Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 19-11-2021 and time 11:35:08 (Italy) in region 10 km S Pietralunga (PG)

A magnitude ML 1.2 earthquake occured in region: 10 km S Pietralunga (PG), on

  • 19-11-2021 10:35:08 (UTC)
  • 19-11-2021 11:35:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3540, 12.4510 at 10 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
Pietralunga PG 10 2111 2111
Montone PG 10 1680 3791
Gubbio PG 10 32216 36007
Umbertide PG 11 16681 52688
Scheggia e Pascelupo PG 19 1393 54081
Cantiano PU 20 2245 56326

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
49 Km NW of Foligno (57155 inhabitants)
71 Km SW of Fano (60888 inhabitants)
72 Km SW of Pesaro (94582 inhabitants)
79 Km S of Rimini (147750 inhabitants)
89 Km S of Cesena (96758 inhabitants)
90 Km N of Terni (111501 inhabitants)
91 Km E of Siena (53903 inhabitants)
91 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
Reviewed
Rev100 		ML 1.2 2021-11-19
10:35:08		 43.3542 12.4513 11 2021-11-19
10:46:20		 Sala Sismica INGV-Roma 97587501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-19 10:35:08 ± 0.2
Latitude 43.3542 ± 0.0063
Longitude 12.4513 ± 0.0148
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97587501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1247
Semi-minor axis of confidence ellipse (meter) 325
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 248
Circular confidence region, given by single value of horizontal uncertainty (meter) 1250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 161
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.27339
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 97587501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-19 10:46:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2021-11-19T10:35:18.73 0.1 undecidable manual S 20 30.3474 50 -0.21 90
IV.ATCC.EHZ. 2021-11-19T10:35:17.84 0.1 undecidable manual S 141 24.1536 50 0.55 89
IV.PIEI.HHZ. 2021-11-19T10:35:16.99 0.1 undecidable manual S 18 21.2676 116 0.5 87
IV.NARO.HHZ. 2021-11-19T10:35:14.38 0.6 undecidable manual P 20 30.3474 50 -0.05 47
IV.ATCC.EHZ. 2021-11-19T10:35:13.27 0.6 undecidable manual P 141 24.1536 50 -0.2 46
IV.ATPI.EHZ. 2021-11-19T10:35:13.51 0.1 undecidable manual S 340 11.3775 133 -0.14 98
IV.FOSV.EHZ. 2021-11-19T10:35:13.90 3.0 positive manual P -0.17 0
IV.PIEI.HHZ. 2021-11-19T10:35:13.32 0.3 negative manual P 18 21.2676 116 0.31 69
IV.MURB.HHZ. 2021-11-19T10:35:13.68 0.1 undecidable manual S 150 11.6772 132 -0.04 100
IV.ATFO.HHZ. 2021-11-19T10:35:12.76 0.1 undecidable manual S 82 9.7791 137 -0.49 93
IV.ATFO.HHZ. 2021-11-19T10:35:11.10 0.1 positive manual P 82 9.7791 137 -0.04 100
IV.MURB.HHZ. 2021-11-19T10:35:11.44 0.6 undecidable manual P 150 11.6772 132 0.03 50
IV.ATPI.EHZ. 2021-11-19T10:35:11.47 0.3 positive manual P 340 11.3775 133 0.1 74
IV.ATVO.HHZ. 2021-11-19T10:35:10.32 0.6 undecidable manual P 311 4.7952 156 -0.25 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.2 0.00021600000000000002 1.52 AML other m 2021-11-19T10:35:12.99
IV.ATFO.HHE. ML:1.2 0.000176 0.16 AML other m 2021-11-19T10:35:13.45
IV.MURB.HHN. ML:1.4 0.0002495 1.48 AML other m 2021-11-19T10:35:14.78
IV.MURB.HHE. ML:1.5 0.000347 1.74 AML other m 2021-11-19T10:35:14.05
IV.ATPI.EHN. ML:0.9 0.0000851 1.1 AML other m 2021-11-19T10:35:14.97
IV.ATPI.EHE. ML:0.8 0.00007230000000000001 1.06 AML other m 2021-11-19T10:35:14.80
IV.PIEI.HHN. ML:1.2 0.00011 0.26 AML other m 2021-11-19T10:35:17.60
IV.PIEI.HHE. ML:1.2 0.00010900000000000002 0.14 AML other m 2021-11-19T10:35:18.10
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