Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 07-07-2021 and time 12:31:35 (Italy) in region 7 km W Accumoli (RI)

A magnitude ML 2.2 earthquake occured in region: 7 km W Accumoli (RI), on

  • 07-07-2021 10:31:35 (UTC)
  • 07-07-2021 12:31:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7000, 13.1630 at 9 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
Accumoli RI 7 667 667
Cittareale RI 9 482 1149
Norcia PG 12 4957 6106
Cascia PG 12 3217 9323
Amatrice RI 13 2657 11980
Arquata del Tronto AP 14 1178 13158
Monteleone di Spoleto PG 18 599 13757
Poggiodomo PG 19 117 13874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NW of L'Aquila (69753 inhabitants)
45 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
47 Km SE of Foligno (57155 inhabitants)
78 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
86 Km NE of Guidonia Montecelio (88673 inhabitants)
87 Km NE of Tivoli (56533 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km W of Chieti (51815 inhabitants)
92 Km E of Viterbo (67173 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 2.2 2021-07-07
10:31:35		 42.7005 13.1627 9 2021-12-29
11:12:18		 Bollettino Sismico Italiano INGV 93740531
Reviewed
Rev100 		ML 2.3 2021-07-07
10:31:35		 42.7033 13.1567 9 2021-07-07
10:39:20		 Sala Sismica INGV-Roma 92352461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-07 10:31:35 ± 0.05
Latitude 42.7005 ± 0.0027
Longitude 13.1627 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 93740531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 350
Semi-minor axis of confidence ellipse (meter) 240
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 236
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 33
Number of associated phases, regardless of their use for origin computation 76
Number of defining phases 74
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.97307
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 45
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 74
Type of magnitude ML
Reference to an origin 92352461
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-07 10:39:20

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 61
Type of magnitude ML
Reference to an origin 93740531
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-08-06 08:50:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.COR1.EHZ. 2021-07-07T10:32:08.78 3.0 undecidable manual S 0.01 0
IV.ATLO.EHE. 2021-07-07T10:32:04.23 0.6 undecidable manual S 318 91.6416 50 0.86 34
IV.CING.HHZ. 2021-07-07T10:31:59.69 0.6 undecidable manual S 2 74.9694 50 0.79 37
IV.EL6.EHZ. 2021-07-07T10:31:58.48 0.6 undecidable manual S 356 69.9744 50 0.91 35
IV.ATCC.EHZ. 2021-07-07T10:31:57.76 0.6 undecidable manual S 322 68.4759 50 0.58 40
IV.VCEL.EHZ. 2021-07-07T10:31:57.02 0.6 undecidable manual S 121 64.9905 50 0.77 37
IV.PIEI.HHZ. 2021-07-07T10:31:54.21 0.6 undecidable manual P 331 105.7164 50 0.3 40
IV.MPAG.EHZ. 2021-07-07T10:31:54.85 0.6 undecidable manual P 343 108.0141 50 0.57 37
IV.ATMI.HHZ. 2021-07-07T10:31:54.85 3.0 undecidable manual P 101.0211 1.65 0
IV.ASSB.HHZ. 2021-07-07T10:31:53.91 0.6 undecidable manual S 313 55.7997 50 0.1 46
IV.AOI.HHE. 2021-07-07T10:31:53.56 0.6 undecidable manual P 21 100.7214 50 0.4 40
IV.MOMA.HHZ. 2021-07-07T10:31:52.26 0.3 undecidable manual S 284 49.617 50 0.12 70
IV.SAP2.EHZ. 2021-07-07T10:31:52.48 0.6 undecidable manual S 24 47.9187 50 0.78 39
IT.GNU.HGE. 2021-07-07T10:31:52.45 0.6 undecidable manual S 284 49.617 50 0.31 45
IV.ATVA.EHE. 2021-07-07T10:31:52.84 0.6 undecidable manual P 312 95.8263 50 0.44 40
IV.MML1.EHZ. 2021-07-07T10:31:51.51 0.6 undecidable manual S 341 48.4182 50 -0.3 45
IV.ARVD.HHE. 2021-07-07T10:31:51.86 0.6 undecidable manual P 349 90.243 50 0.32 41
IV.ATFO.HHN. 2021-07-07T10:31:51.69 0.6 undecidable manual P 327 88.0452 50 0.49 40
IV.CESX.HHZ. 2021-07-07T10:31:51.88 0.6 undecidable manual S 258 48.1185 50 0.14 47
IV.ATLO.EHE. 2021-07-07T10:31:51.88 0.6 undecidable manual P 318 91.6416 50 0.12 43
IV.FIAM.HHZ. 2021-07-07T10:31:51.24 0.6 undecidable manual S 184 48.1185 50 -0.51 43
IV.MGAB.HHZ. 2021-07-07T10:31:51.75 0.6 undecidable manual P 286 88.6446 50 0.45 40
IV.CSP1.EHZ. 2021-07-07T10:31:50.11 0.3 undecidable manual S 5 43.5231 50 -0.41 66
IV.MF5.EHZ. 2021-07-07T10:31:50.08 0.6 undecidable manual S 37 40.0266 50 0.5 44
IV.GUMA.HHZ. 2021-07-07T10:31:50.72 0.3 undecidable manual S 19 42.5241 50 0.46 66
IV.CERT.HNE. 2021-07-07T10:31:50.58 0.6 undecidable manual P 190 84.6486 50 -0.1 44
IV.MURB.HHZ. 2021-07-07T10:31:50.95 0.6 undecidable manual P 321 81.0522 50 0.82 36
IV.CESI.HHZ. 2021-07-07T10:31:49.08 0.6 undecidable manual S 328 39.7269 50 -0.43 44
IV.T0110.HHZ. 2021-07-07T10:31:48.57 0.6 undecidable manual P 136 72.4719 50 -0.23 44
IV.EL6.EHZ. 2021-07-07T10:31:48.08 0.3 undecidable manual P 356 69.9744 50 -0.33 64
IV.ATCC.EHZ. 2021-07-07T10:31:48.12 0.6 undecidable manual P 322 68.4759 50 -0.06 46
IV.ARRO.EHZ. 2021-07-07T10:31:48.29 0.6 undecidable manual S 248 35.0427 50 0.03 49
IV.CING.HHZ. 2021-07-07T10:31:48.91 0.6 undecidable manual P 2 74.9694 50 -0.27 43
IV.FDMO.HHZ. 2021-07-07T10:31:48.40 0.6 undecidable manual S 351 37.7289 50 -0.58 43
IV.FAGN.HHZ. 2021-07-07T10:31:47.19 0.6 undecidable manual P 144 59.2962 50 0.43 43
IV.VCEL.EHZ. 2021-07-07T10:31:47.65 0.6 undecidable manual P 121 64.9905 50 0 46
IV.TERO.HHZ. 2021-07-07T10:31:47.82 0.6 undecidable manual S 103 37.0296 50 -0.96 36
IV.FEMA.HNE. 2021-07-07T10:31:46.46 0.6 undecidable manual S 342 30.4473 106 -0.41 45
IV.ASSB.HHZ. 2021-07-07T10:31:46.14 0.3 undecidable manual P 313 55.7997 50 -0.09 70
IV.MNTT.EHZ. 2021-07-07T10:31:46.41 0.3 undecidable manual P 41 53.3022 50 0.56 63
IV.MMO1.EHZ. 2021-07-07T10:31:45.02 0.6 undecidable manual S 31 25.752 108 -0.31 47
IV.OFFI.HHZ. 2021-07-07T10:31:45.81 0.1 positive manual P 58 49.9167 50 0.49 86
IV.CAMP.HHZ. 2021-07-07T10:31:45.36 0.6 undecidable manual S 132 27.1506 108 -0.43 45
IV.SAP2.EHZ. 2021-07-07T10:31:45.07 0.6 undecidable manual P 24 47.9187 50 0.05 47
IT.GNU.HGE. 2021-07-07T10:31:45.33 0.3 undecidable manual P 284 49.617 50 0.05 71
IV.FIAM.HHZ. 2021-07-07T10:31:44.61 0.3 undecidable manual P 184 48.1185 50 -0.44 66
IV.PF6.EHN. 2021-07-07T10:31:44.67 0.3 undecidable manual P 3 48.618 50 -0.44 65
IV.MML1.EHZ. 2021-07-07T10:31:44.63 0.6 undecidable manual P 341 48.4182 50 -0.46 44
IV.RM33.EHZ. 2021-07-07T10:31:44.01 0.6 undecidable manual S 169 21.6672 112 0.03 50
IV.GUMA.HHZ. 2021-07-07T10:31:44.09 0.1 positive manual P 19 42.5241 50 -0.1 95
IV.MOMA.HHZ. 2021-07-07T10:31:44.97 0.3 undecidable manual P 284 49.617 50 -0.31 67
IV.CESX.HHZ. 2021-07-07T10:31:44.54 0.6 undecidable manual P 258 48.1185 50 -0.5 43
IV.FDMO.HHZ. 2021-07-07T10:31:43.00 0.3 undecidable manual P 351 37.7289 50 -0.45 67
IV.MTRA.HNZ. 2021-07-07T10:31:43.11 0.3 undecidable manual S 72 20.0688 113 -0.36 70
IV.CSP1.EHZ. 2021-07-07T10:31:43.92 0.1 positive manual P 5 43.5231 50 -0.42 89
IV.CESI.HHZ. 2021-07-07T10:31:43.35 0.3 undecidable manual P 328 39.7269 50 -0.41 67
IV.GIGS.HHN. 2021-07-07T10:31:43.68 0.6 undecidable manual P 129 43.3233 50 -0.62 41
IV.MF5.EHZ. 2021-07-07T10:31:43.66 0.3 undecidable manual P 37 40.0266 50 -0.13 71
IV.GAVE.HNZ. 2021-07-07T10:31:43.89 0.6 undecidable manual S 268 21.867 111 -0.17 48
IV.ARRO.EHZ. 2021-07-07T10:31:42.62 0.1 positive manual P 248 35.0427 50 -0.41 90
IV.SMA1.EHZ. 2021-07-07T10:31:42.61 0.3 undecidable manual S 119 16.0728 118 0.38 70
IV.TERO.HHZ. 2021-07-07T10:31:42.78 0.6 undecidable manual P 103 37.0296 50 -0.55 43
IT.MTCL.HGZ. 2021-07-07T10:31:42.65 0.6 undecidable manual P 338 35.1426 50 -0.4 45
IV.LNSS.HNZ. 2021-07-07T10:31:42.01 0.3 undecidable manual S 223 14.7741 120 0.2 73
IV.FEMA.HNE. 2021-07-07T10:31:41.81 0.3 undecidable manual P 342 30.4473 106 -0.42 68
IV.T1299.HNN. 2021-07-07T10:31:41.64 0.6 undecidable manual S 127 12.1767 125 0.56 45
IV.MMO1.EHZ. 2021-07-07T10:31:41.16 0.1 positive manual P 31 25.752 108 -0.18 96
IV.NRCA.HNZ. 2021-07-07T10:31:41.95 0.3 undecidable manual S 345 15.2736 119 -0.03 76
IV.CAMP.HHZ. 2021-07-07T10:31:41.38 0.3 undecidable manual P 132 27.1506 108 -0.23 71
IV.RM33.EHZ. 2021-07-07T10:31:40.59 0.1 positive manual P 169 21.6672 112 0.02 100
IV.GAVE.HNZ. 2021-07-07T10:31:40.63 0.1 positive manual P 268 21.867 111 0.02 100
IV.MTRA.HNZ. 2021-07-07T10:31:40.23 0.3 undecidable manual P 72 20.0688 113 -0.04 75
IV.NRCA.HNZ. 2021-07-07T10:31:39.58 0.3 undecidable manual P 345 15.2736 119 0.17 74
IV.LNSS.HNZ. 2021-07-07T10:31:39.70 0.1 positive manual P 223 14.7741 120 0.39 94
IV.SMA1.EHZ. 2021-07-07T10:31:39.77 0.3 undecidable manual P 119 16.0728 118 0.22 73
IV.T1299.HNN. 2021-07-07T10:31:39.36 0.3 undecidable manual P 127 12.1767 125 0.47 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.8 0.0058109254999999995 0.16 AML other m 2021-07-07T10:31:42.12
IV.NRCA.HHE. ML:2.8 0.0059753835 0.1408 AML other m 2021-07-07T10:31:42.28
IV.NRCA.HNN. ML:2.6 0.0042450000000000005 0.16 AML other m 2021-07-07T10:31:42.04
IV.NRCA.HHN. ML:2.7 0.005115000000000001 0.16 AML other m 2021-07-07T10:31:42.04
IV.LNSS.HHE. ML:2.8 0.0071717065 0.3008 AML other m 2021-07-07T10:31:42.60
IV.LNSS.HNE. ML:2.8 0.00663 0.3 AML other m 2021-07-07T10:31:42.46
IV.LNSS.HNN. ML:2.7 0.00474 0.2 AML other m 2021-07-07T10:31:42.66
IV.LNSS.HHN. ML:2.7 0.005634999999999999 0.2 AML other m 2021-07-07T10:31:42.66
IV.MTRA.HNN. ML:2.5 0.0023441805 0.1792 AML other m 2021-07-07T10:31:44.08
IV.MTRA.EHN. ML:2.5 0.0023988215 0.1792 AML other m 2021-07-07T10:31:44.07
IV.MTRA.EHE. ML:2.7 0.003455 1.64 AML other m 2021-07-07T10:31:43.17
IV.MTRA.HNE. ML:2.6 0.0034449999999999997 1.64 AML other m 2021-07-07T10:31:43.17
IV.GAVE.HNN. ML:2.1 0.0009345 0.28 AML other m 2021-07-07T10:31:44.60
IV.GAVE.EHN. ML:2.6 0.003005 0.28 AML other m 2021-07-07T10:31:44.60
IV.RM33.HNN. ML:2.1 0.00090894215 0.2176 AML other m 2021-07-07T10:31:44.78
IV.RM33.EHN. ML:2.1 0.0009053024999999999 0.2368 AML other m 2021-07-07T10:31:44.79
IV.RM33.HNE. ML:2.0 0.0007654128499999999 0.2752 AML other m 2021-07-07T10:31:44.82
IV.GAVE.HNE. ML:2.6 0.0031450000000000002 0.2 AML other m 2021-07-07T10:31:45.60
IV.GAVE.EHE. ML:2.7 0.0031488525000000003 0.224 AML other m 2021-07-07T10:31:45.61
IV.FDMO.HHN. ML:2.0 0.00037867125 0.1792 AML other m 2021-07-07T10:31:49.08
IV.TERO.HHE. ML:2.1 0.000569 0.52 AML other m 2021-07-07T10:31:48.88
IV.RM33.EHE. ML:2.0 0.0007426525 0.2624 AML other m 2021-07-07T10:31:44.83
IV.CESI.HHN. ML:2.3 0.0006805000000000001 0.36 AML other m 2021-07-07T10:31:49.33
IV.ARRO.EHN. ML:2.1 0.00048469569999999996 0.1408 AML other m 2021-07-07T10:31:49.52
IV.FDMO.HHE. ML:1.9 0.00029900000000000006 0.28 AML other m 2021-07-07T10:31:50.61
IV.ARRO.EHE. ML:2.0 0.0004235 1.06 AML other m 2021-07-07T10:31:50.72
IV.CSP1.EHN. ML:2.6 0.0011663436999999998 0.3008 AML other m 2021-07-07T10:31:50.91
IV.CSP1.EHE. ML:2.7 0.001579721 0.2816 AML other m 2021-07-07T10:31:51.42
IV.MF5.EHE. ML:2.1 0.0004447516 0.2368 AML other m 2021-07-07T10:31:51.59
IV.CESI.HHE. ML:1.9 0.000306 0.26 AML other m 2021-07-07T10:31:52.13
IV.MML1.EHN. ML:2.0 0.0002525 0.18 AML other m 2021-07-07T10:31:52.34
IV.FIAM.HHE. ML:1.8 0.00018232674999999997 0.2176 AML other m 2021-07-07T10:31:52.46
IV.FIAM.HHN. ML:1.8 0.00017124445 0.2176 AML other m 2021-07-07T10:31:52.56
IV.MOMA.HHN. ML:2.4 0.0007090000000000001 0.22 AML other m 2021-07-07T10:31:53.15
IV.MOMA.HNN. ML:2.4 0.000627 0.22 AML other m 2021-07-07T10:31:53.05
IV.SAP2.EHN. ML:3.1 0.0034928425 0.1216 AML other m 2021-07-07T10:31:53.40
IV.SAP2.EHE. ML:2.3 0.0006163255000000001 0.1216 AML other m 2021-07-07T10:31:52.79
IV.CESX.HHE. ML:2.0 0.00030151859999999996 0.3648 AML other m 2021-07-07T10:31:53.56
IV.MOMA.HHE. ML:2.4 0.00060176975 0.16 AML other m 2021-07-07T10:31:53.76
IV.MOMA.HNE. ML:2.3 0.0005609196 0.1664 AML other m 2021-07-07T10:31:53.77
IV.MML1.HNE. ML:1.8 0.00019589995 0.2304 AML other m 2021-07-07T10:31:54.10
IV.OFFI.HHN. ML:2.3 0.000579 0.44 AML other m 2021-07-07T10:31:54.58
IV.MML1.HNN. ML:1.9 0.0002321557 0.16 AML other m 2021-07-07T10:31:52.25
IV.MML1.EHE. ML:1.9 0.00021325005 0.2368 AML other m 2021-07-07T10:31:54.46
IV.ASSB.HHN. ML:2.0 0.00022186295 0.16 AML other m 2021-07-07T10:31:55.18
IV.CESX.HHN. ML:2.1 0.00036199999999999996 0.2 AML other m 2021-07-07T10:31:55.34
IV.ASSB.HHE. ML:2.2 0.0003771025 0.224 AML other m 2021-07-07T10:31:56.70
IV.VCEL.EHE. ML:2.1 0.00023810215000000002 0.3008 AML other m 2021-07-07T10:31:58.95
IV.OFFI.HHE. ML:2.3 0.000588 0.52 AML other m 2021-07-07T10:31:58.33
IV.VCEL.EHN. ML:2.0 0.00018873475 0.2944 AML other m 2021-07-07T10:31:58.77
IV.ATCC.EHE. ML:2.0 0.000185 0.24 AML other m 2021-07-07T10:31:58.78
IV.ATCC.EHN. ML:2.1 0.00023899999999999998 0.18 AML other m 2021-07-07T10:31:59.78
IV.EL6.EHE. ML:2.2 0.00029088674999999995 0.3392 AML other m 2021-07-07T10:32:00.65
IV.EL6.EHN. ML:2.3 0.00035499999999999996 0.36 AML other m 2021-07-07T10:32:00.80
IV.CING.HHN. ML:1.9 0.0001131504 0.096 AML other m 2021-07-07T10:32:01.79
IV.T0110.HHN. ML:2.0 0.0001715 1.74 AML other m 2021-07-07T10:32:02.98
IV.PIEI.HHE. ML:1.8 0.0000673 0.36 AML other m 2021-07-07T10:32:17.75
IV.TERO.HNE. ML:2.2 0.0005777774 0.2688 AML other m 2021-07-07T10:31:49.96
IV.TERO.HNN. ML:2.1 0.00048369969999999995 0.2752 AML other m 2021-07-07T10:31:49.47
IV.CESI.HNN. ML:2.2 0.00061161405 0.2496 AML other m 2021-07-07T10:31:49.33
IV.CESI.HNE. ML:1.9 0.00027726240000000004 0.1792 AML other m 2021-07-07T10:31:49.17
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
Waveforms Seismic signals in miniseed + resp format Download