Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 25-02-2021 and time 12:59:55 (Italy) in region 7 km SE Pietralunga (PG)

A magnitude ML 0.9 earthquake occured in region: 7 km SE Pietralunga (PG), on

  • 25-02-2021 11:59:55 (UTC)
  • 25-02-2021 12:59:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3900, 12.4850 at 6 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 7 2111 2111
Gubbio PG 9 32216 34327
Montone PG 13 1680 36007
Cantiano PU 15 2245 38252
Scheggia e Pascelupo PG 15 1393 39645
Umbertide PG 16 16681 56326
Costacciaro PG 19 1216 57542
Apecchio PU 20 1882 59424

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km N of Perugia (166134 inhabitants)
49 Km E of Arezzo (99543 inhabitants)
51 Km NW of Foligno (57155 inhabitants)
66 Km SW of Fano (60888 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
75 Km S of Rimini (147750 inhabitants)
85 Km S of Cesena (96758 inhabitants)
87 Km W of Ancona (100861 inhabitants)
93 Km N of Terni (111501 inhabitants)
94 Km E of Siena (53903 inhabitants)
99 Km SE of Forlì (117913 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 0.9 2021-02-25
11:59:55		 43.3902 12.4853 6 2021-02-25
12:04:24		 Sala Sismica INGV-Roma 87476651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-25 11:59:55 ± 0.13
Latitude 43.3902 ± 0.0027
Longitude 12.4853 ± 0.0050
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87476651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 328
Semi-minor axis of confidence ellipse (meter) 131
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 111
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) 50
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.03687
Epicentral distance of station farthest from the epicenter (degree) 0.23382
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 87476651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-25 12:04:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2021-02-25T12:00:04.83 0.3 undecidable manual S 151 25.9518 103 0.36 68
IV.BADI.EHZ. 2021-02-25T12:00:04.04 0.3 undecidable manual S 304 23.5542 104 0.39 68
IV.NARO.HHZ. 2021-02-25T12:00:03.93 0.3 undecidable manual S 17 25.6521 103 -0.44 67
IV.ATVA.EHZ. 2021-02-25T12:00:03.00 0.3 undecidable manual S 233 20.3685 106 0.41 68
IV.PIEI.HHZ. 2021-02-25T12:00:02.01 0.3 undecidable manual S 14 16.6722 110 0.64 63
IV.ATSC.EHZ. 2021-02-25T12:00:01.94 0.6 undecidable manual S 77 16.6722 110 0.58 43
IV.ATCC.EHZ. 2021-02-25T12:00:00.47 0.3 undecidable manual P 151 25.9518 103 -0.1 72
IV.BADI.EHZ. 2021-02-25T12:00:00.16 0.6 negative manual P 304 23.5542 104 0.07 48
IV.NARO.HHZ. 2021-02-25T12:00:00.04 0.1 undecidable manual P 17 25.6521 103 -0.47 88
IV.MURB.HHZ. 2021-02-25T12:00:00.86 0.3 undecidable manual S 167 14.4744 113 0.2 72
IV.ATVA.EHZ. 2021-02-25T11:59:59.48 0.6 undecidable manual P 233 20.3685 106 0 49
IV.ATBU.EHZ. 2021-02-25T11:59:59.93 0.3 undecidable manual S 28 10.7781 119 0.42 69
IV.ATLO.EHZ. 2021-02-25T11:59:59.52 0.3 undecidable manual S 217 10.4784 120 0.11 73
IV.ATPI.EHZ. 2021-02-25T11:59:59.24 0.3 undecidable manual S 315 9.4794 122 0.11 73
IV.ATVO.HHZ. 2021-02-25T11:59:58.05 0.3 undecidable manual S 262 6.3936 133 -0.23 72
IV.TB03.DHZ. 2021-02-25T11:59:58.42 0.3 undecidable manual S 282 6.1938 134 0.2 73
IV.MURB.HHZ. 2021-02-25T11:59:58.31 0.3 negative manual P 167 14.4744 113 -0.06 74
IV.ATFO.HHZ. 2021-02-25T11:59:58.43 0.3 undecidable manual S 111 7.3815 129 -0.11 74
IV.ATSC.EHZ. 2021-02-25T11:59:58.61 0.1 undecidable manual P 77 16.6722 110 -0.16 96
IV.PIEI.HHZ. 2021-02-25T11:59:58.70 0.6 undecidable manual P 14 16.6722 110 -0.07 49
IV.ATPI.EHZ. 2021-02-25T11:59:57.52 0.6 undecidable manual P 315 9.4794 122 0.04 50
IV.ATBU.EHZ. 2021-02-25T11:59:57.79 0.3 undecidable manual P 28 10.7781 119 0.09 74
IV.ATLO.EHZ. 2021-02-25T11:59:57.59 0.1 undecidable manual P 217 10.4784 120 -0.05 99
IV.ATPC.HNZ. 2021-02-25T11:59:57.62 0.1 undecidable manual P 347 10.2786 120 0 100
IV.TB01.DHZ.01 2021-02-25T11:59:57.51 0.3 undecidable manual S 257 4.0959 146 -0.25 72
IV.TB01.DHZ.01 2021-02-25T11:59:56.51 0.1 undecidable manual P 257 4.0959 146 -0.18 97
IV.ATVO.HHZ. 2021-02-25T11:59:56.83 0.1 positive manual P 262 6.3936 133 -0.16 97
IV.TB03.DHZ. 2021-02-25T11:59:56.73 0.1 undecidable manual P 282 6.1938 134 -0.23 96
IV.ATFO.HHZ. 2021-02-25T11:59:56.93 0.1 positive manual P 111 7.3815 129 -0.21 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:0.5 0.0000524 0.42 AML other m 2021-02-25T12:00:00.49
IV.MURB.HHE. ML:1.2 0.000199 0.58 AML other m 2021-02-25T12:00:01.08
IV.ATPI.EHE. ML:0.4 0.000042800000000000004 0.26 AML other m 2021-02-25T12:00:01.75
IV.MURB.HHN. ML:1.1 0.00014500000000000003 0.18 AML other m 2021-02-25T12:00:01.78
IV.PIEI.HHN. ML:0.8 0.0000533 0.24 AML other m 2021-02-25T12:00:02.14
IV.PIEI.HHE. ML:0.9 0.00008125 1.06 AML other m 2021-02-25T12:00:02.35
IV.ATCC.EHN. ML:1.0 0.00005715 0.26 AML other m 2021-02-25T12:00:05.05
IV.ATCC.EHE. ML:0.9 0.00004654999999999999 1.28 AML other m 2021-02-25T12:00:05.69
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