Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 23-01-2022 and time 06:23:10 (Italy) in region 7 km NW Accumoli (RI)

A magnitude ML 1.1 earthquake occured in region: 7 km NW Accumoli (RI), on

  • 23-01-2022 05:23:10 (UTC)
  • 23-01-2022 06:23:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7290, 13.1750 at 11 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.

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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
Norcia PG 10 4957 5624
Arquata del Tronto AP 11 1178 6802
Cittareale RI 12 482 7284
Cascia PG 13 3217 10501
Amatrice RI 14 2657 13158
Montegallo AP 18 523 13681
Castelsantangelo sul Nera MC 19 281 13962
Poggiodomo PG 20 117 14079
Acquasanta Terme AP 20 2916 16995

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
46 Km NW of L'Aquila (69753 inhabitants)
46 Km SE of Foligno (57155 inhabitants)
47 Km E of Terni (111501 inhabitants)
77 Km SE of Perugia (166134 inhabitants)
83 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km W of Pescara (121014 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
92 Km W of Chieti (51815 inhabitants)
94 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
Reviewed
Rev100 		ML 1.1 2022-01-23
05:23:10		 42.7293 13.175 11 2022-01-23
05:33:17		 Sala Sismica INGV-Roma 100076651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-01-23 05:23:10 ± 0.05
Latitude 42.7293 ± 0.0027
Longitude 13.1750 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 100076651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 303
Semi-minor axis of confidence ellipse (meter) 170
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36333
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 100076651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-01-23 05:33:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RMP.HHZ. 2022-01-23T05:23:43.80 3.0 undecidable manual S 0.03 0
IV.MC2.EHZ. 2022-01-23T05:23:18.17 0.6 undecidable manual S 3 20.2686 118 0.16 50
IV.CSP1.EHZ. 2022-01-23T05:23:17.83 0.6 positive manual P 3 40.3263 50 0.06 49
IV.MTRA.EHZ. 2022-01-23T05:23:17.08 0.3 undecidable manual S 80 18.2706 120 -0.35 72
IV.LNSS.HHZ. 2022-01-23T05:23:17.16 0.3 undecidable manual S 218 17.7711 121 -0.12 76
IV.TERO.HHZ. 2022-01-23T05:23:17.27 0.1 undecidable manual P 109 36.9297 50 0.02 100
IV.SMA1.EHZ. 2022-01-23T05:23:17.32 0.3 undecidable manual S 130 17.0718 122 0.26 74
IV.RM33.EHZ. 2022-01-23T05:23:15.22 0.3 positive manual P 172 24.6531 50 -0.14 75
IV.NRCA.HHZ. 2022-01-23T05:23:15.73 0.3 undecidable manual S 337 12.5763 130 -0.07 78
IV.GAVE.EHZ. 2022-01-23T05:23:15.13 0.6 positive manual P 260 23.2545 50 -0.01 51
IV.MMO1.EHZ. 2022-01-23T05:23:15.05 0.3 undecidable manual P 33 22.5552 50 0.02 77
IV.LNSS.HHZ. 2022-01-23T05:23:14.25 0.3 negative manual P 218 17.7711 121 0.01 78
IV.SMA1.EHZ. 2022-01-23T05:23:14.39 0.6 negative manual P 130 17.0718 122 0.28 49
IV.MC2.EHZ. 2022-01-23T05:23:14.77 0.6 undecidable manual P 3 20.2686 118 0.11 51
IV.MTRA.EHZ. 2022-01-23T05:23:14.18 0.6 undecidable manual P 80 18.2706 120 -0.14 50
IV.NRCA.HHZ. 2022-01-23T05:23:13.52 1.0 undecidable manual P 337 12.5763 130 0.14 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.4 0.00023776195 0.0608 AML other m 2022-01-23T05:23:15.83
IV.NRCA.HHN. ML:1.3 0.000235 0.06 AML other m 2022-01-23T05:23:15.80
IV.LNSS.HHN. ML:1.2 0.00011449999999999999 0.74 AML other m 2022-01-23T05:23:17.59
IV.LNSS.HHE. ML:0.9 0.000069489865 0.1024 AML other m 2022-01-23T05:23:17.59
IV.GAVE.EHE. ML:1.0 0.00006325 0.16 AML other m 2022-01-23T05:23:19.25
IV.GAVE.EHN. ML:0.9 0.000054199999999999996 0.14 AML other m 2022-01-23T05:23:19.60
IV.NRCA.HNE. ML:1.5 0.00032096904999999996 0.56 AML other m 2022-01-23T05:23:22.67
IV.NRCA.HNN. ML:1.4 0.00027263970000000005 0.8992 AML other m 2022-01-23T05:23:14.56
IV.MTRA.EHE. ML:0.8 0.00004995964 0.16 AML other m 2022-01-23T05:23:18.04
IV.MTRA.EHN. ML:0.6 0.000030616045 0.0768 AML other m 2022-01-23T05:23:17.27
IV.MTRA.HNE. ML:1.1 0.0000940243 0.4576 AML other m 2022-01-23T05:23:22.44
IV.MTRA.HNN. ML:1.0 0.000084999165 0.56 AML other m 2022-01-23T05:23:24.64
IV.LNSS.HNE. ML:1.2 0.000131782455 0.5696 AML other m 2022-01-23T05:23:19.20
IV.LNSS.HNN. ML:1.3 0.00015470886000000002 0.7712 AML other m 2022-01-23T05:23:14.14
IV.SMA1.EHE. ML:0.8 0.000059883085 0.1984 AML other m 2022-01-23T05:23:18.12
IV.SMA1.EHN. ML:0.7 0.000045879645 0.2176 AML other m 2022-01-23T05:23:19.14
IV.MC2.EHE. ML:0.8 0.00003899261500000001 0.32 AML other m 2022-01-23T05:23:21.90
IV.MC2.EHN. ML:1.0 0.00007171485949999999 0.1792 AML other m 2022-01-23T05:23:18.86
IV.MMO1.HNE. ML:2.9 0.0050438615 0.7104 AML other m 2022-01-23T05:23:16.79
IV.MMO1.HNN. ML:2.9 0.0059775205 0.8992 AML other m 2022-01-23T05:23:17.03
IV.MMO1.EHE. ML:0.7 0.000030131362 0.8992 AML other m 2022-01-23T05:23:26.00
IV.MMO1.EHN. ML:0.9 0.00005399086 0.08 AML other m 2022-01-23T05:23:18.75
IV.GAVE.HNE. ML:1.2 0.00010636354 0.9312 AML other m 2022-01-23T05:23:14.70
IV.GAVE.HNN. ML:1.5 0.00017985360000000002 0.7488 AML other m 2022-01-23T05:23:21.98
IV.RM33.HNE. ML:1.3 0.00012340257000000002 0.768 AML other m 2022-01-23T05:23:22.42
IV.RM33.HNN. ML:1.5 0.00017229259999999998 1.152 AML other m 2022-01-23T05:23:22.02
IV.RM33.EHE. ML:0.7 0.000027902175 0.1216 AML other m 2022-01-23T05:23:19.58
IV.RM33.EHN. ML:0.8 0.000033448605 0.24 AML other m 2022-01-23T05:23:19.23
IV.TERO.HHE. ML:1.0 0.000042443065000000005 0.8 AML other m 2022-01-23T05:23:35.04
IV.TERO.HHN. ML:0.9 0.000030901024999999996 1.3792 AML other m 2022-01-23T05:23:16.67
IV.TERO.HNE. ML:1.5 0.00011898829999999999 0.7296 AML other m 2022-01-23T05:23:34.02
IV.TERO.HNN. ML:1.6 0.00016254805 0.7008 AML other m 2022-01-23T05:23:31.59
IV.CSP1.EHE. ML:1.2 0.00006003149000000001 1.3216 AML other m 2022-01-23T05:23:30.00
IV.CSP1.EHN. ML:1.5 0.00011497553999999999 2.56 AML other m 2022-01-23T05:23:22.37
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