Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 02-02-2023 and time 07:04:41 (Italy) in region 7 km NW Accumoli (RI)

A magnitude ML 1.7 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 02-02-2023 06:04:41 (UTC)
  • 02-02-2023 07:04:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7490, 13.1940 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.

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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
Arquata del Tronto AP 9 1178 1845
Norcia PG 10 4957 6802
Cittareale RI 15 482 7284
Cascia PG 15 3217 10501
Amatrice RI 15 2657 13158
Montegallo AP 16 523 13681
Castelsantangelo sul Nera MC 17 281 13962
Acquasanta Terme AP 18 2916 16878
Preci PG 19 724 17602

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km W of Teramo (54892 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
49 Km E of Terni (111501 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
89 Km W of Pescara (121014 inhabitants)
91 Km W of Chieti (51815 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km NE of Tivoli (56533 inhabitants)
96 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 2023-02-02
06:04:41		 42.7488 13.1935 11 2024-03-01
17:18:15		 Bollettino Sismico Italiano INGV 120439501
Reviewed
Rev100 		ML 1.6 2023-02-02
06:04:41		 42.7513 13.1923 11 2023-02-02
06:15:08		 Sala Sismica INGV-Roma 113976181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-02 06:04:41 ± 0.03
Latitude 42.7488 ± 0.0018
Longitude 13.1935 ± 0.0037
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 120439501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 258
Semi-minor axis of confidence ellipse (meter) 144
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 74
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 48
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.10252
Epicentral distance of station farthest from the epicenter (degree) 0.67359
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.4
Num. used stations 74
Type of magnitude ML
Reference to an origin 120439501
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-24 14:32:48

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 113976181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-02 06:15:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T0110.HHZ. 2023-02-02T06:04:54.03 0.3 undecidable manual P 140 74.7696 50 -0.08 67
IV.GUMA.HHZ. 2023-02-02T06:04:54.12 0.3 undecidable manual S 18 36.6411 50 0.67 61
IV.CESI.HHZ. 2023-02-02T06:04:53.54 0.6 undecidable manual S 321 36.8298 50 0.04 48
IV.TERO.HHZ. 2023-02-02T06:04:53.22 0.6 undecidable manual S 113 36.2415 50 -0.12 47
IV.CSP1.EHZ. 2023-02-02T06:04:53.74 0.6 undecidable manual S 1 38.0286 50 -0.08 48
IV.CING.HHZ. 2023-02-02T06:04:53.56 0.3 undecidable manual P 0 69.4749 50 0.26 65
IV.FDMO.HHZ. 2023-02-02T06:04:52.20 0.6 undecidable manual S 345 33.0447 50 -0.29 46
IV.VCEL.EHZ. 2023-02-02T06:04:52.99 0.3 undecidable manual P 126 65.8896 50 0.25 66
IV.ATCC.EHZ. 2023-02-02T06:04:52.81 0.3 undecidable manual P 317 66.0894 50 0.05 68
IV.CAMP.HHZ. 2023-02-02T06:04:51.47 0.6 undecidable manual S 143 29.4483 50 -0.06 49
IV.SNTG.HHZ. 2023-02-02T06:04:51.51 0.3 undecidable manual P 340 59.7957 50 -0.29 66
IV.FIAM.HHZ. 2023-02-02T06:04:50.92 0.6 undecidable manual P 187 53.7018 50 0.06 47
IV.MOMA.HHZ. 2023-02-02T06:04:50.61 0.1 undecidable manual P 277 51.1155 50 0.15 92
IV.FEMA.HNZ. 2023-02-02T06:04:50.47 0.6 undecidable manual S 334 26.3514 50 -0.23 47
IV.CESX.HHZ. 2023-02-02T06:04:50.65 0.6 undecidable manual P 253 51.9036 50 0.07 47
IV.RM33.EHZ. 2023-02-02T06:04:50.75 0.6 undecidable manual S 176 26.6511 50 -0.03 49
IV.LNSS.HHZ. 2023-02-02T06:04:49.14 0.6 undecidable manual S 218 20.4684 117 0.03 50
IV.MML1.EHZ. 2023-02-02T06:04:49.20 0.1 undecidable manual P 336 44.3223 50 -0.21 92
IV.GIGS.HHZ. 2023-02-02T06:04:49.15 0.1 undecidable manual P 137 45.1215 50 -0.39 88
IV.GUMA.HHZ. 2023-02-02T06:04:48.50 0.1 undecidable manual P 18 36.6411 50 0.26 92
7F.SIB1.EHZ. 2023-02-02T06:04:48.26 0.6 undecidable manual S 21 17.3715 122 0.09 49
IV.ARRO.EHZ. 2023-02-02T06:04:48.91 0.3 undecidable manual P 242 39.627 50 0.22 69
IV.SMA1.EHZ. 2023-02-02T06:04:48.40 0.6 undecidable manual S 139 17.4714 121 0.18 48
IV.CESI.HHZ. 2023-02-02T06:04:48.11 0.1 negative manual P 321 36.8298 50 -0.15 94
IV.MC2.EHZ. 2023-02-02T06:04:48.58 0.6 undecidable manual S 359 18.0708 121 0.2 48
IV.TERO.HHZ. 2023-02-02T06:04:48.05 0.1 undecidable manual P 113 36.2415 50 -0.12 95
IV.CSP1.EHZ. 2023-02-02T06:04:48.42 0.1 undecidable manual P 1 38.0286 50 -0.03 96
7F.SIB2.EHZ. 2023-02-02T06:04:48.18 0.6 undecidable manual S 30 18.1707 120 -0.23 48
IV.MMO1.EHZ. 2023-02-02T06:04:48.83 0.3 undecidable manual S 33 19.869 118 -0.11 73
IV.MF5.EHZ. 2023-02-02T06:04:48.16 0.1 undecidable manual P 39 34.2435 50 0.3 92
IV.CAMP.HHZ. 2023-02-02T06:04:47.05 0.1 negative manual P 143 29.4483 50 -0.07 97
7F.SIB3.EHZ. 2023-02-02T06:04:47.41 0.3 undecidable manual S 24 15.3735 125 -0.17 73
IV.FDMO.HHZ. 2023-02-02T06:04:47.47 0.1 undecidable manual P 345 33.0447 50 -0.21 94
IV.MTRA.HNZ. 2023-02-02T06:04:47.79 0.3 undecidable manual S 87 16.5723 123 -0.15 73
IV.NRCA.HHZ. 2023-02-02T06:04:46.36 0.3 undecidable manual S 326 11.3775 133 -0.16 74
IV.FEMA.HNZ. 2023-02-02T06:04:46.55 0.3 undecidable manual P 334 26.3514 50 -0.1 73
IV.RM33.EHZ. 2023-02-02T06:04:46.68 0.1 undecidable manual P 176 26.6511 50 -0.01 99
7F.SIB2.EHZ. 2023-02-02T06:04:45.28 0.3 undecidable manual P 30 18.1707 120 -0.05 75
IV.MMO1.EHZ. 2023-02-02T06:04:45.61 0.1 undecidable manual P 33 19.869 118 -0.02 100
7F.SIB1.EHZ. 2023-02-02T06:04:45.31 0.3 undecidable manual P 21 17.3715 122 0.12 74
IV.LNSS.HHZ. 2023-02-02T06:04:45.73 0.1 undecidable manual P 218 20.4684 117 0 100
IV.SMA1.EHZ. 2023-02-02T06:04:45.35 0.1 negative manual P 139 17.4714 121 0.14 98
IV.MTRA.HNZ. 2023-02-02T06:04:45.12 0.3 undecidable manual P 87 16.5723 123 0.06 75
IV.MC2.EHZ. 2023-02-02T06:04:45.40 0.1 positive manual P 359 18.0708 121 0.09 99
IV.NRCA.HHZ. 2023-02-02T06:04:44.35 0.1 negative manual P 326 11.3775 133 0.12 99
7F.SIB3.EHZ. 2023-02-02T06:04:44.88 0.3 undecidable manual P 24 15.3735 125 0.03 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.4 0.002815 0.12 AML other m 2023-02-02T06:04:46.38
IV.NRCA.HHN. ML:2.5 0.0032592475 0.1216 AML other m 2023-02-02T06:04:46.38
IV.NRCA.HHE. ML:2.5 0.0033049999999999998 0.08 AML other m 2023-02-02T06:04:46.38
IV.NRCA.HNE. ML:2.5 0.003375 0.08 AML other m 2023-02-02T06:04:46.39
IV.SMA1.EHE. ML:1.2 0.0001338482 0.2176 AML other m 2023-02-02T06:04:48.51
IV.SMA1.EHN. ML:1.2 0.0001349478 0.5792 AML other m 2023-02-02T06:04:48.81
IV.MMO1.EHN. ML:1.6 0.00030981785 0.08 AML other m 2023-02-02T06:04:48.88
IV.MMO1.EHE. ML:1.8 0.00046046115 0.1408 AML other m 2023-02-02T06:04:48.90
IV.MMO1.HNN. ML:2.5 0.0024890557000000002 1.4304 AML other m 2023-02-02T06:04:49.20
IV.LNSS.HNN. ML:1.8 0.0005365 0.16 AML other m 2023-02-02T06:04:49.26
IV.MC2.EHE. ML:2.3 0.0015400000000000001 0.26 AML other m 2023-02-02T06:04:49.26
IV.LNSS.HHN. ML:1.9 0.000579 0.26 AML other m 2023-02-02T06:04:49.34
IV.MMO1.HNE. ML:3.0 0.007272695000000001 1.1392 AML other m 2023-02-02T06:04:49.69
IV.MC2.EHN. ML:2.4 0.002175 0.24 AML other m 2023-02-02T06:04:49.88
IV.LNSS.HHE. ML:1.8 0.00047 0.14 AML other m 2023-02-02T06:04:50.07
IV.LNSS.HNE. ML:1.8 0.0004090092 0.1408 AML other m 2023-02-02T06:04:50.00
IV.RM33.HNN. ML:1.8 0.0003177889 0.1312 AML other m 2023-02-02T06:04:51.23
IV.RM33.EHN. ML:1.8 0.00030919485 0.1408 AML other m 2023-02-02T06:04:51.23
IV.RM33.HNE. ML:1.9 0.0004048236 0.1504 AML other m 2023-02-02T06:04:51.19
IV.RM33.EHE. ML:1.8 0.0003845 0.7 AML other m 2023-02-02T06:04:51.19
IV.FDMO.HHN. ML:1.6 0.0001885 0.2 AML other m 2023-02-02T06:04:52.46
IV.FDMO.HHE. ML:1.6 0.00016052325 1.7568 AML other m 2023-02-02T06:04:52.06
IV.TERO.HNN. ML:2.0 0.00041092805 0.1888 AML other m 2023-02-02T06:04:53.64
IV.CAMP.HHN. ML:0.9 0.000036479765 0.3392 AML other m 2023-02-02T06:04:53.72
IV.TERO.HHE. ML:1.7 0.0001870859 0.1408 AML other m 2023-02-02T06:04:53.84
IV.CAMP.HHE. ML:0.9 0.000036612005 0.2592 AML other m 2023-02-02T06:04:53.84
IV.TERO.HHN. ML:1.9 0.00028760564999999997 0.0608 AML other m 2023-02-02T06:04:54.12
IV.CSP1.EHN. ML:2.2 0.0006950000000000001 0.28 AML other m 2023-02-02T06:04:54.03
IV.ATCC.HNN. ML:1.9 0.000150050855 1.1008 AML other m 2023-02-02T06:04:54.90
IV.GUMA.HHE. ML:2.6 0.0013700000000000001 0.24 AML other m 2023-02-02T06:04:54.47
IV.GUMA.HNE. ML:2.4 0.000865 0.3 AML other m 2023-02-02T06:04:54.65
IV.GUMA.HHN. ML:2.3 0.0007377688 0.2208 AML other m 2023-02-02T06:04:54.56
IV.GUMA.HNN. ML:2.5 0.0012250000000000002 0.24 AML other m 2023-02-02T06:04:54.46
IV.SNTG.HNN. ML:1.9 0.00017503940000000002 1.1104 AML other m 2023-02-02T06:04:54.97
IV.CESI.HHN. ML:1.4 0.00009541061000000001 1.8208 AML other m 2023-02-02T06:04:54.08
IV.CESI.HHE. ML:1.4 0.000092 1.86 AML other m 2023-02-02T06:04:55.93
IV.CESI.HNE. ML:1.4 0.000094282995 1.8592 AML other m 2023-02-02T06:04:55.94
IV.CSP1.EHE. ML:2.1 0.00043129345 0.2176 AML other m 2023-02-02T06:04:55.32
IV.CESI.HNN. ML:1.5 0.000113778885 0.24 AML other m 2023-02-02T06:04:55.56
IV.MF5.EHE. ML:1.2 0.00006099082 0.1984 AML other m 2023-02-02T06:04:55.66
IV.ARRO.EHE. ML:1.4 0.00008585000000000001 0.18 AML other m 2023-02-02T06:04:55.84
IV.ARRO.EHN. ML:1.3 0.000062900095 0.1408 AML other m 2023-02-02T06:04:55.93
IV.FIAM.HNN. ML:2.1 0.00029718915 1.28 AML other m 2023-02-02T06:04:56.74
IV.MML1.EHN. ML:1.4 0.00007189999999999999 0.2 AML other m 2023-02-02T06:04:56.34
IV.GIGS.HHE. ML:0.8 0.000020152945500000003 0.0576 AML other m 2023-02-02T06:04:57.31
IV.GIGS.HHN. ML:0.7 0.0000158643045 0.08 AML other m 2023-02-02T06:04:57.55
IV.MML1.EHE. ML:1.3 0.000053966155 0.2816 AML other m 2023-02-02T06:04:57.63
IV.MF5.EHN. ML:1.3 0.000079006935 1.6 AML other m 2023-02-02T06:04:58.08
IV.MOMA.HHN. ML:1.8 0.000148 0.18 AML other m 2023-02-02T06:04:58.37
IV.MOMA.HNN. ML:1.8 0.00015380559999999998 0.1984 AML other m 2023-02-02T06:04:58.37
IV.MOMA.HNE. ML:2.1 0.00030974295 0.1888 AML other m 2023-02-02T06:04:58.49
IV.MOMA.HHE. ML:2.1 0.0003105 0.2 AML other m 2023-02-02T06:04:58.49
IV.FIAM.HHE. ML:1.6 0.000090771325 0.2592 AML other m 2023-02-02T06:04:59.34
IV.TERO.HNE. ML:1.8 0.00021606499000000003 0.3616 AML other m 2023-02-02T06:04:59.31
IV.CESX.HHN. ML:1.3 0.000047819985000000005 0.2816 AML other m 2023-02-02T06:05:00.25
IV.FIAM.HHN. ML:1.4 0.00006427365999999999 0.2816 AML other m 2023-02-02T06:05:01.40
IV.CESX.HHE. ML:1.2 0.000037199999999999996 0.6 AML other m 2023-02-02T06:05:01.67
IV.SNTG.HHN. ML:1.1 0.000027359285 0.0992 AML other m 2023-02-02T06:05:01.76
IV.SNTG.HHE. ML:1.1 0.00002695 0.64 AML other m 2023-02-02T06:05:02.21
IV.CING.HNE. ML:3.4 0.004407036 0.6208 AML other m 2023-02-02T06:05:02.53
IV.MML1.HNE. ML:1.7 0.00014268745 0.6496 AML other m 2023-02-02T06:05:02.47
IV.MML1.HNN. ML:1.8 0.00016818494999999999 0.5824 AML other m 2023-02-02T06:05:03.11
IV.ATCC.EHN. ML:1.2 0.000028864560000000002 0.1824 AML other m 2023-02-02T06:05:04.41
IV.FIAM.HNE. ML:2.3 0.00046966065 1.3696 AML other m 2023-02-02T06:05:04.88
IV.CING.HHE. ML:1.5 0.000052400509999999995 0.24 AML other m 2023-02-02T06:05:05.33
IV.CING.HHN. ML:1.4 0.00004125 0.62 AML other m 2023-02-02T06:05:05.68
IV.VCEL.EHN. ML:1.4 0.00004470902 0.2016 AML other m 2023-02-02T06:05:05.88
IV.VCEL.EHE. ML:1.4 0.000049508435000000004 1.5584 AML other m 2023-02-02T06:05:06.16
IV.SNTG.HNE. ML:1.8 0.00011368916499999999 0.6912 AML other m 2023-02-02T06:05:10.26
IV.ATCC.EHE. ML:1.3 0.000034926600000000005 0.5184 AML other m 2023-02-02T06:05:11.50
IV.T0110.HHN. ML:1.4 0.000037171820000000004 1.68 AML other m 2023-02-02T06:05:12.94
IV.T0110.HHE. ML:1.4 0.000039539495 0.3424 AML other m 2023-02-02T06:05:12.32
IV.ATCC.HNE. ML:1.8 0.00011844818000000001 0.7488 AML other m 2023-02-02T06:05:17.80
IV.CING.HNN. ML:3.6 0.0060590505 0.9472 AML other m 2023-02-02T06:05:18.92
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