Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 08-02-2023 and time 06:50:05 (UTC) in region 6 km E Accumoli (RI)

A magnitude ML 1.4 earthquake occured in region: 6 km E Accumoli (RI), on

  • 08-02-2023 06:50:05 (UTC)
  • 08-02-2023 07:50:05 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7190, 13.3080 at 12 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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 6 667 667
Arquata del Tronto AP 6 1178 1845
Amatrice RI 10 2657 4502
Acquasanta Terme AP 10 2916 7418
Montegallo AP 14 523 7941
Valle Castellana TE 16 977 8918
Cittareale RI 16 482 9400
Rocca Santa Maria TE 18 537 9937
Campotosto AQ 19 542 10479
Norcia PG 19 4957 15436
Cortino TE 20 656 16092

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of Teramo (54892 inhabitants)
42 Km N of L'Aquila (69753 inhabitants)
56 Km E of Foligno (57155 inhabitants)
57 Km E of Terni (111501 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
82 Km NW of Chieti (51815 inhabitants)
86 Km SE of Perugia (166134 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km NE of Tivoli (56533 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
Reviewed
Rev100 		ML 1.4 2023-02-08
06:50:05		 42.7193 13.308 12 2023-02-08
07:57:58		 Sala Sismica INGV-Roma 114249191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-08 06:50:05 ± 0.05
Latitude 42.7193 ± 0.0027
Longitude 13.3080 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114249191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 350
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
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) 70
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.07464
Epicentral distance of station farthest from the epicenter (degree) 0.46405
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 114249191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-08 07:57:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MML1.EHZ. 2023-02-08T06:50:21.96 0.6 undecidable manual S 328 0.4641 92 0.16 46
IV.CESI.HHZ. 2023-02-08T06:50:20.40 0.6 undecidable manual S 314 0.4110 92 0.19 46
IV.CSP1.EHZ. 2023-02-08T06:50:19.44 0.6 undecidable manual S 349 0.3795 92 0.14 47
IV.FDMO.HHZ. 2023-02-08T06:50:18.60 0.3 undecidable manual S 333 0.3561 93 0.02 73
IV.GIGS.HHZ. 2023-02-08T06:50:17.52 0.3 undecidable manual S 144 0.3301 93 -0.3 69
IV.LNSS.HHZ. 2023-02-08T06:50:14.89 0.3 undecidable manual S 239 0.2284 95 0.06 74
IV.TERO.HHZ. 2023-02-08T06:50:14.91 0.3 undecidable manual S 114 0.2383 95 -0.19 72
IV.MC2.EHZ. 2023-02-08T06:50:14.43 0.3 undecidable manual S 336 0.2104 96 0.13 73
IV.MML1.EHZ. 2023-02-08T06:50:14.82 1.0 negative manual P 328 0.4641 92 -0.13 23
IV.RM33.EHZ. 2023-02-08T06:50:14.86 0.6 undecidable manual S 198 0.2212 96 0.25 47
IV.MMO1.EHZ. 2023-02-08T06:50:13.27 0.3 undecidable manual S 4 0.1808 99 -0.14 73
IV.CSP1.EHZ. 2023-02-08T06:50:13.36 0.1 undecidable manual P 349 0.3795 92 -0.14 94
IV.CAMP.HHZ. 2023-02-08T06:50:13.86 0.3 undecidable manual S 158 0.1979 97 -0.06 74
IV.CESI.HHZ. 2023-02-08T06:50:13.91 0.3 negative manual P 314 0.4110 92 -0.12 70
IV.NRCA.HHZ. 2023-02-08T06:50:13.15 0.6 undecidable manual S 309 0.1826 99 -0.31 47
IV.GIGS.HHZ. 2023-02-08T06:50:13.00 0.1 undecidable manual P 144 0.3301 93 0.35 90
IV.MF5.EHZ. 2023-02-08T06:50:12.35 0.1 positive manual P 22 0.2905 94 0.38 91
IV.FDMO.HHZ. 2023-02-08T06:50:12.88 0.1 undecidable manual P 333 0.3561 93 -0.21 93
IV.TERO.HHZ. 2023-02-08T06:50:11.00 0.3 undecidable manual P 114 0.2383 95 -0.08 74
IV.NRCA.HHZ. 2023-02-08T06:50:10.00 0.1 positive manual P 309 0.1826 99 -0.13 98
IV.RM33.EHZ. 2023-02-08T06:50:10.79 1.0 positive manual P 198 0.2212 96 0 25
IV.MTRA.EHZ. 2023-02-08T06:50:10.61 0.3 undecidable manual S 60 0.0746 135 0.01 77
IV.MMO1.EHZ. 2023-02-08T06:50:10.07 0.1 undecidable manual P 4 0.1808 99 -0.03 100
IV.LNSS.HHZ. 2023-02-08T06:50:10.89 0.1 positive manual P 239 0.2284 95 -0.03 99
IV.SMA1.EHZ. 2023-02-08T06:50:10.87 0.3 undecidable manual S 167 0.0908 127 -0.09 75
IV.CAMP.HHZ. 2023-02-08T06:50:10.39 1.0 positive manual P 158 0.1979 97 -0.01 25
IV.MC2.EHZ. 2023-02-08T06:50:10.63 0.3 positive manual P 336 0.2104 96 0.02 75
IV.MTRA.EHZ. 2023-02-08T06:50:08.64 0.1 negative manual P 60 0.0746 135 0.17 99
IV.SMA1.EHZ. 2023-02-08T06:50:08.88 1.0 undecidable manual P 167 0.0908 127 0.2 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.5 0.00039083585 0.0832 AML other m 2023-02-08T06:50:10.64
IV.MTRA.HNE. ML:1.5 0.0004034744 0.0704 AML other m 2023-02-08T06:50:10.68
IV.MTRA.HNN. ML:1.7 0.0006048449499999999 0.1024 AML other m 2023-02-08T06:50:10.63
IV.MTRA.EHN. ML:1.7 0.0005988145499999999 0.0832 AML other m 2023-02-08T06:50:10.64
IV.SMA1.EHN. ML:2.0 0.00106850435 0.1408 AML other m 2023-02-08T06:50:11.18
IV.SMA1.EHE. ML:1.9 0.000905 0.14 AML other m 2023-02-08T06:50:11.26
IV.NRCA.HHN. ML:1.6 0.00030464124999999995 0.08 AML other m 2023-02-08T06:50:13.34
IV.NRCA.HNN. ML:1.8 0.00043 0.16 AML other m 2023-02-08T06:50:13.35
IV.NRCA.HNE. ML:1.8 0.0004330525 0.1312 AML other m 2023-02-08T06:50:13.28
IV.NRCA.HHE. ML:1.8 0.00047784455 0.1216 AML other m 2023-02-08T06:50:13.28
IV.MMO1.EHN. ML:1.4 0.0001637323855 0.0608 AML other m 2023-02-08T06:50:13.67
IV.CAMP.HHN. ML:1.2 0.0000996 1.52 AML other m 2023-02-08T06:50:13.20
IV.CAMP.HHE. ML:1.0 0.00006446893500000001 0.2592 AML other m 2023-02-08T06:50:13.00
IV.MMO1.EHE. ML:1.3 0.0001445 0.28 AML other m 2023-02-08T06:50:14.32
IV.LNSS.HHN. ML:1.5 0.00016549999999999998 1.68 AML other m 2023-02-08T06:50:14.09
IV.TERO.HHE. ML:1.3 0.000116030995 0.08 AML other m 2023-02-08T06:50:15.06
IV.TERO.HHN. ML:1.2 0.00009573914 0.08 AML other m 2023-02-08T06:50:15.07
IV.LNSS.HHE. ML:1.3 0.00011899021 0.1024 AML other m 2023-02-08T06:50:16.36
IV.FDMO.HHN. ML:1.2 0.000055400000000000005 1.28 AML other m 2023-02-08T06:50:18.78
IV.FDMO.HHE. ML:1.0 0.000032623645 0.1984 AML other m 2023-02-08T06:50:18.67
IV.MMO1.HNE. ML:2.9 0.0057867175 0.5984 AML other m 2023-02-08T06:50:09.31
IV.MMO1.HNN. ML:2.8 0.0048345425000000004 0.7296 AML other m 2023-02-08T06:50:12.39
IV.MC2.EHE. ML:1.6 0.00021491055 0.1408 AML other m 2023-02-08T06:50:15.12
IV.MC2.EHN. ML:1.8 0.00036834454999999997 0.1792 AML other m 2023-02-08T06:50:14.97
IV.RM33.HNN. ML:1.5 0.0001656089 0.3712 AML other m 2023-02-08T06:50:17.74
IV.RM33.EHE. ML:1.0 0.00006320625000000001 0.1408 AML other m 2023-02-08T06:50:15.32
IV.RM33.EHN. ML:1.0 0.000054830435 0.0992 AML other m 2023-02-08T06:50:15.13
IV.TERO.HNE. ML:1.4 0.00013424352000000002 0.0992 AML other m 2023-02-08T06:50:15.52
IV.GIGS.HHE. ML:0.4 0.000012258314999999999 0.3808 AML other m 2023-02-08T06:50:18.79
IV.CSP1.EHN. ML:1.4 0.000084107885 0.2784 AML other m 2023-02-08T06:50:19.64
IV.CESI.HHE. ML:1.1 0.000034397949999999995 0.0992 AML other m 2023-02-08T06:50:20.78
IV.CESI.HHN. ML:1.4 0.000072023105 0.1984 AML other m 2023-02-08T06:50:21.07
IV.MML1.EHE. ML:1.0 0.000026547749999999993 0.16 AML other m 2023-02-08T06:50:23.62
IV.MML1.EHN. ML:1.2 0.000038656125 0.2592 AML other m 2023-02-08T06:50:23.14
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