Earthquake with magnitude of ML 1.2 on date 22-09-2023 and time 15:04:41 (UTC) in region 5 km W Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 5 km W Accumoli (RI), on

  • 22-09-2023 15:04:41 (UTC)
  • 22-09-2023 17:04:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6760, 13.1910 at 15 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.

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 5 667 667
Cittareale RI 7 482 1149
Amatrice RI 10 2657 3806
Arquata del Tronto AP 14 1178 4984
Cascia PG 15 3217 8201
Norcia PG 15 4957 13158
Montereale AQ 17 2581 15739
Posta RI 19 694 16433
Borbona RI 19 617 17050
Capitignano AQ 20 665 17715
Campotosto AQ 20 542 18257
Monteleone di Spoleto PG 20 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km NW of L'Aquila (69753 inhabitants)
42 Km W of Teramo (54892 inhabitants)
46 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
93 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 1.2 2023-09-22
15:04:41
42.6762 13.1908 15 2023-09-22
15:15:32
Sala Sismica INGV-Roma 121364241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-22 15:04:41 ± 0.14
Latitude 42.6762 ± 0.0054
Longitude 13.1908 ± 0.0049
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 121364241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 628
Semi-minor axis of confidence ellipse (meter) 144
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 354
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
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) 0.11511
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 121364241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-22 15:15:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HNZ. 2023-09-22T15:04:52.77 0.6 undecidable manual S 100 34.2435 101 -0.01 49
IV.GAVE.EHZ. 2023-09-22T15:04:50.29 0.6 undecidable manual S 274 24.2535 109 0.08 49
IV.RM33.EHZ. 2023-09-22T15:04:48.62 0.6 undecidable manual S 174 18.6702 117 -0.2 48
IV.NRCA.HHZ. 2023-09-22T15:04:48.67 0.6 undecidable manual S 340 18.5703 117 -0.12 49
IV.LNSS.HHZ. 2023-09-22T15:04:47.62 0.6 undecidable manual S 237 14.7741 126 -0.31 47
IV.SMA1.EHZ. 2023-09-22T15:04:47.62 0.6 undecidable manual S 113 12.7761 131 0.09 50
IV.TERO.HNZ. 2023-09-22T15:04:47.94 0.3 undecidable manual P 100 34.2435 101 0.1 71
7F.SIB2.EHZ. 2023-09-22T15:04:46.18 0.1 undecidable manual P 21 25.5522 107 -0.36 92
IV.GAVE.EHZ. 2023-09-22T15:04:46.48 0.3 positive manual P 274 24.2535 109 0.13 73
IV.RM33.EHZ. 2023-09-22T15:04:45.46 1.0 undecidable manual P 174 18.6702 117 -0.09 25
IV.NRCA.HHZ. 2023-09-22T15:04:45.72 0.1 negative manual P 340 18.5703 117 0.18 97
IV.LNSS.HHZ. 2023-09-22T15:04:45.10 0.1 positive manual P 237 14.7741 126 0.07 100
IV.SMA1.EHZ. 2023-09-22T15:04:45.18 0.6 negative manual P 113 12.7761 131 0.38 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.1 0.00010248552 0.2816 AML other m 2023-09-22T15:04:47.69
IV.SMA1.EHE. ML:1.5 0.000266 0.28 AML other m 2023-09-22T15:04:48.20
IV.SMA1.EHN. ML:1.3 0.00015900000000000002 1.62 AML other m 2023-09-22T15:04:48.12
IV.LNSS.HHN. ML:0.9 0.00006166076 0.1024 AML other m 2023-09-22T15:04:47.90
IV.NRCA.HHE. ML:1.2 0.00011949999999999999 0.12 AML other m 2023-09-22T15:04:48.86
IV.NRCA.HHN. ML:1.4 0.000152 0.1 AML other m 2023-09-22T15:04:49.38
IV.GAVE.EHN. ML:1.0 0.00005995 0.26 AML other m 2023-09-22T15:04:50.38
IV.GAVE.EHE. ML:1.0 0.000053365204999999996 0.1152 AML other m 2023-09-22T15:04:50.76
IV.LNSS.HNE. ML:1.1 0.00010354640000000002 0.32 AML other m 2023-09-22T15:04:49.34
IV.LNSS.HNN. ML:1.2 0.00012954094999999998 0.6016 AML other m 2023-09-22T15:04:54.66
IV.RM33.HNE. ML:1.1 0.00008277876000000001 0.6528 AML other m 2023-09-22T15:04:49.11
IV.RM33.HNN. ML:1.1 0.00009035309 0.5376 AML other m 2023-09-22T15:04:49.27
IV.RM33.EHE. ML:0.6 0.000031192209999999997 0.1024 AML other m 2023-09-22T15:04:48.93
IV.RM33.EHN. ML:0.7 0.000032883200000000004 0.0896 AML other m 2023-09-22T15:04:49.11
IV.NRCA.HNE. ML:1.2 0.000118527946 0.1024 AML other m 2023-09-22T15:04:48.81
IV.NRCA.HNN. ML:1.4 0.0001817463855 0.7936 AML other m 2023-09-22T15:04:55.09
IV.GAVE.HNE. ML:1.4 0.0001313703 0.384 AML other m 2023-09-22T15:04:52.83
IV.GAVE.HNN. ML:1.4 0.00013554810000000002 0.7808 AML other m 2023-09-22T15:04:46.18
IV.TERO.HHE. ML:1.0 0.000035176849999999995 0.064 AML other m 2023-09-22T15:04:53.75
IV.TERO.HHN. ML:0.8 0.000024180975 0.064 AML other m 2023-09-22T15:04:53.63
IV.TERO.HNE. ML:1.1 0.00004439241 0.512 AML other m 2023-09-22T15:04:53.29
IV.TERO.HNN. ML:1.5 0.00012950935 0.96 AML other m 2023-09-22T15:04:52.30
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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