Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.1 on date 14-08-2021 and time 01:56:50 (UTC) in region 1 km NW Fossato di Vico (PG)

A magnitude ML 0.1 earthquake occured in region: 1 km NW Fossato di Vico (PG), on

  • 14-08-2021 01:56:50 (UTC)
  • 14-08-2021 03:56:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3000, 12.7520 at 11 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
Fossato di Vico PG 1 2840 2840
Sigillo PG 4 2404 5244
Costacciaro PG 7 1216 6460
Gualdo Tadino PG 8 15208 21668
Fabriano AN 13 31480 53148
Scheggia e Pascelupo PG 13 1393 54541
Gubbio PG 15 32216 86757
Esanatoglia MC 17 2034 88791
Sassoferrato AN 18 7285 96076
Cerreto d'Esi AN 19 3817 99893
Fiuminata MC 19 1402 101295
Valfabbrica PG 20 3389 104684

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Perugia (166134 inhabitants)
38 Km N of Foligno (57155 inhabitants)
64 Km SW of Fano (60888 inhabitants)
69 Km S of Pesaro (94582 inhabitants)
71 Km W of Ancona (100861 inhabitants)
73 Km E of Arezzo (99543 inhabitants)
83 Km N of Terni (111501 inhabitants)
86 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
Reviewed
Rev100 		ML 0.1 2021-08-14
01:56:50		 43.3002 12.7523 11 2021-08-14
02:06:45		 Sala Sismica INGV-Roma 94112361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-14 01:56:50 ± 0.03
Latitude 43.3002 ± 0.0018
Longitude 12.7523 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94112361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 237
Semi-minor axis of confidence ellipse (meter) 208
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 181
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.06
Epicentral distance of station closest to the epicenter (degree) 0.00809
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 94112361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-14 02:06:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2021-08-14T01:57:01.41 0.3 undecidable manual S 326 31.4463 50 0.05 71
IV.ARVD.HHZ. 2021-08-14T01:57:00.16 0.3 undecidable manual S 35 26.751 50 0.06 71
IV.ATFO.HHZ. 2021-08-14T01:56:57.28 0.3 undecidable manual S 297 16.3725 124 0 74
IV.NARO.HHZ. 2021-08-14T01:56:57.48 1.0 positive manual P 338 37.1295 50 -0.15 23
IV.ATCC.EHZ. 2021-08-14T01:56:57.09 0.3 undecidable manual S 215 15.6732 125 0.01 74
IV.PIEI.HHZ. 2021-08-14T01:56:56.54 1.0 negative manual P 326 31.4463 50 -0.21 23
IV.ARVD.HHZ. 2021-08-14T01:56:55.94 0.6 positive manual P 35 26.751 50 -0.09 47
IV.ATCC.EHZ. 2021-08-14T01:56:54.30 0.6 negative manual P 215 15.6732 125 0.02 49
IV.ATFO.HHZ. 2021-08-14T01:56:54.41 0.6 undecidable manual P 297 16.3725 124 0.01 49
IV.FOSV.EHZ. 2021-08-14T01:56:54.22 0.1 undecidable manual S 130 0.8991 175 -0.03 100
IV.FOSV.EHZ. 2021-08-14T01:56:52.72 0.3 undecidable manual P 130 0.8991 175 0.07 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHE. ML:0.4 0.0000265003 0.24 AML other m 2021-08-14T01:56:57.31
IV.ATCC.EHN. ML:0.2 0.000016519140000000002 0.1392 AML other m 2021-08-14T01:56:57.49
IV.ARVD.HHE. ML:0.0 0.000006615306 0.0608 AML other m 2021-08-14T01:57:00.20
IV.ARVD.HHN. ML:0.0 0.0000048918755 0.0992 AML other m 2021-08-14T01:57:00.31
IV.PIEI.HHE. ML:0.0 0.000005956456 0.0816 AML other m 2021-08-14T01:57:02.09
IV.PIEI.HHN. ML:0.0 0.0000026956982 0.0608 AML other m 2021-08-14T01:57:01.98
IV.NARO.HHE. ML:0.0 0.000002449049 0.0592 AML other m 2021-08-14T01:57:04.03
IV.NARO.HHN. ML:0.0 0.0000015509705 0.0608 AML other m 2021-08-14T01:56:57.69
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