Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 10-10-2021 and time 00:58:19 (Italy) in region 3 km N Accumoli (RI)

A magnitude ML 2.2 earthquake occured in region: 3 km N Accumoli (RI), on

  • 09-10-2021 22:58:19 (UTC)
  • 10-10-2021 00:58:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7210, 13.2420 at 10 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 3 667 667
Arquata del Tronto AP 7 1178 1845
Amatrice RI 11 2657 4502
Cittareale RI 13 482 4984
Norcia PG 15 4957 9941
Acquasanta Terme AP 15 2916 12857
Montegallo AP 16 523 13380
Cascia PG 19 3217 16597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km W of Teramo (54892 inhabitants)
43 Km NW of L'Aquila (69753 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
52 Km E of Terni (111501 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
86 Km W of Chieti (51815 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
99 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 2021-10-09
22:58:19		 42.721 13.2415 10 2022-03-30
13:04:27		 Bollettino Sismico Italiano INGV 99440401
Reviewed
Rev100 		ML 2.2 2021-10-09
22:58:19		 42.7297 13.259 13 2021-10-09
23:03:29		 Sala Sismica INGV-Roma 96393061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-09 22:58:19 ± 0.06
Latitude 42.7210 ± 0.0036
Longitude 13.2415 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99440401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 375
Semi-minor axis of confidence ellipse (meter) 348
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
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) 40
Number of associated phases, regardless of their use for origin computation 64
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.80669
Number of stations at which the event was observed 37
Number of stations from which data was used for origin computation 34
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 66
Type of magnitude ML
Reference to an origin 96393061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-09 23:03:29

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 64
Type of magnitude ML
Reference to an origin 99440401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-07 15:40:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCRE.HHZ. 2021-10-09T22:59:18.44 3.0 undecidable manual Sn -2.28 0
IV.ICAI.EHZ. 2021-10-09T22:58:56.59 3.0 positive manual Pg 3.29 0
IV.ARVD.HHZ. 2021-10-09T22:58:47.37 0.6 undecidable manual S 344 89.5437 50 1.31 27
IV.LAV9.HHZ. 2021-10-09T22:58:40.75 3.0 negative manual P 0.39 0
IV.MOMA.HHZ. 2021-10-09T22:58:37.76 0.6 undecidable manual S 280 55.4001 50 0.8 37
IV.CESX.HHZ. 2021-10-09T22:58:37.22 0.6 undecidable manual S 257 54.8007 50 0.43 43
IV.MNTT.EHZ. 2021-10-09T22:58:36.67 0.6 undecidable manual S 37 47.5191 50 1.83 21
IV.MML1.EHZ. 2021-10-09T22:58:35.06 0.6 undecidable manual S 333 48.7179 50 -0.1 46
IV.FIAM.HHZ. 2021-10-09T22:58:35.93 0.6 undecidable manual S 191 51.3153 50 0.09 46
IV.OFFI.HHZ. 2021-10-09T22:58:35.50 0.6 undecidable manual S 57 43.2234 50 1.8 22
IV.MURB.HHZ. 2021-10-09T22:58:34.81 0.3 undecidable manual P 316 83.6496 50 0.9 51
IV.ARVD.HHZ. 2021-10-09T22:58:34.93 0.3 undecidable manual P 344 89.5437 50 0.1 64
IV.SAP2.EHZ. 2021-10-09T22:58:34.48 0.3 undecidable manual S 17 43.623 50 0.69 60
IV.CESI.HHZ. 2021-10-09T22:58:33.19 0.6 undecidable manual S 319 41.7249 50 -0.11 47
IV.GIGS.HHN. 2021-10-09T22:58:32.12 0.6 undecidable manual S 138 40.2264 50 -0.76 39
IV.GUMA.HHZ. 2021-10-09T22:58:32.97 0.3 undecidable manual S 11 38.628 50 0.5 65
IV.CSP1.EHZ. 2021-10-09T22:58:32.80 0.6 undecidable manual S 356 41.2254 50 -0.37 44
IV.CING.HHZ. 2021-10-09T22:58:32.17 0.3 undecidable manual P 357 72.6717 50 -0.06 67
IT.MTCL.HGE. 2021-10-09T22:58:31.35 0.6 undecidable manual S 327 36.1416 50 -0.44 44
IV.T0110.HHZ. 2021-10-09T22:58:31.70 0.3 undecidable manual P 141 69.8745 50 -0.09 67
IV.FDMO.HHZ. 2021-10-09T22:58:31.83 0.6 undecidable manual S 340 37.1295 50 -0.25 46
IV.EL6.EHZ. 2021-10-09T22:58:31.41 0.3 undecidable manual P 351 68.4759 50 -0.16 66
IV.MF5.EHZ. 2021-10-09T22:58:31.73 0.6 undecidable manual S 31 34.5432 50 0.36 45
IV.FEMA.HNE. 2021-10-09T22:58:30.09 0.6 undecidable manual S 330 30.9468 50 -0.32 46
IV.SNTG.HHZ. 2021-10-09T22:58:30.66 0.3 undecidable manual P 338 64.0914 50 -0.24 66
IV.VCEL.EHZ. 2021-10-09T22:58:30.57 0.3 undecidable manual P 126 60.8946 50 0.16 67
IV.MOMA.HHZ. 2021-10-09T22:58:29.57 0.3 undecidable manual P 280 55.4001 50 0 70
IV.CESX.HHZ. 2021-10-09T22:58:29.33 0.3 undecidable manual P 257 54.8007 50 -0.15 68
IV.TERO.HHZ. 2021-10-09T22:58:29.76 0.6 undecidable manual S 110 31.5462 50 -0.8 39
IV.GAVE.EHZ. 2021-10-09T22:58:29.81 0.3 undecidable manual S 264 28.4493 50 0.05 73
IV.MNTT.EHZ. 2021-10-09T22:58:28.83 0.1 undecidable manual P 37 47.5191 50 0.48 86
IV.RM33.EHZ. 2021-10-09T22:58:28.42 0.3 undecidable manual S 185 23.6541 113 0.03 74
IV.OFFI.HHZ. 2021-10-09T22:58:28.16 0.1 undecidable manual P 57 43.2234 50 0.47 86
IV.SAP2.EHZ. 2021-10-09T22:58:28.12 0.3 undecidable manual P 17 43.623 50 0.38 66
IV.CAMP.HHZ. 2021-10-09T22:58:28.28 0.6 undecidable manual S 146 24.6531 112 -0.45 45
IV.MML1.EHZ. 2021-10-09T22:58:28.30 0.1 undecidable manual P 333 48.7179 50 -0.24 90
IV.FIAM.HHZ. 2021-10-09T22:58:28.72 0.3 undecidable manual P 191 51.3153 50 -0.2 68
IV.CESI.HHZ. 2021-10-09T22:58:27.24 0.1 undecidable manual P 319 41.7249 50 -0.21 92
IV.MMO1.EHZ. 2021-10-09T22:58:27.07 0.3 undecidable manual S 19 20.9679 116 -0.48 67
IV.ARRO.EHZ. 2021-10-09T22:58:27.34 0.1 undecidable manual P 248 41.9247 50 -0.13 93
IV.MC2.EHZ. 2021-10-09T22:58:27.59 0.6 undecidable manual S 349 21.5673 115 -0.14 48
IV.LNSS.HHZ. 2021-10-09T22:58:27.91 0.6 undecidable manual S 231 20.9679 116 0.34 46
IV.CSP1.EHZ. 2021-10-09T22:58:27.00 0.1 undecidable manual P 356 41.2254 50 -0.38 89
IV.NRCA.HNZ. 2021-10-09T22:58:26.02 0.3 undecidable manual S 320 16.2726 122 -0.08 74
IV.MF5.EHZ. 2021-10-09T22:58:26.34 0.1 undecidable manual P 31 34.5432 50 0 97
IV.GIGS.HHN. 2021-10-09T22:58:26.61 0.3 undecidable manual P 138 40.2264 50 -0.61 62
IT.MTCL.HGE. 2021-10-09T22:58:26.25 0.1 undecidable manual P 327 36.1416 50 -0.34 90
IV.GUMA.HHZ. 2021-10-09T22:58:26.98 0.1 undecidable manual P 11 38.628 50 0 96
IV.FDMO.HHZ. 2021-10-09T22:58:26.32 0.1 undecidable manual P 340 37.1295 50 -0.43 88
IV.GAVE.EHZ. 2021-10-09T22:58:25.37 0.1 positive manual P 264 28.4493 50 -0.05 97
IV.T1299.HNZ. 2021-10-09T22:58:25.10 0.3 undecidable manual S 161 10.1787 135 0.65 64
IV.FEMA.HNE. 2021-10-09T22:58:25.50 0.3 undecidable manual P 330 30.9468 50 -0.29 69
IV.MTRA.HNZ. 2021-10-09T22:58:25.01 0.3 undecidable manual S 73 13.2756 127 -0.25 72
IV.SMA1.EHZ. 2021-10-09T22:58:25.26 0.3 undecidable manual S 143 12.5763 129 0.17 73
IV.TERO.HHZ. 2021-10-09T22:58:25.35 0.1 undecidable manual P 110 31.5462 50 -0.52 87
IV.LNSS.HHZ. 2021-10-09T22:58:24.32 0.1 positive manual P 231 20.9679 116 0.18 96
IV.RM33.EHZ. 2021-10-09T22:58:24.62 0.1 undecidable manual P 185 23.6541 113 -0.01 99
IV.CAMP.HHZ. 2021-10-09T22:58:24.59 0.1 positive manual P 146 24.6531 112 -0.22 94
IV.MC2.EHZ. 2021-10-09T22:58:24.17 0.1 negative manual P 349 21.5673 115 -0.07 98
IV.NRCA.HNZ. 2021-10-09T22:58:23.35 0.1 negative manual P 320 16.2726 122 0.05 99
IV.MMO1.EHZ. 2021-10-09T22:58:23.89 0.1 undecidable manual P 19 20.9679 116 -0.25 94
IV.SMA1.EHZ. 2021-10-09T22:58:22.96 0.1 positive manual P 143 12.5763 129 0.25 96
IV.T1299.HNZ. 2021-10-09T22:58:22.83 0.1 undecidable manual P 161 10.1787 135 0.48 91
IV.MTRA.HNZ. 2021-10-09T22:58:22.78 0.1 undecidable manual P 73 13.2756 127 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNN. ML:2.3 0.0023049999999999998 0.4 AML other m 2021-10-09T22:58:25.60
IV.MTRA.EHN. ML:2.4 0.0023499999999999997 0.4 AML other m 2021-10-09T22:58:25.60
IV.SMA1.EHE. ML:2.3 0.002285 0.26 AML other m 2021-10-09T22:58:25.46
IV.MTRA.HNE. ML:2.5 0.00367 1.02 AML other m 2021-10-09T22:58:25.10
IV.MTRA.EHE. ML:2.5 0.00369 1.02 AML other m 2021-10-09T22:58:25.10
IV.SMA1.EHN. ML:2.2 0.0015699999999999998 0.6 AML other m 2021-10-09T22:58:25.62
IV.NRCA.HHN. ML:2.7 0.004415 0.12 AML other m 2021-10-09T22:58:26.20
IV.NRCA.HHE. ML:2.8 0.005445 0.16 AML other m 2021-10-09T22:58:26.19
IV.NRCA.HNN. ML:2.7 0.004505 0.14 AML other m 2021-10-09T22:58:26.20
IV.NRCA.HNE. ML:2.7 0.00484 0.64 AML other m 2021-10-09T22:58:26.20
IV.LNSS.HHE. ML:2.4 0.001645 0.2 AML other m 2021-10-09T22:58:28.19
IV.LNSS.HNE. ML:2.4 0.0016400000000000002 0.2 AML other m 2021-10-09T22:58:28.19
IV.LNSS.HNN. ML:2.2 0.0012350000000000002 0.36 AML other m 2021-10-09T22:58:28.26
IV.LNSS.HHN. ML:2.3 0.0014199999999999998 0.36 AML other m 2021-10-09T22:58:28.26
IV.CAMP.HHE. ML:1.8 0.0003615 0.32 AML other m 2021-10-09T22:58:28.47
IV.RM33.EHN. ML:2.5 0.00209 0.24 AML other m 2021-10-09T22:58:28.72
IV.RM33.HNN. ML:2.5 0.0021849999999999994 0.24 AML other m 2021-10-09T22:58:28.72
IV.RM33.EHE. ML:2.4 0.0014449999999999999 0.14 AML other m 2021-10-09T22:58:28.81
IV.RM33.HNE. ML:2.4 0.001435 0.14 AML other m 2021-10-09T22:58:28.81
IV.CAMP.HHN. ML:1.6 0.0002385 0.2 AML other m 2021-10-09T22:58:29.34
IV.GAVE.HNE. ML:2.3 0.0010500000000000002 0.16 AML other m 2021-10-09T22:58:30.60
IV.GAVE.EHE. ML:2.3 0.001125 0.16 AML other m 2021-10-09T22:58:30.53
IV.GAVE.HNN. ML:1.7 0.000282 1.18 AML other m 2021-10-09T22:58:30.04
IV.GAVE.EHN. ML:2.2 0.000858 1.18 AML other m 2021-10-09T22:58:30.05
IV.TERO.HNN. ML:1.9 0.0003725 1 AML other m 2021-10-09T22:58:30.99
IV.TERO.HNE. ML:1.9 0.0003985 1.2 AML other m 2021-10-09T22:58:31.18
IV.TERO.HHE. ML:1.9 0.0003355 0.7 AML other m 2021-10-09T22:58:32.30
IV.MF5.EHE. ML:2.4 0.000957 0.5 AML other m 2021-10-09T22:58:32.63
IV.MF5.EHN. ML:2.2 0.000652 0.32 AML other m 2021-10-09T22:58:32.62
IV.FDMO.HHN. ML:1.7 0.0001995 0.42 AML other m 2021-10-09T22:58:32.54
IV.FDMO.HHE. ML:1.8 0.00023349999999999998 0.44 AML other m 2021-10-09T22:58:32.70
IV.GUMA.HNN. ML:2.8 0.0024050000000000005 0.32 AML other m 2021-10-09T22:58:33.27
IV.GUMA.HHN. ML:2.9 0.00286 0.34 AML other m 2021-10-09T22:58:33.13
IV.GUMA.HNE. ML:2.9 0.0026349999999999998 0.32 AML other m 2021-10-09T22:58:33.32
IV.GUMA.HHE. ML:2.9 0.0029249999999999996 0.28 AML other m 2021-10-09T22:58:33.20
IV.TERO.HHN. ML:1.9 0.0003465 0.22 AML other m 2021-10-09T22:58:33.37
IV.CSP1.EHE. ML:2.4 0.0009285000000000001 0.56 AML other m 2021-10-09T22:58:33.14
IV.CESI.HHN. ML:2.0 0.00036449999999999997 0.28 AML other m 2021-10-09T22:58:33.99
IV.CSP1.EHN. ML:2.4 0.0007844999999999999 0.56 AML other m 2021-10-09T22:58:34.50
IV.CESI.HHE. ML:1.7 0.00017999999999999998 0.62 AML other m 2021-10-09T22:58:34.00
IV.ARRO.EHE. ML:1.9 0.000242 0.94 AML other m 2021-10-09T22:58:34.08
IV.ARRO.EHN. ML:1.9 0.0002615 0.56 AML other m 2021-10-09T22:58:34.35
IV.SAP2.EHN. ML:2.8 0.002085 0.14 AML other m 2021-10-09T22:58:35.65
IV.MML1.EHE. ML:1.9 0.0002315 1.86 AML other m 2021-10-09T22:58:35.00
IV.OFFI.HHE. ML:2.5 0.0010854999999999999 0.44 AML other m 2021-10-09T22:58:36.03
IV.OFFI.HHN. ML:2.4 0.0008435000000000001 1.78 AML other m 2021-10-09T22:58:36.08
IV.MML1.EHN. ML:1.9 0.0001965 0.24 AML other m 2021-10-09T22:58:36.25
IV.FIAM.HHN. ML:1.6 0.0001021 0.58 AML other m 2021-10-09T22:58:36.53
IV.FIAM.HHE. ML:1.6 0.00010899999999999999 0.22 AML other m 2021-10-09T22:58:36.44
IV.MNTT.EHN. ML:2.5 0.0008125 1.12 AML other m 2021-10-09T22:58:37.76
IV.SAP2.EHE. ML:2.2 0.0005175 0.48 AML other m 2021-10-09T22:58:37.43
IV.MOMA.HHN. ML:1.9 0.00017099999999999998 1.22 AML other m 2021-10-09T22:58:38.00
IV.MNTT.EHE. ML:2.5 0.00084 0.46 AML other m 2021-10-09T22:58:38.73
IV.MOMA.HNE. ML:2.1 0.00030199999999999997 0.18 AML other m 2021-10-09T22:58:39.15
IV.MOMA.HHE. ML:2.2 0.000328 0.2 AML other m 2021-10-09T22:58:39.16
IV.CESX.HHE. ML:1.7 0.000122 1.5 AML other m 2021-10-09T22:58:39.09
IV.MOMA.HNN. ML:2.0 0.0002265 0.78 AML other m 2021-10-09T22:58:39.12
IV.CESX.HHN. ML:1.7 0.000123 0.18 AML other m 2021-10-09T22:58:39.81
IV.CING.HHE. ML:2.1 0.000199 1.56 AML other m 2021-10-09T22:58:42.98
IV.CING.HHN. ML:1.9 0.000136 0.58 AML other m 2021-10-09T22:58:43.59
IV.EL6.EHN. ML:2.2 0.0002835 0.42 AML other m 2021-10-09T22:58:43.87
IV.T0110.HHN. ML:1.9 0.000121 0.58 AML other m 2021-10-09T22:58:46.39
IV.T0110.HHE. ML:1.8 0.0001157 0.42 AML other m 2021-10-09T22:58:49.35
IV.EL6.EHE. ML:2.0 0.00017979999999999998 0.44 AML other m 2021-10-09T22:58:50.53
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