Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 10-08-2021 and time 08:21:29 (Italy) in region 5 km W Fabriano (AN)

A magnitude ML 0.8 earthquake occured in region: 5 km W Fabriano (AN), on

  • 10-08-2021 06:21:29 (UTC)
  • 10-08-2021 08:21:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3440, 12.8430 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
Fabriano AN 5 31480 31480
Sigillo PG 8 2404 33884
Fossato di Vico PG 9 2840 36724
Sassoferrato AN 10 7285 44009
Costacciaro PG 11 1216 45225
Cerreto d'Esi AN 12 3817 49042
Genga AN 12 1797 50839
Esanatoglia MC 13 2034 52873
Gualdo Tadino PG 13 15208 68081
Scheggia e Pascelupo PG 16 1393 69474
Matelica MC 17 9981 79455
Serra Sant'Abbondio PU 17 1027 80482
Serra San Quirico AN 18 2850 83332
Fiuminata MC 19 1402 84734
Arcevia AN 19 4612 89346
Poggio San Vicino MC 19 246 89592

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km N of Foligno (57155 inhabitants)
45 Km NE of Perugia (166134 inhabitants)
57 Km S of Fano (60888 inhabitants)
63 Km W of Ancona (100861 inhabitants)
63 Km S of Pesaro (94582 inhabitants)
79 Km E of Arezzo (99543 inhabitants)
83 Km S of Rimini (147750 inhabitants)
89 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 0.8 2021-08-10
06:21:29		 43.3443 12.8432 11 2021-08-10
06:28:30		 Sala Sismica INGV-Roma 93910581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-10 06:21:29 ± 0.04
Latitude 43.3443 ± 0.0027
Longitude 12.8432 ± 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 93910581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 261
Semi-minor axis of confidence ellipse (meter) 208
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 4
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
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) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.36512
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:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 93910581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-10 06:28:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2021-08-10T06:21:40.97 0.6 undecidable manual S 277 35.4423 50 -0.19 46
IV.PIEI.HHZ. 2021-08-10T06:21:40.42 0.6 undecidable manual S 311 32.6451 50 0.01 48
IV.MURB.HHZ. 2021-08-10T06:21:39.39 0.6 undecidable manual S 251 27.2505 50 0.42 45
IV.MML1.EHZ. 2021-08-10T06:21:38.81 0.6 undecidable manual S 158 27.6501 50 -0.26 46
IV.ATCC.EHZ. 2021-08-10T06:21:38.13 0.6 undecidable manual S 223 24.1536 50 0 49
IV.EL6.EHZ. 2021-08-10T06:21:37.34 0.6 undecidable manual S 94 20.9679 50 0.06 49
IV.CSP1.EHZ. 2021-08-10T06:21:37.00 0.6 negative manual P 134 40.5261 50 0.11 47
IV.FRON.EHZ. 2021-08-10T06:21:37.37 0.6 undecidable manual S 334 21.4674 50 -0.05 49
IV.ATFO.HHZ. 2021-08-10T06:21:37.63 0.6 undecidable manual S 277 22.0668 50 0.05 49
IV.ARVD.HHZ. 2021-08-10T06:21:36.75 0.6 undecidable manual S 25 18.7701 50 0.04 49
IV.ATVO.HHZ. 2021-08-10T06:21:36.14 0.6 negative manual P 277 35.4423 50 0.03 48
IV.MMUR.HNE. 2021-08-10T06:21:36.21 0.6 undecidable manual S 49 16.4724 50 0.12 48
IV.PIEI.HHZ. 2021-08-10T06:21:35.51 0.6 undecidable manual P 311 32.6451 50 -0.17 47
IV.MPAG.EHZ. 2021-08-10T06:21:35.95 1.0 negative manual P 348 32.3454 50 0.32 23
IV.ATSC.EHZ. 2021-08-10T06:21:35.77 0.6 undecidable manual S 305 15.3735 50 -0.04 50
IV.ATFO.HHZ. 2021-08-10T06:21:34.08 0.1 positive manual P 277 22.0668 50 0.03 98
IV.ATCC.EHZ. 2021-08-10T06:21:34.29 0.3 negative manual P 223 24.1536 50 -0.08 72
IV.MML1.EHZ. 2021-08-10T06:21:34.70 1.0 undecidable manual P 158 27.6501 50 -0.21 23
IV.MURB.HHZ. 2021-08-10T06:21:34.99 0.6 negative manual P 251 27.2505 50 0.14 47
IV.ATSC.EHZ. 2021-08-10T06:21:33.01 0.1 undecidable manual P 305 15.3735 50 -0.02 99
IV.MMUR.HNE. 2021-08-10T06:21:33.30 0.1 undecidable manual P 49 16.4724 50 0.11 97
IV.EL6.EHZ. 2021-08-10T06:21:33.93 0.1 negative manual P 94 20.9679 50 0.05 98
IV.FRON.EHZ. 2021-08-10T06:21:33.94 0.3 positive manual P 334 21.4674 50 -0.02 74
IV.ARVD.HHZ. 2021-08-10T06:21:32.75 1.0 undecidable manual P 25 18.7701 50 -0.8 20
IV.FOSV.HNN. 2021-08-10T06:21:32.02 0.1 undecidable manual P 230 8.5803 142 -0.01 100
IV.SSFR.HNZ. 2021-08-10T06:21:32.30 0.3 undecidable manual P 334 11.2776 134 -0.1 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHE. ML:0.6 0.000028999999999999997 1.64 AML other m 2021-08-10T06:21:36.02
IV.ARVD.HHN. ML:0.7 0.000037449999999999995 0.08 AML other m 2021-08-10T06:21:37.32
IV.FRON.EHE. ML:0.6 0.000032 1.04 AML other m 2021-08-10T06:21:38.21
IV.FRON.EHN. ML:0.6 0.00002895 0.5 AML other m 2021-08-10T06:21:38.90
IV.MML1.EHE. ML:0.7 0.0000265 1.08 AML other m 2021-08-10T06:21:39.16
IV.MURB.HHN. ML:1.2 0.00008245 0.24 AML other m 2021-08-10T06:21:39.79
IV.MML1.EHN. ML:0.6 0.000022100000000000002 0.64 AML other m 2021-08-10T06:21:40.58
IV.PIEI.HHN. ML:0.8 0.000028250000000000002 0.1 AML other m 2021-08-10T06:21:40.68
IV.PIEI.HHE. ML:1.1 0.000056750000000000004 0.24 AML other m 2021-08-10T06:21:40.81
IV.ATVO.HHN. ML:0.6 0.0000149 0.28 AML other m 2021-08-10T06:21:41.46
IV.MURB.HHE. ML:1.2 0.00007384999999999999 0.22 AML other m 2021-08-10T06:21:41.57
IV.ATVO.HHE. ML:0.4 0.000011362235 0.1792 AML other m 2021-08-10T06:21:41.72
IV.ATCC.EHE. ML:1.0 0.000056850594999999994 0.1984 AML other m 2021-08-10T06:21:38.32
IV.ATCC.EHN. ML:0.8 0.00003821168 0.0992 AML other m 2021-08-10T06:21:38.38
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