Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 20-06-2021 and time 00:56:00 (Italy) in region 5 km NW Accumoli (RI)

A magnitude ML 1.8 earthquake occured in region: 5 km NW Accumoli (RI), on

  • 19-06-2021 22:56:00 (UTC)
  • 20-06-2021 00:56:00 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7340, 13.2190 at 11 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 5 667 667
Arquata del Tronto AP 8 1178 1845
Norcia PG 12 4957 6802
Amatrice RI 13 2657 9459
Cittareale RI 14 482 9941
Montegallo AP 15 523 10464
Acquasanta Terme AP 16 2916 13380
Cascia PG 17 3217 16597
Castelsantangelo sul Nera MC 19 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
45 Km NW of L'Aquila (69753 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
51 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
89 Km W of Chieti (51815 inhabitants)
91 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
98 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 1.8 2021-06-19
22:56:00		 42.7345 13.2187 11 2021-12-29
11:12:08		 Bollettino Sismico Italiano INGV 92103161
Reviewed
Rev100 		ML 1.8 2021-06-19
22:56:00		 42.7305 13.2192 10 2021-06-19
23:01:05		 Sala Sismica INGV-Roma 91577591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-19 22:56:00 ± 0.03
Latitude 42.7345 ± 0.0018
Longitude 13.2187 ± 0.0024
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92103161

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 100
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
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 70
Number of defining phases 70
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.11062
Epicentral distance of station farthest from the epicenter (degree) 0.99195
Number of stations at which the event was observed 42
Number of stations from which data was used for origin computation 42
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 91577591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-19 23:01:05

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 92103161
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-25 15:43:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2021-06-19T22:56:22.40 0.3 undecidable manual S 141 72.2721 50 0.16 66
IV.FOSV.EHZ. 2021-06-19T22:56:22.41 0.3 undecidable manual S 329 72.372 50 0.13 66
IV.ATCC.EHZ. 2021-06-19T22:56:21.65 0.3 undecidable manual S 317 68.5758 50 0.38 63
IV.EL6.EHZ. 2021-06-19T22:56:21.10 0.3 undecidable manual S 352 66.6777 50 0.35 64
IV.VCEL.EHZ. 2021-06-19T22:56:20.06 0.3 undecidable manual S 126 63.2922 50 0.22 66
IV.NARO.HHZ. 2021-06-19T22:56:18.89 0.3 undecidable manual P 332 110.112 50 0.06 62
IV.FIAM.HHZ. 2021-06-19T22:56:17.04 0.3 undecidable manual S 189 52.4031 50 0.1 69
IV.CESX.HHZ. 2021-06-19T22:56:17.10 0.3 undecidable manual S 255 53.4021 50 -0.11 69
IV.ATFO.HHZ. 2021-06-19T22:56:15.55 0.6 undecidable manual P 323 87.5457 50 0.18 42
IV.MML1.HNE. 2021-06-19T22:56:15.35 0.3 undecidable manual S 335 46.62 50 -0.04 71
IV.ARVD.HHZ. 2021-06-19T22:56:15.46 0.3 undecidable manual P 345 87.6456 50 0.09 65
IV.MURB.HHZ. 2021-06-19T22:56:14.61 0.3 undecidable manual P 316 81.252 50 0.21 64
IV.ARRO.EHZ. 2021-06-19T22:56:14.00 0.3 undecidable manual S 245 40.7259 50 0.16 69
IV.PP3.EHZ. 2021-06-19T22:56:14.00 0.3 undecidable manual P 24 78.0663 50 0.1 66
IV.SAP2.EHZ. 2021-06-19T22:56:14.77 0.3 undecidable manual S 20 42.7239 50 0.41 66
IV.SRES.HHN. 2021-06-19T22:56:14.25 0.6 undecidable manual P 227 80.0643 50 0.04 44
IV.CESI.HHZ. 2021-06-19T22:56:13.40 0.3 undecidable manual S 320 39.4272 50 -0.07 71
IV.GIGS.HHN. 2021-06-19T22:56:13.89 0.3 undecidable manual S 137 42.5241 50 -0.42 66
IV.GUMA.HHZ. 2021-06-19T22:56:13.16 0.6 undecidable manual S 15 37.629 50 0.16 47
IV.CSP1.EHZ. 2021-06-19T22:56:13.42 0.3 undecidable manual S 358 39.627 50 -0.12 70
IV.FOSV.EHZ. 2021-06-19T22:56:13.06 0.3 undecidable manual P 329 72.372 50 0.04 67
IV.EL6.EHZ. 2021-06-19T22:56:12.18 0.1 undecidable manual P 352 66.6777 50 0.04 91
IV.ATCC.EHZ. 2021-06-19T22:56:12.26 0.3 undecidable manual P 317 68.5758 50 -0.19 66
IV.T0110.HHZ. 2021-06-19T22:56:12.76 0.1 undecidable manual P 141 72.2721 50 -0.25 86
IV.FDMO.HHZ. 2021-06-19T22:56:12.17 0.3 undecidable manual S 342 35.1426 50 -0.17 70
IV.FAGN.HHZ. 2021-06-19T22:56:11.23 0.6 undecidable manual P 150 59.9955 50 0.11 45
IT.MTCL.HGZ. 2021-06-19T22:56:11.66 0.3 undecidable manual S 328 33.8439 50 -0.33 68
IV.TERO.HHZ. 2021-06-19T22:56:11.92 0.3 undecidable manual S 111 33.744 50 -0.05 72
IV.VCEL.EHZ. 2021-06-19T22:56:11.75 0.3 undecidable manual P 126 63.2922 50 0.13 67
IV.MOMA.HNZ. 2021-06-19T22:56:10.43 0.6 undecidable manual P 279 53.4021 50 0.33 44
IV.GAVE.EHZ. 2021-06-19T22:56:10.16 0.3 undecidable manual S 260 26.8509 50 0.03 73
IV.CESX.HHZ. 2021-06-19T22:56:10.22 0.3 undecidable manual P 255 53.4021 50 0.12 69
IV.FEMA.HNZ. 2021-06-19T22:56:10.55 0.1 undecidable manual S 332 28.749 50 -0.08 96
IV.ASSB.HHZ. 2021-06-19T22:56:10.35 0.3 undecidable manual P 307 56.8986 50 -0.29 66
IV.MNTP.HNZ. 2021-06-19T22:56:09.83 0.6 undecidable manual P 24 49.1175 50 0.39 43
IV.CAMP.HHZ. 2021-06-19T22:56:09.89 0.3 undecidable manual S 145 26.9508 50 -0.26 70
IV.FIAM.HHZ. 2021-06-19T22:56:09.72 0.3 undecidable manual P 189 52.4031 50 -0.23 67
IV.MNTT.EHZ. 2021-06-19T22:56:09.93 0.1 undecidable manual P 40 47.5191 50 0.74 78
IV.RM33.EHZ. 2021-06-19T22:56:09.60 0.3 undecidable manual S 181 25.0527 50 -0.03 73
IV.MMO1.HNZ. 2021-06-19T22:56:08.00 0.3 undecidable manual S 26 20.2686 118 -0.34 69
IV.SAP2.EHZ. 2021-06-19T22:56:08.65 0.3 undecidable manual P 20 42.7239 50 0.19 69
MN.AQU.HNN. 2021-06-19T22:56:08.53 0.3 undecidable manual P 160 44.9217 50 -0.25 68
IV.MC2.EHZ. 2021-06-19T22:56:08.09 0.3 undecidable manual S 353 19.7691 118 -0.08 73
IV.MML1.HNE. 2021-06-19T22:56:08.85 0.1 undecidable manual P 335 46.62 50 -0.2 91
IV.GIGS.HHN. 2021-06-19T22:56:08.03 0.3 undecidable manual P 137 42.5241 50 -0.4 66
IV.LNSS.HHZ. 2021-06-19T22:56:08.38 0.3 undecidable manual S 225 20.6682 117 -0.05 74
IV.PF6.EHN. 2021-06-19T22:56:08.67 0.3 undecidable manual P 357 44.8218 50 -0.1 70
IV.ARRO.EHZ. 2021-06-19T22:56:08.03 0.3 undecidable manual P 245 40.7259 50 -0.12 70
IV.CSP1.EHZ. 2021-06-19T22:56:07.79 0.3 undecidable manual P 358 39.627 50 -0.19 69
IV.FDMO.HHZ. 2021-06-19T22:56:07.04 0.3 undecidable manual P 342 35.1426 50 -0.25 69
IV.CESI.HHZ. 2021-06-19T22:56:07.87 0.1 negative manual P 320 39.4272 50 -0.07 95
IV.MF5.EHZ. 2021-06-19T22:56:07.38 0.3 positive manual P 35 34.2435 50 0.23 69
IV.GUMA.HHZ. 2021-06-19T22:56:07.89 0.1 positive manual P 15 37.629 50 0.22 92
IV.FEMA.HNZ. 2021-06-19T22:56:06.20 0.1 undecidable manual P 332 28.749 50 -0.1 96
IV.TERO.HHZ. 2021-06-19T22:56:06.80 0.3 negative manual P 111 33.744 50 -0.28 69
IV.SMA1.EHZ. 2021-06-19T22:56:06.74 0.3 undecidable manual S 140 14.9739 125 -0.01 75
IV.T1299.EHZ. 2021-06-19T22:56:06.37 0.1 undecidable manual S 155 12.2766 131 0.35 94
IV.NRCA.HNZ. 2021-06-19T22:56:06.20 0.3 undecidable manual S 322 13.875 127 -0.25 71
IT.MTCL.HGZ. 2021-06-19T22:56:06.83 0.3 undecidable manual P 328 33.8439 50 -0.26 69
IV.GAVE.EHZ. 2021-06-19T22:56:06.05 0.1 positive manual P 260 26.8509 50 0.04 97
IV.MTRA.HNZ. 2021-06-19T22:56:06.34 0.3 undecidable manual S 80 14.6742 126 -0.34 70
IV.LNSS.HHZ. 2021-06-19T22:56:05.15 0.1 positive manual P 225 20.6682 117 0.11 97
IV.RM33.EHZ. 2021-06-19T22:56:05.74 0.1 undecidable manual P 181 25.0527 50 0.02 98
IV.CAMP.HHZ. 2021-06-19T22:56:05.84 0.1 undecidable manual P 145 26.9508 50 -0.18 95
IV.MTRA.HNZ. 2021-06-19T22:56:04.03 0.1 undecidable manual P 80 14.6742 126 0.01 100
IV.MMO1.HNZ. 2021-06-19T22:56:04.82 0.1 undecidable manual P 26 20.2686 118 -0.16 96
IV.SMA1.EHZ. 2021-06-19T22:56:04.20 0.1 undecidable manual P 140 14.9739 125 0.14 97
IV.T1299.EHZ. 2021-06-19T22:56:04.01 0.1 undecidable manual P 155 12.2766 131 0.37 93
IV.MC2.EHZ. 2021-06-19T22:56:04.88 0.3 undecidable manual P 353 19.7691 118 0 74
IV.NRCA.HNZ. 2021-06-19T22:56:03.98 0.1 negative manual P 322 13.875 127 0.09 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.5 0.00344 0.18 AML other m 2021-06-19T22:56:06.39
IV.NRCA.HHE. ML:2.6 0.0038 0.18 AML other m 2021-06-19T22:56:06.39
IV.NRCA.HNN. ML:2.4 0.0022949999999999997 0.12 AML other m 2021-06-19T22:56:06.43
IV.NRCA.HHN. ML:2.4 0.00244 0.18 AML other m 2021-06-19T22:56:06.43
IV.MTRA.HNE. ML:2.4 0.002165 0.12 AML other m 2021-06-19T22:56:06.88
IV.MTRA.EHE. ML:2.4 0.00219 0.14 AML other m 2021-06-19T22:56:06.88
IV.MTRA.HNN. ML:2.3 0.0020350000000000004 1.76 AML other m 2021-06-19T22:56:07.94
IV.MTRA.EHN. ML:2.3 0.00203 1.78 AML other m 2021-06-19T22:56:07.95
IV.TERO.HHE. ML:1.7 0.00019350000000000001 0.06 AML other m 2021-06-19T22:56:07.05
IV.SMA1.EHE. ML:1.9 0.0008375 0.52 AML other m 2021-06-19T22:56:07.61
IV.SMA1.EHN. ML:1.9 0.0007210000000000001 0.96 AML other m 2021-06-19T22:56:08.03
IV.LNSS.HHE. ML:1.8 0.0005214999999999999 0.14 AML other m 2021-06-19T22:56:09.13
IV.CAMP.HHN. ML:1.4 0.0001505 0.2 AML other m 2021-06-19T22:56:10.00
IV.CAMP.HHE. ML:1.8 0.0003095 0.22 AML other m 2021-06-19T22:56:10.06
IV.LNSS.HHN. ML:1.7 0.00038250000000000003 0.24 AML other m 2021-06-19T22:56:10.22
IV.RM33.EHE. ML:1.9 0.00048150000000000005 0.16 AML other m 2021-06-19T22:56:10.36
IV.RM33.HNE. ML:1.9 0.0004965 0.18 AML other m 2021-06-19T22:56:10.27
IV.RM33.HNN. ML:1.8 0.000363 0.84 AML other m 2021-06-19T22:56:10.43
IV.RM33.EHN. ML:1.7 0.0003055 0.46 AML other m 2021-06-19T22:56:10.43
IV.GAVE.EHN. ML:2.2 0.0009379999999999999 0.2 AML other m 2021-06-19T22:56:10.78
IV.GUMA.HNN. ML:2.8 0.0023095000000000004 1.4 AML other m 2021-06-19T22:56:10.19
IV.GAVE.HNN. ML:1.8 0.0003755 1.3 AML other m 2021-06-19T22:56:11.22
IV.GAVE.HNE. ML:2.1 0.000658 0.64 AML other m 2021-06-19T22:56:11.63
IV.GAVE.EHE. ML:2.1 0.0006599999999999999 0.64 AML other m 2021-06-19T22:56:11.32
IV.TERO.HHN. ML:1.8 0.000259 1.9 AML other m 2021-06-19T22:56:11.97
IV.FDMO.HHE. ML:1.6 0.000158 0.42 AML other m 2021-06-19T22:56:12.40
IV.FDMO.HHN. ML:1.9 0.000301 0.3 AML other m 2021-06-19T22:56:12.42
IV.CSP1.EHN. ML:2.2 0.0006314999999999999 1.64 AML other m 2021-06-19T22:56:13.91
IV.GUMA.HHE. ML:2.4 0.001038 1.7 AML other m 2021-06-19T22:56:13.92
IV.GUMA.HNE. ML:2.2 0.0006205000000000001 1.68 AML other m 2021-06-19T22:56:13.93
IV.CESI.HHN. ML:1.9 0.00027350000000000003 1.62 AML other m 2021-06-19T22:56:13.18
IV.GUMA.HHN. ML:2.1 0.0005235 0.36 AML other m 2021-06-19T22:56:14.38
IV.CESI.HHE. ML:1.6 0.000131 0.36 AML other m 2021-06-19T22:56:14.77
IV.CSP1.EHE. ML:2.2 0.0005175000000000001 0.76 AML other m 2021-06-19T22:56:15.50
IV.SAP2.EHN. ML:2.4 0.0008565000000000001 0.72 AML other m 2021-06-19T22:56:15.91
IV.SAP2.EHE. ML:1.6 0.00014150000000000002 0.1 AML other m 2021-06-19T22:56:15.99
IV.ARRO.EHN. ML:1.4 0.0000913 0.18 AML other m 2021-06-19T22:56:16.20
IV.ARRO.EHE. ML:1.4 0.0000799 0.22 AML other m 2021-06-19T22:56:16.92
IV.FIAM.HHE. ML:1.2 0.000039699999999999996 0.88 AML other m 2021-06-19T22:56:17.42
IV.FIAM.HHN. ML:1.4 0.0000525 0.54 AML other m 2021-06-19T22:56:17.64
IV.CESX.HHE. ML:1.2 0.00003985 0.42 AML other m 2021-06-19T22:56:19.54
IV.MNTT.EHN. ML:1.9 0.00021250000000000002 0.42 AML other m 2021-06-19T22:56:19.66
IV.CESX.HHN. ML:1.3 0.0000443 0.4 AML other m 2021-06-19T22:56:19.54
IV.ASSB.HHN. ML:1.4 0.00004845 0.98 AML other m 2021-06-19T22:56:19.31
IV.ASSB.HHE. ML:1.3 0.00004365 0.66 AML other m 2021-06-19T22:56:21.71
IV.MNTT.EHE. ML:2.3 0.0006265000000000001 0.2 AML other m 2021-06-19T22:56:21.89
IV.ATCC.EHN. ML:1.4 0.00004215 0.92 AML other m 2021-06-19T22:56:23.59
IV.FAGN.HHN. ML:1.8 0.000113 0.48 AML other m 2021-06-19T22:56:23.05
IV.FOSV.EHE. ML:1.3 0.00002835 0.8 AML other m 2021-06-19T22:56:23.35
IV.EL6.EHN. ML:1.8 0.00011149999999999999 0.82 AML other m 2021-06-19T22:56:23.43
IV.FOSV.EHN. ML:1.4 0.000046 0.32 AML other m 2021-06-19T22:56:23.98
IV.EL6.EHE. ML:1.8 0.000107445 0.42 AML other m 2021-06-19T22:56:24.23
IV.ATCC.EHE. ML:1.4 0.000043650000000000004 0.34 AML other m 2021-06-19T22:56:24.38
IV.T0110.HHE. ML:1.5 0.00005335 0.52 AML other m 2021-06-19T22:56:24.36
IV.T0110.HHN. ML:1.7 0.00007419999999999999 0.4 AML other m 2021-06-19T22:56:25.41
IV.VCEL.EHN. ML:1.4 0.000050549999999999995 0.26 AML other m 2021-06-19T22:56:26.17
IV.FAGN.HHE. ML:1.8 0.00011649999999999999 0.4 AML other m 2021-06-19T22:56:26.44
IV.VCEL.EHE. ML:1.5 0.00005964999999999999 0.32 AML other m 2021-06-19T22:56:27.47
IV.PP3.EHE. ML:2.0 0.0001385 0.5 AML other m 2021-06-19T22:56:27.89
IV.MURB.HHN. ML:1.6 0.00005885 1.36 AML other m 2021-06-19T22:56:28.22
IV.ARVD.HHN. ML:1.2 0.000020799999999999997 0.12 AML other m 2021-06-19T22:56:28.85
IV.MURB.HHE. ML:1.7 0.0000652 1.76 AML other m 2021-06-19T22:56:28.10
IV.ARVD.HHE. ML:1.3 0.000025099999999999997 0.5 AML other m 2021-06-19T22:56:30.34
IV.NARO.HHN. ML:1.1 0.000009930000000000001 1.34 AML other m 2021-06-19T22:56:37.80
IV.PP3.EHN. ML:2.0 0.0001295 0.08 AML other m 2021-06-19T22:56:38.26
IV.ATFO.HHN. ML:1.7 0.0000658 0.34 AML other m 2021-06-19T22:56:38.17
IV.ATFO.HHE. ML:1.8 0.00006775000000000001 0.18 AML other m 2021-06-19T22:56:38.38
IV.NARO.HHE. ML:1.2 0.00001405 0.38 AML other m 2021-06-19T22:56:41.85
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