Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 07-04-2023 and time 06:25:38 (UTC) in region 6 km NW Accumoli (RI)

A magnitude ML 1.7 earthquake occured in region: 6 km NW Accumoli (RI), on

  • 07-04-2023 06:25:38 (UTC)
  • 07-04-2023 08:25:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7440, 13.2190 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 6 667 667
Arquata del Tronto AP 7 1178 1845
Norcia PG 12 4957 6802
Amatrice RI 14 2657 9459
Montegallo AP 15 523 9982
Cittareale RI 15 482 10464
Acquasanta Terme AP 16 2916 13380
Cascia PG 17 3217 16597
Castelsantangelo sul Nera MC 18 281 16878
Montemonaco AP 20 604 17482

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
48 Km E 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)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
100 Km S of Ancona (100861 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 1.7 2023-04-07
06:25:38		 42.7438 13.2187 10 2024-03-01
17:18:03		 Bollettino Sismico Italiano INGV 116454771
Reviewed
Rev100 		ML 1.7 2023-04-07
06:25:38		 42.7483 13.227 11 2023-04-07
06:33:57		 Sala Sismica INGV-Roma 116132941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-07 06:25:38 ± 0.05
Latitude 42.7438 ± 0.0027
Longitude 13.2187 ± 0.0037
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 116454771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 309
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 82
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.11781
Epicentral distance of station farthest from the epicenter (degree) 0.94609
Number of stations at which the event was observed 38
Number of stations from which data was used for origin computation 38
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 54
Type of magnitude ML
Reference to an origin 116454771
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-18 09:55:20

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 38
Type of magnitude ML
Reference to an origin 116132941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-07 06:33:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2023-04-07T06:25:55.50 0.6 undecidable manual P 339 105.0171 50 -0.26 40
IV.PIEI.HHZ. 2023-04-07T06:25:55.86 0.3 undecidable manual P 328 103.8183 50 0.28 60
IV.SSFR.HHZ. 2023-04-07T06:25:53.07 0.3 undecidable manual P 335 84.5487 50 0.46 60
IV.MML1.EHZ. 2023-04-07T06:25:52.83 0.3 undecidable manual S 334 45.621 50 -0.04 71
IV.SAP2.EHZ. 2023-04-07T06:25:52.83 0.3 undecidable manual S 20 41.8248 50 0.99 53
IV.PF6.EHZ. 2023-04-07T06:25:52.16 0.6 undecidable manual S 357 43.7229 50 -0.2 46
IV.MURB.HHZ. 2023-04-07T06:25:51.34 0.6 undecidable manual P 316 80.5638 50 -0.66 38
IV.ARRO.EHZ. 2023-04-07T06:25:51.85 0.6 undecidable manual S 244 41.2254 50 0.16 46
IV.GUMA.HHZ. 2023-04-07T06:25:51.08 0.3 undecidable manual S 15 36.6411 50 0.62 62
IV.CSP1.EHZ. 2023-04-07T06:25:50.91 0.3 undecidable manual S 358 38.628 50 -0.08 71
IV.CESI.HHZ. 2023-04-07T06:25:50.95 0.3 undecidable manual S 319 38.628 50 -0.04 72
IV.MF5.EHZ. 2023-04-07T06:25:50.44 0.6 undecidable manual S 36 33.4443 50 0.84 38
IV.FOSV.EHZ. 2023-04-07T06:25:50.39 0.3 undecidable manual P 329 71.4729 50 -0.21 65
IV.T0110.HHZ. 2023-04-07T06:25:50.56 0.6 undecidable manual P 141 73.0713 50 -0.28 43
IV.EL6.EHZ. 2023-04-07T06:25:49.64 0.3 undecidable manual P 352 65.5899 50 -0.06 68
IV.TERO.HHZ. 2023-04-07T06:25:49.50 0.3 undecidable manual S 113 34.1436 50 -0.3 68
IV.VCEL.EHZ. 2023-04-07T06:25:49.63 0.3 undecidable manual P 127 63.8916 50 0.2 66
IV.SNTG.HHZ. 2023-04-07T06:25:49.20 0.3 undecidable manual P 338 60.9945 50 0.21 66
IV.FDMO.HHZ. 2023-04-07T06:25:49.31 0.3 undecidable manual S 342 34.1436 50 -0.49 66
IT.MTCL.HGZ. 2023-04-07T06:25:49.13 0.3 undecidable manual S 327 32.9448 50 -0.35 68
IV.ATCC.EHZ. 2023-04-07T06:25:49.89 0.3 undecidable manual P 316 67.8765 50 -0.15 66
IV.GAVE.EHZ. 2023-04-07T06:25:48.04 0.3 undecidable manual S 258 27.0507 50 0.13 72
IV.ASSB.HHZ. 2023-04-07T06:25:48.04 0.3 undecidable manual P 306 56.2992 50 -0.22 67
IV.MOMA.HHZ. 2023-04-07T06:25:48.03 0.3 undecidable manual P 277 53.2023 50 0.24 67
IV.SEF1.HNZ. 2023-04-07T06:25:47.05 0.6 undecidable manual P 334 49.8168 50 -0.21 45
IV.FEMA.HNZ. 2023-04-07T06:25:47.82 0.6 undecidable manual S 330 27.8499 50 -0.29 46
IV.CAMP.HHZ. 2023-04-07T06:25:47.78 0.6 undecidable manual S 146 27.8499 50 -0.33 46
IV.RM33.EHZ. 2023-04-07T06:25:47.75 0.3 undecidable manual S 181 26.0517 50 0.11 72
IV.MNTT.EHZ. 2023-04-07T06:25:47.54 0.3 undecidable manual P 41 46.7199 50 0.75 58
IV.ARRO.EHZ. 2023-04-07T06:25:46.10 0.3 undecidable manual P 244 41.2254 50 0.16 69
IV.MML1.EHZ. 2023-04-07T06:25:46.48 0.1 undecidable manual P 334 45.621 50 -0.14 92
IV.PF6.EHZ. 2023-04-07T06:25:46.13 0.3 undecidable manual P 357 43.7229 50 -0.19 69
IV.LNSS.HHZ. 2023-04-07T06:25:46.64 0.3 undecidable manual S 223 21.3675 116 0.31 70
IV.SAP2.EHZ. 2023-04-07T06:25:46.48 0.3 undecidable manual P 20 41.8248 50 0.46 65
IV.GUMA.HHZ. 2023-04-07T06:25:45.44 0.1 undecidable manual P 15 36.6411 50 0.21 92
IV.GIGS.HHZ. 2023-04-07T06:25:45.82 0.3 undecidable manual P 138 43.3233 50 -0.44 65
IV.CSP1.EHZ. 2023-04-07T06:25:45.41 0.1 positive manual P 358 38.628 50 -0.12 94
IV.CESI.HHZ. 2023-04-07T06:25:45.45 0.1 negative manual P 319 38.628 50 -0.08 95
7F.SIB1.EHZ. 2023-04-07T06:25:45.16 0.6 undecidable manual S 14 17.2716 121 0.09 49
IV.MMO1.EHZ. 2023-04-07T06:25:45.52 0.6 undecidable manual S 27 19.3695 118 -0.19 48
7F.SIB3.EHZ. 2023-04-07T06:25:44.28 0.6 undecidable manual S 16 15.1737 125 -0.18 48
7F.SIB2.EHZ. 2023-04-07T06:25:44.90 0.6 undecidable manual S 23 17.7711 120 -0.32 47
IV.FDMO.HHZ. 2023-04-07T06:25:44.72 0.1 negative manual P 342 34.1436 50 -0.13 94
IT.MTCL.HGZ. 2023-04-07T06:25:44.41 0.1 undecidable manual P 327 32.9448 50 -0.25 92
IV.MTRA.EHZ. 2023-04-07T06:25:44.03 0.3 undecidable manual S 84 14.5743 126 -0.26 71
IV.SMA1.EHZ. 2023-04-07T06:25:44.60 0.3 undecidable manual S 143 15.7731 123 -0.04 75
IV.TERO.HHZ. 2023-04-07T06:25:44.57 0.1 undecidable manual P 113 34.1436 50 -0.28 92
IV.MF5.EHZ. 2023-04-07T06:25:44.91 0.1 undecidable manual P 36 33.4443 50 0.18 94
IV.CAMP.HHZ. 2023-04-07T06:25:43.73 0.1 undecidable manual P 146 27.8499 50 -0.14 95
IV.NRCA.HNZ. 2023-04-07T06:25:43.86 0.3 undecidable manual S 320 13.0758 129 -0.02 75
IV.RM33.EHZ. 2023-04-07T06:25:43.63 0.1 positive manual P 181 26.0517 50 0.03 98
IV.GAVE.EHZ. 2023-04-07T06:25:43.81 0.1 positive manual P 258 27.0507 50 0.06 97
IV.FEMA.HNZ. 2023-04-07T06:25:43.73 0.3 undecidable manual P 330 27.8499 50 -0.14 71
IV.SMA1.EHZ. 2023-04-07T06:25:42.04 0.1 undecidable manual P 143 15.7731 123 0.17 97
7F.SIB1.EHZ. 2023-04-07T06:25:42.24 0.1 undecidable manual P 14 17.2716 121 0.12 97
IV.MMO1.EHZ. 2023-04-07T06:25:42.43 0.1 positive manual P 27 19.3695 118 -0.05 98
7F.SIB2.EHZ. 2023-04-07T06:25:42.11 0.1 undecidable manual P 23 17.7711 120 -0.09 98
IV.LNSS.HHZ. 2023-04-07T06:25:42.98 0.1 positive manual P 223 21.3675 116 0.14 96
7F.SIB3.EHZ. 2023-04-07T06:25:41.75 0.1 undecidable manual P 16 15.1737 125 -0.01 100
IV.NRCA.HNZ. 2023-04-07T06:25:41.63 0.1 negative manual P 320 13.0758 129 0.2 97
IV.MTRA.EHZ. 2023-04-07T06:25:41.74 0.3 undecidable manual P 84 14.5743 126 0.07 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.5 0.0032 0.18 AML other m 2023-04-07T06:25:43.90
IV.NRCA.HNE. ML:2.5 0.00317 1.82 AML other m 2023-04-07T06:25:44.91
IV.NRCA.HHN. ML:2.4 0.00246 1.82 AML other m 2023-04-07T06:25:44.96
IV.NRCA.HNN. ML:2.3 0.0023099999999999996 1.8 AML other m 2023-04-07T06:25:44.96
IV.MTRA.HNN. ML:2.3 0.0019 0.72 AML other m 2023-04-07T06:25:44.68
IV.MTRA.EHN. ML:2.3 0.0018700000000000001 0.72 AML other m 2023-04-07T06:25:44.68
IV.SMA1.EHE. ML:1.8 0.0006039999999999999 0.2 AML other m 2023-04-07T06:25:44.85
IV.MTRA.EHE. ML:2.4 0.0023049999999999998 0.82 AML other m 2023-04-07T06:25:45.19
IV.MTRA.HNE. ML:2.3 0.00206 0.82 AML other m 2023-04-07T06:25:45.60
IV.MMO1.EHE. ML:1.6 0.0002845 1 AML other m 2023-04-07T06:25:45.65
IV.SMA1.EHN. ML:1.7 0.000425 0.16 AML other m 2023-04-07T06:25:46.07
IV.MMO1.EHN. ML:1.7 0.0003835 0.82 AML other m 2023-04-07T06:25:46.10
IV.LNSS.HHE. ML:1.8 0.0004195 0.38 AML other m 2023-04-07T06:25:47.06
IV.LNSS.HHN. ML:1.8 0.000383 1.1 AML other m 2023-04-07T06:25:47.39
IV.CAMP.HHN. ML:1.5 0.0001715 1.7 AML other m 2023-04-07T06:25:47.12
IV.CAMP.HHE. ML:1.6 0.0002065 0.24 AML other m 2023-04-07T06:25:48.02
IV.RM33.EHE. ML:1.9 0.00048450000000000007 0.28 AML other m 2023-04-07T06:25:48.26
IV.RM33.EHN. ML:1.8 0.0003675 1.1 AML other m 2023-04-07T06:25:48.98
IV.GAVE.EHN. ML:2.0 0.000593 0.24 AML other m 2023-04-07T06:25:48.61
IV.FDMO.HHN. ML:2.0 0.0003665 0.3 AML other m 2023-04-07T06:25:49.84
IV.FDMO.HHE. ML:1.7 0.00022549999999999998 1.62 AML other m 2023-04-07T06:25:50.98
IV.GAVE.EHE. ML:2.0 0.000494 0.2 AML other m 2023-04-07T06:25:50.29
IV.CSP1.EHN. ML:2.3 0.0006919999999999999 0.36 AML other m 2023-04-07T06:25:51.33
IV.CESI.HHN. ML:2.0 0.00035950000000000006 0.36 AML other m 2023-04-07T06:25:51.33
IV.CESI.HHE. ML:1.6 0.00014250000000000002 0.22 AML other m 2023-04-07T06:25:51.65
IV.MF5.EHN. ML:1.4 0.0001152 0.66 AML other m 2023-04-07T06:25:52.00
IV.GIGS.HHN. ML:1.1 0.00003955 0.5 AML other m 2023-04-07T06:25:52.73
IV.CSP1.EHE. ML:2.1 0.0005045000000000001 0.9 AML other m 2023-04-07T06:25:52.94
IV.GIGS.HHE. ML:1.1 0.00003765 0.88 AML other m 2023-04-07T06:25:53.50
IV.MML1.EHN. ML:1.8 0.000182 0.12 AML other m 2023-04-07T06:25:53.26
IV.MML1.EHE. ML:1.8 0.000203 0.42 AML other m 2023-04-07T06:25:53.57
IV.MF5.EHE. ML:1.4 0.00011635000000000001 1.52 AML other m 2023-04-07T06:25:53.87
IV.CESX.HHE. ML:1.5 0.0000699 0.24 AML other m 2023-04-07T06:25:57.28
IV.SNTG.HHE. ML:1.4 0.0000452 0.5 AML other m 2023-04-07T06:25:58.47
IV.ASSB.HHN. ML:1.4 0.00005550000000000001 0.1 AML other m 2023-04-07T06:25:58.54
IV.CESX.HHN. ML:1.4 0.00006379999999999999 1.4 AML other m 2023-04-07T06:25:58.80
IV.ASSB.HHE. ML:1.5 0.00006500000000000001 1.88 AML other m 2023-04-07T06:25:59.95
IV.SNTG.HHN. ML:1.4 0.000054099999999999994 0.82 AML other m 2023-04-07T06:25:59.99
IV.EL6.EHE. ML:1.7 0.00009964999999999998 0.7 AML other m 2023-04-07T06:26:00.51
IV.FOSV.EHE. ML:1.3 0.000033849999999999996 0.16 AML other m 2023-04-07T06:26:00.90
IV.EL6.EHN. ML:1.8 0.00011975 0.22 AML other m 2023-04-07T06:26:01.09
IV.FOSV.EHN. ML:1.6 0.00006275 0.22 AML other m 2023-04-07T06:26:01.28
IV.VCEL.EHN. ML:1.8 0.00011075 0.96 AML other m 2023-04-07T06:26:01.09
IV.ATCC.EHE. ML:1.5 0.000060650000000000004 1.08 AML other m 2023-04-07T06:26:01.32
IV.ATCC.EHN. ML:1.5 0.00004795 0.62 AML other m 2023-04-07T06:26:02.38
IV.MURB.HHN. ML:1.7 0.00007505000000000001 0.56 AML other m 2023-04-07T06:26:05.75
IV.SSFR.HHE. ML:1.9 0.00011115 0.18 AML other m 2023-04-07T06:26:05.82
IV.MURB.HHE. ML:1.8 0.00007925 0.28 AML other m 2023-04-07T06:26:06.97
IV.VCEL.EHE. ML:1.6 0.00008255 0.48 AML other m 2023-04-07T06:26:07.19
IV.SSFR.HHN. ML:1.8 0.00008295 0.18 AML other m 2023-04-07T06:26:08.66
IV.MPAG.EHE. ML:1.3 0.00002165 0.42 AML other m 2023-04-07T06:26:17.23
IV.PIEI.HHN. ML:1.3 0.0000184 0.5 AML other m 2023-04-07T06:26:17.61
IV.PIEI.HHE. ML:1.4 0.000025050000000000002 0.42 AML other m 2023-04-07T06:26:17.72
IV.MPAG.EHN. ML:1.3 0.00001955 0.68 AML other m 2023-04-07T06:26:22.59
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