Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 25-06-2021 and time 10:04:19 (Italy) in region 4 km SE Pietralunga (PG)

A magnitude ML 1.2 earthquake occured in region: 4 km SE Pietralunga (PG), on

  • 25-06-2021 08:04:19 (UTC)
  • 25-06-2021 10:04:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4170, 12.4710 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.

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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 4 2111 2111
Gubbio PG 11 32216 34327
Montone PG 13 1680 36007
Cantiano PU 14 2245 38252
Scheggia e Pascelupo PG 16 1393 39645
Apecchio PU 16 1882 41527
Umbertide PG 17 16681 58208
Città di Castello PG 19 39913 98121
Piobbico PU 20 2029 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
55 Km NW of Foligno (57155 inhabitants)
65 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
72 Km S of Rimini (147750 inhabitants)
82 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
93 Km E of Siena (53903 inhabitants)
96 Km SE of Forlì (117913 inhabitants)
96 Km N of Terni (111501 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 2021-06-25
08:04:19		 43.4168 12.4708 7 2021-06-25
08:09:41		 Sala Sismica INGV-Roma 91860301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-25 08:04:19 ± 0.12
Latitude 43.4168 ± 0.0027
Longitude 12.4708 ± 0.0050
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 91860301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 326
Semi-minor axis of confidence ellipse (meter) 141
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29768
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 91860301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-25 08:09:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2021-06-25T08:04:38.83 3.0 positive manual P 0.16 0
IV.EL6.EHZ. 2021-06-25T08:04:36.62 3.0 undecidable manual S -1.09 0
IV.PARC.HHZ. 2021-06-25T08:04:30.82 0.1 undecidable manual S 324 31.746 103 0.17 93
IV.ATCC.EHZ. 2021-06-25T08:04:30.07 0.1 undecidable manual S 152 29.0487 104 0.33 90
IV.NARO.HHZ. 2021-06-25T08:04:27.43 0.1 undecidable manual S 22 23.2545 108 -0.37 90
IV.CAFI.HHZ. 2021-06-25T08:04:27.66 3.0 undecidable manual P -0.65 0
IV.FRON.EHZ. 2021-06-25T08:04:27.74 0.1 undecidable manual S 61 23.3544 108 -0.09 96
IV.MURB.HHZ. 2021-06-25T08:04:26.19 0.3 undecidable manual S 166 17.5713 113 0.24 70
IV.ATMI.HHZ. 2021-06-25T08:04:26.17 0.3 undecidable manual S 241 18.7701 112 -0.15 72
IV.PARC.HHZ. 2021-06-25T08:04:25.81 1.0 positive manual P 324 31.746 103 -0.06 24
IV.ATCC.EHZ. 2021-06-25T08:04:25.29 0.1 undecidable manual P 152 29.0487 104 -0.05 96
IV.PIEI.HHZ. 2021-06-25T08:04:25.46 0.1 undecidable manual S 21 14.1747 118 0.59 86
IV.MPAG.EHZ. 2021-06-25T08:04:25.67 1.0 positive manual P 44 33.0447 103 -0.45 22
IV.APEC.HHZ. 2021-06-25T08:04:25.82 0.1 undecidable manual S 345 16.2726 114 0.3 93
IV.FRON.EHZ. 2021-06-25T08:04:24.01 0.1 positive manual P 61 23.3544 108 -0.23 93
IV.NARO.HHZ. 2021-06-25T08:04:23.95 0.1 positive manual P 22 23.2545 108 -0.27 92
IV.APEC.HHZ. 2021-06-25T08:04:23.08 0.3 undecidable manual P 345 16.2726 114 0.18 72
IV.ATFO.HHZ. 2021-06-25T08:04:23.54 0.1 undecidable manual S 124 9.879 127 -0.06 99
IV.MURB.HHZ. 2021-06-25T08:04:23.23 0.1 positive manual P 166 17.5713 113 0.08 97
IV.ATMI.HHZ. 2021-06-25T08:04:23.40 0.6 positive manual P 241 18.7701 112 0.04 49
IV.PIEI.HHZ. 2021-06-25T08:04:22.59 0.6 positive manual P 21 14.1747 118 0.06 49
IV.ATPI.EHZ. 2021-06-25T08:04:22.66 0.1 undecidable manual S 304 6.6933 138 -0.13 98
IV.ATVO.HHZ. 2021-06-25T08:04:22.56 0.1 undecidable manual S 233 6.4935 139 -0.17 97
IV.ATVO.HHZ. 2021-06-25T08:04:21.21 0.1 undecidable manual P 233 6.4935 139 -0.08 99
IV.ATPI.EHZ. 2021-06-25T08:04:21.30 0.1 undecidable manual P 304 6.6933 138 -0.02 100
IV.ATFO.HHZ. 2021-06-25T08:04:21.74 0.3 undecidable manual P 124 9.879 127 -0.05 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:1.4 0.000258 0.28 AML other m 2021-06-25T08:04:25.58
IV.PIEI.HHE. ML:1.4 0.00028550000000000005 0.14 AML other m 2021-06-25T08:04:25.74
IV.APEC.HHN. ML:1.3 0.000177 1.72 AML other m 2021-06-25T08:04:25.96
IV.APEC.HHE. ML:1.4 0.0002375 0.16 AML other m 2021-06-25T08:04:26.17
IV.MURB.HNE. ML:1.6 0.0003195 0.4 AML other m 2021-06-25T08:04:26.74
IV.MURB.HHN. ML:1.5 0.0003075 1.1 AML other m 2021-06-25T08:04:27.70
IV.NARO.HHE. ML:1.0 0.00005830000000000001 0.66 AML other m 2021-06-25T08:04:28.48
IV.NARO.HHN. ML:0.8 0.0000444 0.34 AML other m 2021-06-25T08:04:28.75
IV.FRON.EHN. ML:1.0 0.00006335000000000001 0.14 AML other m 2021-06-25T08:04:28.84
IV.FRON.EHE. ML:0.7 0.0000341 0.8 AML other m 2021-06-25T08:04:29.40
IV.MURB.HHE. ML:1.5 0.0002965 0.28 AML other m 2021-06-25T08:04:29.42
IV.MURB.HNN. ML:1.4 0.00023349999999999998 0.46 AML other m 2021-06-25T08:04:29.55
IV.ATMI.HHE. ML:1.1 0.00010875 1.38 AML other m 2021-06-25T08:04:30.85
IV.ATCC.EHN. ML:1.3 0.00010045000000000002 0.16 AML other m 2021-06-25T08:04:30.27
IV.ATCC.EHE. ML:1.3 0.00010035 0.14 AML other m 2021-06-25T08:04:31.06
IV.PARC.HHN. ML:0.9 0.000035449999999999994 0.2 AML other m 2021-06-25T08:04:32.03
IV.PARC.HHE. ML:0.8 0.0000298 1.36 AML other m 2021-06-25T08:04:32.75
IV.ATMI.HHN. ML:1.0 0.0000876 0.34 AML other m 2021-06-25T08:04:32.36
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