Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 06-10-2021 and time 18:22:42 (UTC) in region 4 km SW Sassoferrato (AN)

A magnitude ML 0.9 earthquake occured in region: 4 km SW Sassoferrato (AN), on

  • 06-10-2021 18:22:42 (UTC)
  • 06-10-2021 20:22:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4070, 12.8290 at 15 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
Sassoferrato AN 4 7285 7285
Genga AN 9 1797 9082
Fabriano AN 10 31480 40562
Serra Sant'Abbondio PU 11 1027 41589
Costacciaro PG 11 1216 42805
Sigillo PG 11 2404 45209
Scheggia e Pascelupo PG 13 1393 46602
Fossato di Vico PG 14 2840 49442
Arcevia AN 14 4612 54054
Frontone PU 14 1300 55354
Serra San Quirico AN 16 2850 58204
Cerreto d'Esi AN 16 3817 62021
Pergola PU 17 6333 68354
Cantiano PU 18 2245 70599
Mergo AN 18 1037 71636
Esanatoglia MC 20 2034 73670
Gualdo Tadino PG 20 15208 88878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km NE of Perugia (166134 inhabitants)
51 Km SW of Fano (60888 inhabitants)
51 Km N of Foligno (57155 inhabitants)
57 Km S of Pesaro (94582 inhabitants)
60 Km W of Ancona (100861 inhabitants)
76 Km S of Rimini (147750 inhabitants)
77 Km E of Arezzo (99543 inhabitants)
94 Km SE of Cesena (96758 inhabitants)
95 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 0.9 2021-10-06
18:22:42		 43.4072 12.8288 15 2021-10-06
18:38:32		 Sala Sismica INGV-Roma 96297441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-06 18:22:42 ± 0.07
Latitude 43.4072 ± 0.0036
Longitude 12.8288 ± 0.0037
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96297441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 66
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 172
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 40
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32016
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 20
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 96297441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-06 18:38:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SARZ.HHZ. 2021-10-06T18:24:20.83 3.0 undecidable manual Sg 23.799999 0
IV.CRAC.EHZ. 2021-10-06T18:24:11.77 3.0 undecidable manual Sn -8.42 0
ST.CARE.HNZ. 2021-10-06T18:24:08.78 3.0 undecidable manual Sg 4.93 0
OT.OT17.EHZ. 2021-10-06T18:23:52.55 3.0 undecidable manual Sg 7.46 0
ST.GAGG.HHZ. 2021-10-06T18:23:51.25 3.0 undecidable manual Sn -3.49 0
GU.BHB.HHZ. 2021-10-06T18:23:38.35 3.0 undecidable manual Pn 4.55 0
IX.SCL3.EHZ.02 2021-10-06T18:23:33.90 3.0 negative manual Pg 10.59 0
OX.SABO.HHZ. 2021-10-06T18:23:28.10 3.0 undecidable manual Sn -9.99 0
MN.TRI.HHZ. 2021-10-06T18:23:26.63 3.0 undecidable manual Sn -9.99 0
ST.CARE.HNZ. 2021-10-06T18:23:24.89 3.0 negative manual Pg 1.46 0
ST.GAGG.HHZ. 2021-10-06T18:23:23.47 3.0 undecidable manual Pg 5.16 0
IV.MBAL.EHZ. 2021-10-06T18:23:18.47 3.0 positive manual Pg 4.26 0
IV.MNTT.EHZ. 2021-10-06T18:23:11.18 3.0 undecidable manual Sg 4.2 0
IT.FIE.HGZ. 2021-10-06T18:23:11.97 3.0 undecidable manual Sn -1.06 0
IV.PP3.EHZ. 2021-10-06T18:23:08.17 3.0 undecidable manual Sg 1.78 0
OT.OT17.EHZ. 2021-10-06T18:23:05.47 3.0 undecidable manual Pn -7.42 0
IV.COR1.EHZ. 2021-10-06T18:23:03.82 3.0 undecidable manual Sg 0.97 0
IV.FIR.HHZ. 2021-10-06T18:23:01.52 3.0 negative manual Pg 6.51 0
IV.TB03.DHZ.01 2021-10-06T18:22:54.04 0.3 undecidable manual S 269 33.744 99 0.2 71
IV.ATPI.HNZ. 2021-10-06T18:22:54.39 0.3 undecidable manual S 278 34.743 99 0.29 69
IV.ATLO.EHZ. 2021-10-06T18:22:54.29 0.3 undecidable manual S 253 35.5422 99 -0.02 73
IV.ATPC.HHZ. 2021-10-06T18:22:53.40 0.3 undecidable manual S 285 31.0467 101 0.26 70
IV.MURB.HHZ. 2021-10-06T18:22:53.14 0.3 undecidable manual S 237 29.2485 102 0.46 67
IV.TB01.DHZ.01 2021-10-06T18:22:53.37 0.6 undecidable manual S 265 31.8459 100 0.03 49
IV.TB02.DHZ.01 2021-10-06T18:22:53.94 0.3 undecidable manual S 263 34.0437 99 0.01 73
IV.CING.HNE. 2021-10-06T18:22:53.26 0.3 undecidable manual S 97 29.748 102 0.46 67
IV.NARO.HHZ. 2021-10-06T18:22:52.90 0.3 undecidable manual S 319 30.1476 101 -0.01 74
IV.ATCC.EHZ. 2021-10-06T18:22:52.96 0.3 undecidable manual S 212 28.9488 102 0.37 69
IV.PIEI.HHZ. 2021-10-06T18:22:52.03 0.3 undecidable manual S 301 27.6501 103 -0.21 71
IV.CSP1.EHZ. 2021-10-06T18:22:51.19 3.0 positive manual Pg 1.63 0
IV.ATBU.EHZ. 2021-10-06T18:22:51.63 0.3 undecidable manual S 289 23.8539 107 0.37 69
IV.MPAG.EHZ. 2021-10-06T18:22:51.76 0.3 undecidable manual S 347 25.2525 105 0.13 72
IV.TERO.HHZ. 2021-10-06T18:22:50.82 3.0 undecidable manual Pn -2.97 0
IV.SNTG.HHZ. 2021-10-06T18:22:50.05 0.3 undecidable manual S 152 19.1697 113 -0.04 74
IV.ASSB.HHZ. 2021-10-06T18:22:50.17 3.0 positive manual Pn 1.47 0
IV.FDMO.HHZ. 2021-10-06T18:22:50.94 3.0 positive manual Pg 1.58 0
IV.ATFO.HHZ. 2021-10-06T18:22:50.56 0.3 undecidable manual S 258 21.2676 110 -0.04 74
IV.MMUR.HNE. 2021-10-06T18:22:49.27 0.3 undecidable manual S 74 14.0748 125 0.36 70
IV.MML1.EHZ. 2021-10-06T18:22:49.12 3.0 positive manual Pn 0.31 0
IV.ATLO.EHZ. 2021-10-06T18:22:49.28 0.1 undecidable manual P 253 35.5422 99 0.05 97
IV.TB03.DHZ.01 2021-10-06T18:22:49.06 0.3 undecidable manual P 269 33.744 99 0.1 72
IV.ATPI.HNZ. 2021-10-06T18:22:49.03 0.3 undecidable manual P 278 34.743 99 -0.08 72
IV.PE3.EHZ. 2021-10-06T18:22:49.30 3.0 negative manual Pn 0.18 0
IV.FOSV.EHZ. 2021-10-06T18:22:48.53 0.3 undecidable manual S 204 13.5753 126 -0.27 72
IV.TB02.DHZ.01 2021-10-06T18:22:48.97 1.0 undecidable manual P 263 34.0437 99 -0.05 24
IV.CING.HNE. 2021-10-06T18:22:48.66 1.0 undecidable manual P 97 29.748 102 0.29 23
IV.FRON.EHZ. 2021-10-06T18:22:48.92 0.3 undecidable manual S 326 14.7741 123 -0.14 74
IV.NARO.HHZ. 2021-10-06T18:22:48.21 0.1 undecidable manual P 319 30.1476 101 -0.21 94
IV.ATPC.HHZ. 2021-10-06T18:22:48.58 0.1 undecidable manual P 285 31.0467 101 0.02 98
IV.ARVD.HHZ. 2021-10-06T18:22:48.86 0.3 undecidable manual S 42 13.5753 126 0.07 75
IV.ATSC.EHZ. 2021-10-06T18:22:48.13 0.3 undecidable manual S 279 11.5773 132 -0.25 72
IV.ATCC.EHZ. 2021-10-06T18:22:48.25 0.1 undecidable manual P 212 28.9488 102 0.01 98
IV.MURB.HHZ. 2021-10-06T18:22:48.42 0.1 undecidable manual P 237 29.2485 102 0.13 96
IV.TB01.DHZ.01 2021-10-06T18:22:48.78 0.1 undecidable manual P 265 31.8459 100 0.1 96
IV.PIEI.HHZ. 2021-10-06T18:22:47.77 0.1 undecidable manual P 301 27.6501 103 -0.27 93
IV.MPAG.EHZ. 2021-10-06T18:22:47.67 0.3 undecidable manual P 347 25.2525 105 -0.02 74
IV.EL6.EHZ. 2021-10-06T18:22:47.71 3.0 positive manual Pn -1.14 0
IV.ATBU.EHZ. 2021-10-06T18:22:47.54 0.1 undecidable manual P 289 23.8539 107 0.06 98
IV.PCRO.HNZ. 2021-10-06T18:22:46.21 3.0 undecidable manual P -4.93 0
IV.ATFO.HHZ. 2021-10-06T18:22:46.45 0.3 undecidable manual P 258 21.2676 110 -0.64 64
IV.FRON.EHZ. 2021-10-06T18:22:46.15 0.1 undecidable manual P 326 14.7741 123 -0.06 100
IV.SNTG.HHZ. 2021-10-06T18:22:46.65 0.1 undecidable manual P 152 19.1697 113 -0.15 97
IV.ARVD.HHZ. 2021-10-06T18:22:46.17 0.1 undecidable manual P 42 13.5753 126 0.12 99
IV.FOSV.EHZ. 2021-10-06T18:22:45.95 0.1 undecidable manual P 204 13.5753 126 -0.1 99
IV.MMUR.HNE. 2021-10-06T18:22:45.35 0.1 undecidable manual P 74 14.0748 125 -0.77 82
IV.ATSC.EHZ. 2021-10-06T18:22:45.74 0.1 undecidable manual P 279 11.5773 132 -0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHN. ML:1.2 0.000122 0.32 AML other m 2021-10-06T18:22:49.11
IV.FRON.EHE. ML:0.8 0.000050711635 0.064 AML other m 2021-10-06T18:22:49.34
IV.ATFO.HHN. ML:1.0 0.00005323799 0.1664 AML other m 2021-10-06T18:22:51.94
IV.ATFO.HHE. ML:1.0 0.00006261895 0.2048 AML other m 2021-10-06T18:22:51.94
IV.MPAG.EHE. ML:0.8 0.0000361013085 0.1152 AML other m 2021-10-06T18:22:52.03
IV.MPAG.EHN. ML:0.8 0.00002892709 0.0768 AML other m 2021-10-06T18:22:52.21
IV.FOSV.EHE. ML:0.8 0.00005203107 0.0512 AML other m 2021-10-06T18:22:48.88
IV.FOSV.EHN. ML:0.7 0.000045415200000000005 0.1152 AML other m 2021-10-06T18:22:48.93
IV.ARVD.HHE. ML:0.8 0.000060002054999999996 0.0768 AML other m 2021-10-06T18:22:49.13
IV.ARVD.HHN. ML:0.7 0.00004407608 0.0768 AML other m 2021-10-06T18:22:49.13
IV.SNTG.HHE. ML:0.8 0.000040038745 0.1408 AML other m 2021-10-06T18:22:51.28
IV.SNTG.HHN. ML:1.0 0.00007508556 0.1408 AML other m 2021-10-06T18:22:50.41
IV.SNTG.HNE. ML:0.9 0.000048580239999999996 0.1408 AML other m 2021-10-06T18:22:51.21
IV.SNTG.HNN. ML:1.1 0.0000812320765 0.128 AML other m 2021-10-06T18:22:50.34
IV.MPAG.HNE. ML:0.9 0.000045569089999999996 0.128 AML other m 2021-10-06T18:22:52.03
IV.MPAG.HNN. ML:1.5 0.00015745409500000001 0.5248 AML other m 2021-10-06T18:23:00.16
IV.EL6.EHE. ML:0.6 0.00002428115 0.1536 AML other m 2021-10-06T18:22:52.79
IV.EL6.EHN. ML:0.6 0.00002189049 0.1536 AML other m 2021-10-06T18:22:52.28
IV.PIEI.HHE. ML:0.8 0.000029484205 0.1408 AML other m 2021-10-06T18:22:53.24
IV.PIEI.HHN. ML:0.5 0.000016666175 0.0896 AML other m 2021-10-06T18:22:53.01
IV.NARO.HHE. ML:0.8 0.000023527395 0.0512 AML other m 2021-10-06T18:22:53.57
IV.NARO.HHN. ML:0.6 0.000020327694999999998 0.064 AML other m 2021-10-06T18:22:53.45
IV.ATCC.EHE. ML:0.7 0.00002444594 0.0768 AML other m 2021-10-06T18:22:53.61
IV.ATCC.EHN. ML:0.9 0.000032608715 0.1152 AML other m 2021-10-06T18:22:53.41
IV.MML1.EHE. ML:0.8 0.00002640803 0.1664 AML other m 2021-10-06T18:22:55.07
IV.MML1.EHN. ML:0.7 0.000019516546999999997 0.1536 AML other m 2021-10-06T18:22:54.98
IV.ASSB.HHE. ML:0.9 0.00002706774 0.3072 AML other m 2021-10-06T18:22:56.46
IV.ASSB.HHN. ML:0.8 0.000019690760000000002 0.128 AML other m 2021-10-06T18:22:57.40
IV.FDMO.HHE. ML:0.8 0.0000183043835 0.1792 AML other m 2021-10-06T18:22:58.46
IV.FDMO.HHN. ML:1.0 0.000025747330000000002 0.1408 AML other m 2021-10-06T18:22:58.66
IV.CSP1.EHE. ML:1.1 0.000033750989999999995 0.1792 AML other m 2021-10-06T18:22:58.46
IV.CSP1.EHN. ML:1.1 0.0000330283 0.1792 AML other m 2021-10-06T18:22:59.81
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