Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 24-02-2021 and time 12:54:10 (UTC) in region 9 km W Montone (PG)

A magnitude ML 1.3 earthquake occured in region: 9 km W Montone (PG), on

  • 24-02-2021 12:54:10 (UTC)
  • 24-02-2021 13:54:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3470, 12.2220 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
Montone PG 9 1680 1680
Umbertide PG 10 16681 18361
Monte Santa Maria Tiberina PG 11 1183 19544
Città di Castello PG 12 39913 59457
Lisciano Niccone PG 13 613 60070
Monterchi AR 18 1757 61827
Citerna PG 19 3531 65358
Passignano sul Trasimeno PG 19 5746 71104
Tuoro sul Trasimeno PG 20 3780 74884

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Perugia (166134 inhabitants)
31 Km E of Arezzo (99543 inhabitants)
58 Km NW of Foligno (57155 inhabitants)
72 Km E of Siena (53903 inhabitants)
84 Km SW of Pesaro (94582 inhabitants)
84 Km SW of Rimini (147750 inhabitants)
85 Km SW of Fano (60888 inhabitants)
88 Km S of Cesena (96758 inhabitants)
91 Km SE of Firenze (382808 inhabitants)
94 Km NW of Terni (111501 inhabitants)
96 Km E of Scandicci (50609 inhabitants)
99 Km S 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 1.3 2021-02-24
12:54:10		 43.3472 12.2223 12 2021-02-24
13:26:39		 Sala Sismica INGV-Roma 87452961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-24 12:54:10 ± 0.05
Latitude 43.3472 ± 0.0027
Longitude 12.2223 ± 0.0037
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 87452961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 26
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.44157
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 87452961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-24 13:26:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2021-02-24T12:54:22.16 0.6 undecidable manual S 50 32.745 93 0.43 44
IV.PARC.HHZ. 2021-02-24T12:54:21.86 0.3 undecidable manual S 2 33.4443 93 -0.06 72
IV.SSP9.EHZ. 2021-02-24T12:54:20.25 0.6 undecidable manual S 344 26.1516 94 0.26 47
IV.ATFO.HHZ. 2021-02-24T12:54:20.54 0.3 undecidable manual S 85 28.2495 94 0.01 73
IV.MURB.HHZ. 2021-02-24T12:54:20.32 0.3 undecidable manual S 111 26.1516 94 0.35 69
IV.MGAB.HHZ. 2021-02-24T12:54:19.59 0.1 negative manual P 191 49.0176 92 0.09 93
IV.ATPC.HNE. 2021-02-24T12:54:19.60 0.3 undecidable manual S 52 24.0537 95 0.19 71
IV.CAFI.HNE. 2021-02-24T12:54:18.35 0.1 undecidable manual S 265 20.7681 97 -0.19 95
IV.CRE.HHZ. 2021-02-24T12:54:18.10 0.3 undecidable manual P 324 37.2294 92 0.42 66
IV.ATVO.HHZ. 2021-02-24T12:54:17.09 0.1 undecidable manual S 75 15.3735 107 -0.04 100
IV.PIEI.HHZ. 2021-02-24T12:54:17.00 0.1 undecidable manual P 50 32.745 93 0.01 97
IV.BADI.EHZ. 2021-02-24T12:54:17.45 0.3 undecidable manual S 6 18.1707 100 -0.4 69
IV.ATPI.EHZ. 2021-02-24T12:54:17.81 0.3 undecidable manual S 52 18.4704 100 -0.14 73
IV.PARC.HHZ. 2021-02-24T12:54:17.03 0.1 undecidable manual P 2 33.4443 93 -0.08 95
IV.CDCA.HNZ. 2021-02-24T12:54:16.33 0.3 undecidable manual S 4 12.3765 117 -0.06 75
IV.SSP9.EHZ. 2021-02-24T12:54:16.20 0.1 undecidable manual P 344 26.1516 94 0.21 94
IV.ATLO.EHN. 2021-02-24T12:54:16.81 0.3 undecidable manual S 103 15.3735 107 -0.31 71
IV.ATFO.HHZ. 2021-02-24T12:54:16.15 0.3 undecidable manual P 85 28.2495 94 -0.16 71
IV.MURB.HHZ. 2021-02-24T12:54:15.94 0.3 undecidable manual P 111 26.1516 94 -0.04 73
IV.ATPC.HNE. 2021-02-24T12:54:15.62 0.1 undecidable manual P 52 24.0537 95 -0.03 98
IV.ATMC.EHE. 2021-02-24T12:54:15.93 0.3 undecidable manual S 348 11.2776 121 -0.21 73
IV.CAFI.HNE. 2021-02-24T12:54:15.11 0.1 undecidable manual P 265 20.7681 97 -0.05 98
IV.ATVA.EHN. 2021-02-24T12:54:15.28 0.3 undecidable manual S 146 9.1797 130 -0.39 71
IV.ATVO.HHZ. 2021-02-24T12:54:14.29 0.1 positive manual P 75 15.3735 107 -0.05 99
IV.BADI.EHZ. 2021-02-24T12:54:14.59 0.1 undecidable manual P 6 18.1707 100 -0.16 96
IV.CDCA.HNZ. 2021-02-24T12:54:14.25 0.1 undecidable manual P 4 12.3765 117 0.34 94
IV.ATMI.HHZ. 2021-02-24T12:54:14.97 0.1 undecidable manual S 111 3.996 157 0.12 98
IV.ATPI.EHZ. 2021-02-24T12:54:14.69 0.1 undecidable manual P 52 18.4704 100 -0.12 97
IV.ATLO.EHN. 2021-02-24T12:54:14.24 0.1 undecidable manual P 103 15.3735 107 -0.1 98
IV.ATMI.HHZ. 2021-02-24T12:54:13.24 0.1 undecidable manual P 111 3.996 157 0.22 97
IV.ATVA.EHN. 2021-02-24T12:54:13.53 0.1 undecidable manual P 146 9.1797 130 0.04 100
IV.ATMC.EHE. 2021-02-24T12:54:13.71 0.1 undecidable manual P 348 11.2776 121 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATMI.HHE. ML:2.0 0.0014700000000000002 0.22 AML other m 2021-02-24T12:54:15.12
IV.ATMI.HHN. ML:2.1 0.00173 0.86 AML other m 2021-02-24T12:54:15.53
IV.ATVO.HHN. ML:1.1 0.00011999999999999999 0.58 AML other m 2021-02-24T12:54:17.49
IV.ATVO.HHE. ML:1.3 0.0001815 0.44 AML other m 2021-02-24T12:54:17.49
IV.ATPI.EHN. ML:1.0 0.00007625 1.62 AML other m 2021-02-24T12:54:17.13
IV.BADI.EHE. ML:1.5 0.0002335 1.72 AML other m 2021-02-24T12:54:18.99
IV.ATPI.EHE. ML:1.1 0.0000902 1.56 AML other m 2021-02-24T12:54:18.97
IV.BADI.EHN. ML:1.4 0.000209 0.58 AML other m 2021-02-24T12:54:18.28
IV.MURB.HHE. ML:1.6 0.00021799999999999999 0.34 AML other m 2021-02-24T12:54:20.82
IV.ATFO.HHN. ML:1.2 0.000076 1.34 AML other m 2021-02-24T12:54:21.22
IV.ATFO.HHE. ML:1.4 0.00013385 0.2 AML other m 2021-02-24T12:54:21.17
IV.MURB.HHN. ML:1.6 0.0002175 0.22 AML other m 2021-02-24T12:54:21.50
IV.PARC.HHE. ML:1.4 0.00010344999999999998 0.84 AML other m 2021-02-24T12:54:22.80
IV.PIEI.HHE. ML:1.0 0.00004055 0.54 AML other m 2021-02-24T12:54:22.47
IV.PIEI.HHN. ML:0.8 0.0000299 0.86 AML other m 2021-02-24T12:54:22.53
IV.PARC.HHN. ML:1.3 0.00007924999999999999 1.5 AML other m 2021-02-24T12:54:23.00
IV.MGAB.HHE. ML:1.2 0.0000378 1.12 AML other m 2021-02-24T12:54:29.16
IV.MGAB.HHN. ML:1.3 0.0000512 1.18 AML other m 2021-02-24T12:54:30.14
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