003 0.22 AML other m 2021-11-07T09:53:28.44
IV.MML1.EHE. ML:1.4 0.0001705 0.38 AML other m 2021-11-07T09:53:29.92
IV.MML1.EHN. ML:1.3 0.00014050000000000003 0.08 AML other m 2021-11-07T09:53:29.80
IV.FDMO.HHN. ML:1.1 0.00006765 0.92 AML other m 2021-11-07T09:53:31.02
IV.ATCC.EHN. ML:1.2 0.0000976 1.4 AML other m 2021-11-07T09:53:31.24
IV.FDMO.HHE. ML:1.0 0.0000659 0.54 AML other m 2021-11-07T09:53:32.60
IV.ATCC.EHE. ML:1.2 0.00008094999999999999 0.9 AML other m 2021-11-07T09:53:32.65
IV.MOMA.HHN. ML:1.6 0.00017999999999999998 1.22 AML other m 2021-11-07T09:53:33.00
IV.MOMA.HHE. ML:1.5 0.0001555 1.26 AML other m 2021-11-07T09:53:33.82
IV.NRCA.HHE. ML:1.3 0.00009045 0.82 AML other m 2021-11-07T09:53:33.76
IV.GAVE.EHE. ML:1.4 0.00011249999999999998 0.12 AML other m 2021-11-07T09:53:34.46
IV.GAVE.EHN. ML:1.4 0.00009955 1.06 AML other m 2021-11-07T09:53:34.53
IV.NRCA.HHN. ML:1.4 0.0001185 0.12 AML other m 2021-11-07T09:53:35.64
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