Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 25-07-2021 and time 17:46:57 (Italy) in region 3 km SW Fossato di Vico (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km SW Fossato di Vico (PG), on

  • 25-07-2021 15:46:57 (UTC)
  • 25-07-2021 17:46:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2740, 12.7320 at 12 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Fossato di Vico PG 4 2840 2840
Gualdo Tadino PG 6 15208 18048
Sigillo PG 7 2404 20452
Costacciaro PG 10 1216 21668
Gubbio PG 15 32216 53884
Scheggia e Pascelupo PG 15 1393 55277
Fabriano AN 16 31480 86757
Valfabbrica PG 16 3389 90146
Esanatoglia MC 18 2034 92180
Nocera Umbra PG 19 5839 98019
Fiuminata MC 19 1402 99421

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Perugia (166134 inhabitants)
35 Km N of Foligno (57155 inhabitants)
68 Km SW of Fano (60888 inhabitants)
72 Km E of Arezzo (99543 inhabitants)
72 Km S of Pesaro (94582 inhabitants)
74 Km SW of Ancona (100861 inhabitants)
80 Km N of Terni (111501 inhabitants)
89 Km S of Rimini (147750 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
Bulletin
Rev1000 		ML 0.8 2021-07-25
15:46:57		 43.2738 12.7317 12 2021-12-29
11:12:16		 Bollettino Sismico Italiano INGV 93558521
Reviewed
Rev100 		ML 0.8 2021-07-25
15:46:57		 43.2713 12.7207 12 2021-07-25
15:54:46		 Sala Sismica INGV-Roma 93201831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-25 15:46:57 ± 0.04
Latitude 43.2738 ± 0.0018
Longitude 12.7317 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93558521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 278
Semi-minor axis of confidence ellipse (meter) 56
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 233
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
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) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.02968
Epicentral distance of station farthest from the epicenter (degree) 0.38941
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 93201831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-25 15:54:46

ML:0.8

Field Value
Value 0.8
Uncertainty 0.4
Num. used stations 14
Type of magnitude ML
Reference to an origin 93558521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-02 11:53:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TB03.DHZ.01 2021-07-25T15:47:08.12 0.6 undecidable manual S 299 29.5482 93 0.1 47
IV.ATLO.EHZ. 2021-07-25T15:47:07.18 0.1 undecidable manual S 280 26.5512 93 -0.06 96
IV.ATVO.HHZ. 2021-07-25T15:47:07.69 0.6 undecidable manual S 295 28.8489 93 -0.15 47
IV.MML1.EHZ. 2021-07-25T15:47:07.35 0.3 undecidable manual S 132 26.3514 93 0.19 70
IV.CSP1.EHZ. 2021-07-25T15:47:06.03 1.0 undecidable manual P 118 43.2234 91 0.27 22
IV.ASSB.HHZ. 2021-07-25T15:47:06.96 0.6 undecidable manual S 193 26.3514 93 -0.2 46
IV.ATFO.HHZ. 2021-07-25T15:47:04.70 0.6 undecidable manual S 309 16.5723 101 0.13 48
IV.TB03.DHZ.01 2021-07-25T15:47:04.00 0.1 undecidable manual P 299 29.5482 93 0.35 89
IV.ASSB.HHZ. 2021-07-25T15:47:03.00 0.1 undecidable manual P 193 26.3514 93 -0.15 94
IV.ATVO.HHZ. 2021-07-25T15:47:03.49 0.1 undecidable manual P 295 28.8489 93 -0.05 95
IV.FRON.EHZ. 2021-07-25T15:47:03.35 0.1 undecidable manual P 359 27.0507 93 0.08 95
IV.MML1.EHZ. 2021-07-25T15:47:03.10 0.1 undecidable manual P 132 26.3514 93 -0.05 95
IV.TB01.DHZ.01 2021-07-25T15:47:03.16 0.1 undecidable manual P 297 26.751 93 -0.05 95
IV.PIEI.HHZ. 2021-07-25T15:47:03.98 0.3 undecidable manual P 331 33.1446 92 -0.22 68
IV.ATLO.EHZ. 2021-07-25T15:47:03.05 0.1 undecidable manual P 280 26.5512 93 -0.14 94
IV.ATCC.EHZ. 2021-07-25T15:47:03.62 0.1 undecidable manual S 217 12.2766 115 0.12 96
IV.ATBU.EHZ. 2021-07-25T15:47:03.21 0.1 undecidable manual P 327 26.8509 93 -0.02 96
IV.SSFR.HHN. 2021-07-25T15:47:02.01 0.1 undecidable manual P 13 18.4704 98 0.06 97
IV.ATCC.EHZ. 2021-07-25T15:47:01.12 0.1 undecidable manual P 217 12.2766 115 0.08 97
IV.ATFO.HHZ. 2021-07-25T15:47:01.68 0.1 undecidable manual P 309 16.5723 101 0.03 97
IV.FOSV.EHZ. 2021-07-25T15:47:01.77 0.1 undecidable manual S 46 3.2967 160 -0.11 97
IV.ATSC.EHE. 2021-07-25T15:47:01.65 0.1 undecidable manual P 348 17.0718 100 -0.09 96
IV.FOSV.EHZ. 2021-07-25T15:47:00.14 0.1 undecidable manual P 46 3.2967 160 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHN. ML:0.6 0.000053313275 0.192 AML other m 2021-07-25T15:47:02.14
IV.FOSV.EHE. ML:0.1 0.000021112077 0.0512 AML other m 2021-07-25T15:47:02.16
IV.ATCC.EHN. ML:1.1 0.00014250000000000002 0.14 AML other m 2021-07-25T15:47:03.92
IV.ATCC.EHE. ML:1.2 0.00018099999999999998 0.12 AML other m 2021-07-25T15:47:03.86
IV.ASSB.HHN. ML:0.6 0.00002120595 0.0768 AML other m 2021-07-25T15:47:07.35
IV.MML1.EHN. ML:0.4 0.0000144580565 0.192 AML other m 2021-07-25T15:47:07.48
IV.ASSB.HHE. ML:0.6 0.000018150070000000002 0.0896 AML other m 2021-07-25T15:47:07.88
IV.MML1.EHE. ML:0.4 0.0000152020005 0.1408 AML other m 2021-07-25T15:47:08.26
IV.MML1.HNN. ML:1.2 0.000087320495 0.7936 AML other m 2021-07-25T15:47:09.20
IV.ATVO.HHE. ML:0.7 0.000022842894999999997 0.5312 AML other m 2021-07-25T15:47:09.58
IV.ATVO.HHN. ML:0.5 0.000015524665 0.3904 AML other m 2021-07-25T15:47:09.65
IV.CSP1.EHE. ML:1.4 0.00007751127500000001 0.7488 AML other m 2021-07-25T15:47:11.25
IV.CSP1.EHN. ML:1.4 0.00007025038 1.264 AML other m 2021-07-25T15:47:12.25
IV.MML1.HNE. ML:1.2 0.00008968787 0.6912 AML other m 2021-07-25T15:47:17.64
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