Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 11-08-2022 and time 16:32:52 (UTC) in region 4 km SW Accumoli (RI)

A magnitude ML 1.2 earthquake occured in region: 4 km SW Accumoli (RI), on

  • 11-08-2022 16:32:52 (UTC)
  • 11-08-2022 18:32:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6620, 13.2180 at 9 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 5 667 667
Cittareale RI 7 482 1149
Amatrice RI 7 2657 3806
Arquata del Tronto AP 14 1178 4984
Montereale AQ 16 2581 7565
Campotosto AQ 17 542 8107
Capitignano AQ 17 665 8772
Norcia PG 18 4957 13729
Cascia PG 18 3217 16946
Borbona RI 18 617 17563
Posta RI 18 694 18257
Acquasanta Terme AP 20 2916 21173

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
85 Km W of Pescara (121014 inhabitants)
85 Km NE of Tivoli (56533 inhabitants)
85 Km W of Chieti (51815 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
Bulletin
Rev1000 		ML 1.2 2022-08-11
16:32:52		 42.6625 13.2177 9 2023-01-31
19:03:58		 Bollettino Sismico Italiano INGV 113453801
Reviewed
Rev100 		ML 1.3 2022-08-11
16:32:52		 42.6532 13.1973 11 2022-08-11
16:41:39		 Sala Sismica INGV-Roma 108416011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-11 16:32:52 ± 0.07
Latitude 42.6625 ± 0.0045
Longitude 13.2177 ± 0.0098
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 113453801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 899
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 240
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42898
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.5
Num. used stations 14
Type of magnitude ML
Reference to an origin 113453801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-01-10 15:20:00

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 108416011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-11 16:41:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRMO.HHZ. 2022-08-11T16:34:16.29 3.0 undecidable manual Sn -2.18 0
OT.OT17.EHZ. 2022-08-11T16:34:13.74 3.0 undecidable manual Sg 7.07 0
IV.ISPIC.EHZ. 2022-08-11T16:34:12.00 3.0 undecidable manual Pg 23.440001 0
IV.MCRV.HHZ. 2022-08-11T16:34:07.38 3.0 undecidable manual Sn 0.77 0
IV.SGG.HNZ. 2022-08-11T16:34:05.04 3.0 undecidable manual Sg 15.78 0
IX.SSB3.HHZ.02 2022-08-11T16:34:03.73 3.0 undecidable manual Sn -2.3 0
IV.CAFE.HHZ. 2022-08-11T16:34:00.62 3.0 undecidable manual Sn -5.8 0
CR.STON.BHZ. 2022-08-11T16:33:57.96 3.0 undecidable manual Pg 14.92 0
IV.MSRU.HHZ. 2022-08-11T16:33:49.81 3.0 undecidable manual Pg 11.53 0
IV.FERC.HHZ.00 2022-08-11T16:33:38.50 3.0 negative manual Pn -3.46 0
IX.NSC3.EHZ.02 2022-08-11T16:33:35.03 3.0 undecidable manual Pg 17.280001 0
IV.ACER.HHZ. 2022-08-11T16:33:34.60 3.0 positive manual Pg 8.35 0
IV.APEC.HHZ. 2022-08-11T16:33:29.30 3.0 undecidable manual Sg 0.92 0
IV.GATE.HHZ. 2022-08-11T16:33:27.32 3.0 negative manual Pg 13.39 0
IV.MCRV.HHZ. 2022-08-11T16:33:27.09 3.0 undecidable manual Pg 8.65 0
IV.BRMO.HHZ. 2022-08-11T16:33:24.54 3.0 positive manual Pn -0.56 0
IV.MRLC.HHZ. 2022-08-11T16:33:23.63 3.0 undecidable manual Pn 1.86 0
IV.VULT.HHZ. 2022-08-11T16:33:22.80 3.0 undecidable manual Pn 0.4 0
IV.OSSC.HHZ. 2022-08-11T16:33:16.74 3.0 undecidable manual Sn 2.89 0
IV.MRB1.HHZ. 2022-08-11T16:33:10.11 3.0 undecidable manual Pn -5.22 0
IV.CSP1.EHZ. 2022-08-11T16:33:08.76 0.6 undecidable manual S 359 47.619 50 0.26 46
IV.FDMO.HHZ. 2022-08-11T16:33:07.46 0.6 undecidable manual S 346 42.8238 50 0.24 46
IV.PTRJ.HHZ. 2022-08-11T16:33:06.47 3.0 undecidable manual Pn -3.8 0
IV.GIGS.HHZ. 2022-08-11T16:33:05.22 0.6 undecidable manual S 129 37.1295 50 -0.49 46
IV.MC2.EHZ. 2022-08-11T16:33:03.29 0.6 undecidable manual S 355 27.75 109 0.2 49
IV.MMO1.EHZ. 2022-08-11T16:33:03.29 0.6 undecidable manual S 19 27.75 109 0.2 50
IV.TERO.HHZ. 2022-08-11T16:33:03.99 0.6 undecidable manual S 98 31.8459 50 -0.3 47
IV.CAMP.HHZ. 2022-08-11T16:33:01.20 0.6 undecidable manual S 132 21.0678 114 0.28 49
IV.CSP1.EHZ. 2022-08-11T16:33:01.89 0.6 negative manual P 359 47.619 50 -0.04 49
IV.QLNO.HHZ. 2022-08-11T16:33:01.79 3.0 undecidable manual Pn 3.84 0
IV.GIGS.HHZ. 2022-08-11T16:33:00.51 0.6 undecidable manual P 129 37.1295 50 0.2 47
IV.FDMO.HHZ. 2022-08-11T16:33:00.99 0.6 undecidable manual P 346 42.8238 50 -0.2 48
IV.NRCA.HHZ. 2022-08-11T16:33:00.46 0.6 undecidable manual S 336 20.7681 114 -0.38 47
IV.RM33.EHZ. 2022-08-11T16:32:59.68 0.3 undecidable manual S 181 17.0718 119 0 77
IV.RDP.HHZ. 2022-08-11T16:32:59.89 3.0 undecidable manual Pg 8.8 0
IV.TERO.HHZ. 2022-08-11T16:32:59.50 0.3 undecidable manual P 98 31.8459 50 0.01 75
IV.MC2.EHZ. 2022-08-11T16:32:58.91 0.3 undecidable manual P 355 27.75 109 0.11 75
IV.MMO1.EHZ. 2022-08-11T16:32:58.91 0.6 positive manual P 19 27.75 109 0.11 50
IV.NRCA.HHZ. 2022-08-11T16:32:57.41 0.1 negative manual P 336 20.7681 114 -0.09 100
IV.CAMP.HHZ. 2022-08-11T16:32:57.66 0.3 undecidable manual P 132 21.0678 114 0.11 76
IV.RM33.EHZ. 2022-08-11T16:32:56.89 0.6 undecidable manual P 181 17.0718 119 0.06 51
IV.FRON.EHZ. 2022-08-11T16:32:55.77 3.0 undecidable manual Pn -3.22 0
IV.CRE.HHZ. 2022-08-11T16:32:55.57 3.0 undecidable manual Pn 1.39 0
IV.SFI.EHZ. 2022-08-11T16:32:52.57 3.0 positive manual Pn -3.95 0
IV.SAMA.EHZ. 2022-08-11T16:32:49.10 3.0 undecidable manual P -0.77 0
IV.RIBO.EHZ.01 2022-08-11T16:32:33.63 3.0 negative manual P -7.69 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.HNE. ML:3.1 0.0072417455000000006 1.168 AML other m 2022-08-11T16:32:59.61
IV.RM33.EHN. ML:1.1 0.000106443215 0.256 AML other m 2022-08-11T16:32:59.83
IV.NRCA.HNN. ML:1.4 0.00019418775 0.6784 AML other m 2022-08-11T16:33:00.19
IV.RM33.EHE. ML:0.9 0.00007424144500000001 0.3968 AML other m 2022-08-11T16:33:00.43
IV.NRCA.HHE. ML:1.6 0.00031130975 0.1792 AML other m 2022-08-11T16:33:00.67
IV.NRCA.HNE. ML:1.6 0.00030349709999999994 0.1664 AML other m 2022-08-11T16:33:00.68
IV.NRCA.HHN. ML:1.4 0.00015948185000000002 0.2048 AML other m 2022-08-11T16:33:00.93
IV.CAMP.HHN. ML:0.4 0.000019574265 0.3488 AML other m 2022-08-11T16:33:04.19
IV.MMO1.EHN. ML:0.8 0.00003697542 0.7168 AML other m 2022-08-11T16:33:06.54
IV.RM33.HNE. ML:1.4 0.00020901745 0.8736 AML other m 2022-08-11T16:33:08.58
IV.MMO1.HNN. ML:3.0 0.0060588745 0.6432 AML other m 2022-08-11T16:33:19.17
IV.CAMP.HHE. ML:0.4 0.000019953245 0.24 AML other m 2022-08-11T16:33:20.30
IV.RM33.HNN. ML:1.3 0.00016051770000000002 1.2864 AML other m 2022-08-11T16:33:28.10
IV.MMO1.EHE. ML:0.8 0.0000342595064 0.8896 AML other m 2022-08-11T16:33:28.56
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