Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 16-09-2022 and time 21:31:48 (UTC) in region 4 km W Accumoli (RI)

A magnitude ML 1.0 earthquake occured in region: 4 km W Accumoli (RI), on

  • 16-09-2022 21:31:48 (UTC)
  • 16-09-2022 23:31:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7050, 13.2000 at 8 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 4 667 667
Cittareale RI 10 482 1149
Arquata del Tronto AP 11 1178 2327
Amatrice RI 11 2657 4984
Norcia PG 13 4957 9941
Cascia PG 15 3217 13158
Acquasanta Terme AP 19 2916 16074
Montegallo AP 19 523 16597

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km W of Teramo (54892 inhabitants)
43 Km NW of L'Aquila (69753 inhabitants)
48 Km E of Terni (111501 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
80 Km SE of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km NE of Guidonia Montecelio (88673 inhabitants)
89 Km W of Chieti (51815 inhabitants)
89 Km NE of Tivoli (56533 inhabitants)
95 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 1.0 2022-09-16
21:31:48		 42.7052 13.2 9 2022-09-16
21:45:20		 Sala Sismica INGV-Roma 109798811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-16 21:31:48 ± 0.06
Latitude 42.7052 ± 0.0027
Longitude 13.2000 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 109798811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 175
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 293
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 24
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.36962
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 109798811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-16 21:45:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIDA.HHZ. 2022-09-16T21:32:30.55 3.0 undecidable manual S -1.39 0
IV.PTRJ.HHZ. 2022-09-16T21:32:19.38 3.0 undecidable manual Pn 2.05 0
IV.PTQR.HHZ. 2022-09-16T21:32:16.43 3.0 undecidable manual S 1.63 0
IV.MF5.EHZ. 2022-09-16T21:32:02.62 0.1 undecidable manual S 34 37.8288 50 0.51 87
IV.FDMO.HHZ. 2022-09-16T21:32:02.00 0.3 undecidable manual S 346 37.8288 50 -0.13 71
IV.CESI.HHZ. 2022-09-16T21:32:02.72 0.3 undecidable manual S 324 41.0256 50 -0.25 69
IV.GAVE.EHZ. 2022-09-16T21:31:58.05 0.1 undecidable manual S 267 24.9528 109 -0.09 98
7F.SIB2.EHE. 2022-09-16T21:31:57.08 0.1 undecidable manual S 22 22.2555 111 -0.18 96
IV.MC2.EHZ. 2022-09-16T21:31:57.81 0.3 undecidable manual S 358 22.8549 110 0.36 70
IV.MMO1.EHZ. 2022-09-16T21:31:57.70 0.1 undecidable manual S 26 23.8539 110 -0.08 98
IV.CESI.HHZ. 2022-09-16T21:31:56.65 1.0 undecidable manual P 324 41.0256 50 -0.41 22
IV.CSP1.EHZ. 2022-09-16T21:31:56.22 3.0 undecidable manual P 0.81 0
7F.SIB3.EHE. 2022-09-16T21:31:56.40 0.1 undecidable manual S 17 19.6692 113 -0.02 100
IV.RM33.EHZ. 2022-09-16T21:31:56.96 0.1 undecidable manual S 177 21.7671 111 -0.14 97
IV.MF5.EHZ. 2022-09-16T21:31:56.41 1.0 undecidable manual P 34 37.8288 50 -0.16 24
IV.FDMO.HHZ. 2022-09-16T21:31:56.22 1.0 negative manual P 346 37.8288 50 -0.35 23
IV.NRCA.HHZ. 2022-09-16T21:31:55.28 0.1 undecidable manual S 334 15.873 118 0.06 100
IV.LNSS.HHZ. 2022-09-16T21:31:55.88 0.1 undecidable manual S 229 17.2716 116 0.22 96
IV.MTRA.EHE. 2022-09-16T21:31:55.48 0.1 undecidable manual S 70 16.9719 117 -0.1 99
IV.GAVE.EHZ. 2022-09-16T21:31:54.17 0.6 negative manual P 267 24.9528 109 -0.1 49
IV.MMO1.EHZ. 2022-09-16T21:31:53.93 0.1 undecidable manual P 26 23.8539 110 -0.13 97
IV.MTRA.EHE. 2022-09-16T21:31:53.08 0.3 undecidable manual P 70 16.9719 117 0.29 71
7F.SIB2.EHE. 2022-09-16T21:31:53.57 0.6 undecidable manual P 22 22.2555 111 -0.19 48
IV.LNSS.HHZ. 2022-09-16T21:31:53.00 0.1 positive manual P 229 17.2716 116 0.16 98
IV.MC2.EHZ. 2022-09-16T21:31:53.93 0.1 undecidable manual P 358 22.8549 110 0.05 99
7F.SIB3.EHE. 2022-09-16T21:31:53.21 0.1 undecidable manual P 17 19.6692 113 -0.07 99
IV.RM33.EHZ. 2022-09-16T21:31:53.60 0.1 undecidable manual P 177 21.7671 111 -0.07 99
IV.NRCA.HHZ. 2022-09-16T21:31:52.72 0.1 undecidable manual P 334 15.873 118 0.13 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:1.2 0.00016858875000000002 0.1408 AML other m 2022-09-16T21:31:56.01
IV.NRCA.HHE. ML:1.4 0.000224 0.08 AML other m 2022-09-16T21:31:55.74
IV.LNSS.HHN. ML:1.2 0.00013123275000000002 0.192 AML other m 2022-09-16T21:31:56.08
IV.LNSS.HHE. ML:1.0 0.00009389999999999999 0.22 AML other m 2022-09-16T21:31:56.11
IV.GAVE.EHN. ML:1.0 0.000056101910000000006 0.1024 AML other m 2022-09-16T21:31:58.21
IV.GAVE.EHE. ML:1.0 0.00006143163 0.1408 AML other m 2022-09-16T21:31:59.91
IV.NRCA.HNE. ML:1.3 0.0001910743 0.0768 AML other m 2022-09-16T21:31:55.70
IV.NRCA.HNN. ML:1.2 0.00014624389999999998 0.1536 AML other m 2022-09-16T21:31:55.47
IV.LNSS.HNE. ML:1.0 0.00009736083499999999 0.3712 AML other m 2022-09-16T21:31:56.99
IV.LNSS.HNN. ML:1.1 0.00011431161 0.1792 AML other m 2022-09-16T21:31:56.08
IV.RM33.EHE. ML:0.8 0.000046344394999999996 0.1024 AML other m 2022-09-16T21:31:57.66
IV.RM33.EHN. ML:0.8 0.000041832539499999994 0.1024 AML other m 2022-09-16T21:31:57.27
IV.MC2.EHE. ML:0.8 0.00004572337 0.1664 AML other m 2022-09-16T21:31:59.99
IV.MC2.EHN. ML:1.0 0.00006678375 0.2432 AML other m 2022-09-16T21:32:00.54
IV.GAVE.HNE. ML:1.2 0.000088632205 0.1792 AML other m 2022-09-16T21:31:58.84
IV.CESI.HHN. ML:0.8 0.000019203554999999997 0.5376 AML other m 2022-09-16T21:32:02.80
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