Earthquake with magnitude of ML 0.5 on date 06-07-2021 and time 17:31:28 (UTC) in region 5 km NW Pietralunga (PG)

A magnitude ML 0.5 earthquake occured in region: 5 km NW Pietralunga (PG), on

  • 06-07-2021 17:31:28 (UTC)
  • 06-07-2021 19:31:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4770, 12.4030 at 7 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.

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
Apecchio PU 9 1882 3993
CittĂ  di Castello PG 13 39913 43906
Montone PG 14 1680 45586
Piobbico PU 15 2029 47615
Cantiano PU 18 2245 49860
Mercatello sul Metauro PU 20 1378 51238
Gubbio PG 20 32216 83454
Umbertide PG 20 16681 100135
Monte Santa Maria Tiberina PG 20 1183 101318
San Giustino PG 20 11297 112615

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Perugia (166134 inhabitants)
42 Km E of Arezzo (99543 inhabitants)
63 Km NW of Foligno (57155 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
64 Km SW of Fano (60888 inhabitants)
66 Km S of Rimini (147750 inhabitants)
75 Km S of Cesena (96758 inhabitants)
88 Km SE of Forlì (117913 inhabitants)
88 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
98 Km E of Firenze (382808 inhabitants)
99 Km SE of Faenza (58541 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 0.5 2021-07-06
17:31:28
43.4773 12.4027 7 2021-07-06
17:49:54
Sala Sismica INGV-Roma 92315921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-06 17:31:28 ± 0.18
Latitude 43.4773 ± 0.0063
Longitude 12.4027 ± 0.0087
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 92315921

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 706
Semi-minor axis of confidence ellipse (meter) 235
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 99
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.39120
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 92315921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-06 17:49:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-07-06T17:31:43.28 0.6 undecidable manual S 87 43.4232 50 -0.14 46
IV.ARVD.HHZ. 2021-07-06T17:31:39.44 0.6 negative manual P 87 43.4232 50 2.3 13
IV.PARC.HHZ. 2021-07-06T17:31:37.36 0.6 undecidable manual S 325 23.1546 108 0.39 45
IV.ATLO.HNE. 2021-07-06T17:31:35.33 0.6 undecidable manual S 179 17.9709 112 0.03 49
IV.NARO.HHZ. 2021-07-06T17:31:35.62 0.6 undecidable manual S 44 20.5683 110 -0.52 44
IV.ATFO.HHZ. 2021-07-06T17:31:35.60 0.6 undecidable manual S 132 18.3705 112 0.19 47
IV.APEC.HHE. 2021-07-06T17:31:35.52 0.1 undecidable manual P 9 9.0798 129 4.62 4
IV.BADI.EHZ. 2021-07-06T17:31:33.81 0.6 undecidable manual S 286 13.2756 119 0 50
IV.PARC.HHZ. 2021-07-06T17:31:33.39 0.6 undecidable manual P 325 23.1546 108 -0.02 49
IV.ATBU.HNN. 2021-07-06T17:31:33.79 0.6 undecidable manual S 91 11.6772 122 0.43 45
IV.ATVO.HHZ. 2021-07-06T17:31:33.34 0.6 undecidable manual S 178 10.5783 125 0.32 47
IV.PIEI.HHZ. 2021-07-06T17:31:33.68 0.6 undecidable manual S 59 12.4764 121 0.1 49
IV.ATFO.HHZ. 2021-07-06T17:31:32.65 1.0 negative manual P 132 18.3705 112 0.14 24
IV.NARO.HHZ. 2021-07-06T17:31:32.48 0.1 undecidable manual P 44 20.5683 110 -0.45 89
IV.ATVO.HHZ. 2021-07-06T17:31:31.28 0.1 positive manual P 178 10.5783 125 0.15 97
IV.PIEI.HHZ. 2021-07-06T17:31:31.33 0.6 positive manual P 59 12.4764 121 -0.12 48
IV.ATPC.HHN. 2021-07-06T17:31:31.52 0.6 undecidable manual S 85 4.3956 149 -0.01 50
IV.ATPI.EHZ. 2021-07-06T17:31:31.16 0.6 undecidable manual S 181 2.997 158 -0.15 49
IV.ATLO.HNE. 2021-07-06T17:31:31.68 0.1 undecidable manual P 179 17.9709 112 -0.77 80
IV.BADI.EHZ. 2021-07-06T17:31:31.62 0.3 negative manual P 286 13.2756 119 0.04 74
IV.ATBU.HNN. 2021-07-06T17:31:31.46 0.1 undecidable manual P 91 11.6772 122 0.14 97
IV.ATPC.HHN. 2021-07-06T17:31:30.24 0.1 undecidable manual P 85 4.3956 149 -0.03 100
IV.ATPI.EHZ. 2021-07-06T17:31:30.08 1.0 undecidable manual P 181 2.997 158 -0.06 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:0.7 0.00006275 0.36 AML other m 2021-07-06T17:31:33.60
IV.ATVO.HHN. ML:0.4 0.00004055 0.36 AML other m 2021-07-06T17:31:33.57
IV.BADI.EHN. ML:0.6 0.00004425 1.7 AML other m 2021-07-06T17:31:33.94
IV.PIEI.HHN. ML:0.3 0.0000259 1.62 AML other m 2021-07-06T17:31:34.07
IV.BADI.EHE. ML:0.6 0.000047600000000000005 0.46 AML other m 2021-07-06T17:31:34.24
IV.PIEI.HHE. ML:0.4 0.0000293 0.26 AML other m 2021-07-06T17:31:34.25
IV.ATPI.HNE. ML:0.0 0.000145071715 0.1024 AML other m 2021-07-06T17:31:31.28
IV.ATPI.HNN. ML:0.0 0.00011068493500000002 0.1152 AML other m 2021-07-06T17:31:31.43
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download