Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 16-08-2022 and time 03:51:26 (UTC) in region 1 km NE Accumoli (RI)

A magnitude ML 0.6 earthquake occured in region: 1 km NE Accumoli (RI), on

  • 16-08-2022 03:51:26 (UTC)
  • 16-08-2022 05:51:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7020, 13.2630 at 10 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 1 667 667
Amatrice RI 8 2657 3324
Arquata del Tronto AP 9 1178 4502
Cittareale RI 13 482 4984
Acquasanta Terme AP 14 2916 7900
Montegallo AP 17 523 8423
Norcia PG 17 4957 13380
Campotosto AQ 18 542 13922
Valle Castellana TE 20 977 14899
Montereale AQ 20 2581 17480

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km W of Teramo (54892 inhabitants)
41 Km N of L'Aquila (69753 inhabitants)
53 Km E of Terni (111501 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
76 Km W of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
84 Km W of Chieti (51815 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
100 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 0.6 2022-08-16
03:51:26		 42.7018 13.2628 10 2023-01-31
19:03:47		 Bollettino Sismico Italiano INGV 109964381
Reviewed
Rev100 		ML 1.0 2022-08-16
03:51:26		 42.7077 13.2728 11 2022-08-16
03:59:14		 Sala Sismica INGV-Roma 108600981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-16 03:51:26 ± 0.05
Latitude 42.7018 ± 0.0027
Longitude 13.2628 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 109964381

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 303
Semi-minor axis of confidence ellipse (meter) 205
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
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) 78
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51891
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 109964381
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-09-21 14:51:54

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 108600981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-16 03:59:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SAMA.EHZ. 2022-08-16T03:51:56.38 3.0 undecidable manual S -1.34 0
IV.CSP1.EHZ. 2022-08-16T03:51:40.81 0.6 undecidable manual S 354 43.5231 50 0.1 48
IV.TERO.HHZ. 2022-08-16T03:51:37.24 0.3 undecidable manual S 107 29.1486 50 0.36 70
IV.GAVE.EHN. 2022-08-16T03:51:37.03 0.6 undecidable manual S 268 30.0477 50 -0.1 49
IV.MOMA.HNZ. 2022-08-16T03:51:36.97 0.1 undecidable manual P 282 57.5979 50 0.17 92
IV.MC2.EHZ. 2022-08-16T03:51:35.22 0.3 undecidable manual S 346 23.9538 112 -0.09 74
IV.RM33.EHZ. 2022-08-16T03:51:34.95 1.0 undecidable manual S 190 21.7671 114 0.35 24
7F.SIB2.EHZ. 2022-08-16T03:51:34.15 0.6 undecidable manual S 9 21.2676 115 -0.28 48
IV.CAMP.HHZ. 2022-08-16T03:51:34.72 0.6 undecidable manual S 147 21.9669 114 0.06 50
IV.MMO1.EHZ. 2022-08-16T03:51:34.68 0.6 undecidable manual S 13 22.4553 113 -0.16 49
IV.CSP1.EHZ. 2022-08-16T03:51:34.42 0.1 undecidable manual P 354 43.5231 50 -0.22 93
7F.SIB1.EHZ. 2022-08-16T03:51:34.68 0.6 undecidable manual S 2 21.3675 114 0.2 49
IV.NRCA.HHZ. 2022-08-16T03:51:33.84 0.3 undecidable manual S 320 18.9699 117 0.12 74
7F.SIB3.EHZ. 2022-08-16T03:51:33.64 0.6 undecidable manual S 2 19.2696 117 -0.16 49
IV.TERO.HHZ. 2022-08-16T03:51:32.25 0.1 undecidable manual P 107 29.1486 50 -0.17 96
IV.GAVE.EHN. 2022-08-16T03:51:32.34 0.6 undecidable manual P 268 30.0477 50 -0.23 48
IV.MC2.EHZ. 2022-08-16T03:51:31.62 0.3 undecidable manual P 346 23.9538 112 0.1 74
7F.SIB1.EHZ. 2022-08-16T03:51:31.19 0.1 undecidable manual P 2 21.3675 114 0.15 98
IV.RM33.EHZ. 2022-08-16T03:51:31.02 0.1 undecidable manual P 190 21.7671 114 -0.09 99
IV.MTRA.HNZ. 2022-08-16T03:51:31.83 0.6 undecidable manual S 61 12.4764 128 0.02 51
IV.MMO1.EHZ. 2022-08-16T03:51:31.29 0.1 undecidable manual P 13 22.4553 113 0.05 100
IV.NRCA.HHZ. 2022-08-16T03:51:30.82 0.1 undecidable manual P 320 18.9699 117 0.22 97
7F.SIB2.EHZ. 2022-08-16T03:51:30.93 0.1 undecidable manual P 9 21.2676 115 -0.08 100
7F.SIB3.EHZ. 2022-08-16T03:51:30.52 0.1 undecidable manual P 2 19.2696 117 -0.12 99
IV.CAMP.HHZ. 2022-08-16T03:51:30.84 0.1 undecidable manual P 147 21.9669 114 -0.3 95
IV.MTRA.HNZ. 2022-08-16T03:51:29.70 0.1 undecidable manual P 61 12.4764 128 0.2 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:0.5 0.000021047955 2.0768 AML other m 2022-08-16T03:51:35.50
IV.RM33.EHN. ML:0.7 0.000033494994999999997 1.6416 AML other m 2022-08-16T03:51:35.32
IV.MMO1.EHE. ML:0.7 0.0000304430455 1.52 AML other m 2022-08-16T03:51:35.66
IV.MMO1.EHN. ML:0.7 0.000028908399999999996 0.4 AML other m 2022-08-16T03:51:35.09
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