Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 14-10-2021 and time 17:56:51 (UTC) in region 5 km NE Pietralunga (PG)

A magnitude ML 0.6 earthquake occured in region: 5 km NE Pietralunga (PG), on

  • 14-10-2021 17:56:51 (UTC)
  • 14-10-2021 19:56:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4730, 12.4900 at 12 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 5 2111 2111
Cantiano PU 11 2245 4356
Apecchio PU 11 1882 6238
Piobbico PU 13 2029 8267
Gubbio PG 15 32216 40483
Cagli PU 15 8731 49214
Scheggia e Pascelupo PG 16 1393 50607
Montone PG 18 1680 52287

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km N of Perugia (166134 inhabitants)
49 Km E of Arezzo (99543 inhabitants)
59 Km SW of Fano (60888 inhabitants)
59 Km SW of Pesaro (94582 inhabitants)
60 Km NW of Foligno (57155 inhabitants)
66 Km S of Rimini (147750 inhabitants)
77 Km S of Cesena (96758 inhabitants)
85 Km W of Ancona (100861 inhabitants)
91 Km SE of Forlì (117913 inhabitants)
95 Km E of Siena (53903 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 0.6 2021-10-14
17:56:51		 43.4733 12.4903 12 2021-10-14
18:03:34		 Sala Sismica INGV-Roma 96563841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-14 17:56:51 ± 0.08
Latitude 43.4733 ± 0.0045
Longitude 12.4903 ± 0.0074
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96563841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 555
Semi-minor axis of confidence ellipse (meter) 343
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 300
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.18166
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 96563841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-14 18:03:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PP3.EHZ. 2021-10-14T17:57:05.81 3.0 positive manual P -0.01 0
IV.BADI.EHZ. 2021-10-14T17:56:59.29 0.6 undecidable manual S 282 20.1687 99 0.19 47
IV.ATLO.EHZ. 2021-10-14T17:56:58.69 0.6 undecidable manual S 201 18.7701 101 -0.03 49
IV.FRON.EHZ. 2021-10-14T17:56:58.93 0.6 undecidable manual S 75 19.5693 100 0 49
IV.NARO.HHZ. 2021-10-14T17:56:58.02 0.6 undecidable manual S 25 16.872 105 -0.22 47
IV.BADI.EHZ. 2021-10-14T17:56:56.02 1.0 undecidable manual P 282 20.1687 99 0.25 23
IV.FRON.EHZ. 2021-10-14T17:56:55.61 0.1 undecidable manual P 75 19.5693 100 -0.06 98
IV.NARO.HHZ. 2021-10-14T17:56:55.36 0.3 undecidable manual P 25 16.872 105 0.09 73
IV.ATPI.EHZ. 2021-10-14T17:56:55.73 0.3 undecidable manual S 251 7.4814 139 -0.37 70
IV.ATPC.HHZ. 2021-10-14T17:56:55.64 0.6 undecidable manual S 287 2.7972 164 0.15 50
IV.PIEI.HHZ. 2021-10-14T17:56:55.83 0.6 undecidable manual S 27 7.7811 138 -0.32 47
IV.ATLO.EHZ. 2021-10-14T17:56:55.43 0.1 undecidable manual P 201 18.7701 101 -0.12 98
IV.ATBU.EHZ. 2021-10-14T17:56:55.89 0.6 undecidable manual S 87 4.6953 153 0.22 49
IV.ATBU.EHZ. 2021-10-14T17:56:54.08 0.1 undecidable manual P 87 4.6953 153 0.29 96
IV.ATPI.EHZ. 2021-10-14T17:56:54.12 0.3 negative manual P 251 7.4814 139 0.09 74
IV.PIEI.HHZ. 2021-10-14T17:56:54.17 0.3 positive manual P 27 7.7811 138 0.11 74
IV.ATPC.HHZ. 2021-10-14T17:56:53.60 0.1 undecidable manual P 287 2.7972 164 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHE. ML:0.6 0.000056550085 0.2176 AML other m 2021-10-14T17:56:55.95
IV.ATPI.EHN. ML:0.6 0.000044163220000000006 0.256 AML other m 2021-10-14T17:56:55.84
IV.PIEI.HHE. ML:0.6 0.000056351235 0.1024 AML other m 2021-10-14T17:56:56.08
IV.PIEI.HHN. ML:0.5 0.000037605875 0.1024 AML other m 2021-10-14T17:56:55.92
IV.NARO.HHE. ML:0.4 0.000019493700499999997 0.3456 AML other m 2021-10-14T17:56:58.35
IV.NARO.HHN. ML:0.7 0.00004189416 0.064 AML other m 2021-10-14T17:56:58.30
IV.BADI.EHE. ML:0.8 0.000041825315 0.1024 AML other m 2021-10-14T17:56:59.39
IV.BADI.EHN. ML:0.7 0.000034464289999999994 0.2176 AML other m 2021-10-14T17:56:59.89
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