Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 25-08-2022 and time 01:05:37 (UTC) in region 5 km W Accumoli (RI)

A magnitude ML 1.0 earthquake occured in region: 5 km W Accumoli (RI), on

  • 25-08-2022 01:05:37 (UTC)
  • 25-08-2022 03:05:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6760, 13.1960 at 10 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 5 667 667
Cittareale RI 7 482 1149
Amatrice RI 9 2657 3806
Arquata del Tronto AP 14 1178 4984
Norcia PG 16 4957 9941
Cascia PG 16 3217 13158
Montereale AQ 17 2581 15739
Posta RI 19 694 16433
Borbona RI 19 617 17050
Capitignano AQ 19 665 17715
Campotosto AQ 19 542 18257

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)
47 Km E of Terni (111501 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 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 1.0 2022-08-25
01:05:37		 42.6762 13.196 10 2022-08-25
01:47:06		 Sala Sismica INGV-Roma 108920001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-25 01:05:37 ± 0.06
Latitude 42.6762 ± 0.0027
Longitude 13.1960 ± 0.0049
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108920001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 331
Semi-minor axis of confidence ellipse (meter) 277
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 87
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
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 30
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.16727
Epicentral distance of station farthest from the epicenter (degree) 0.53779
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 108920001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-25 01:47:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2022-08-25T01:05:56.92 0.6 undecidable manual S 313 59.6958 50 0.38 43
IV.MOMA.HHZ. 2022-08-25T01:05:55.03 0.3 undecidable manual S 286 52.9026 50 0.29 67
IV.GUMA.HHZ. 2022-08-25T01:05:53.13 0.6 undecidable manual S 15 44.3223 50 0.68 40
IV.CSP1.EHZ. 2022-08-25T01:05:53.16 0.6 undecidable manual S 1 46.1205 50 0.24 46
IV.CESI.HHZ. 2022-08-25T01:05:52.13 0.3 undecidable manual S 327 43.5231 50 -0.09 71
IV.FIAM.HHZ. 2022-08-25T01:05:52.76 0.6 undecidable manual S 188 45.7209 50 -0.05 47
IV.FDMO.HHZ. 2022-08-25T01:05:51.43 0.3 undecidable manual S 348 40.9257 50 -0.11 71
IV.ARRO.EHZ. 2022-08-25T01:05:50.08 0.3 undecidable manual S 253 36.741 50 -0.33 68
IV.ASSB.HHZ. 2022-08-25T01:05:49.25 0.1 undecidable manual P 313 59.6958 50 0.59 81
IV.TERO.HHZ. 2022-08-25T01:05:49.26 0.3 undecidable manual S 100 33.8439 50 -0.37 68
IV.MC2.EHZ. 2022-08-25T01:05:47.79 0.3 undecidable manual S 359 26.1516 50 0.21 71
IV.MMO1.EHZ. 2022-08-25T01:05:47.49 0.3 undecidable manual S 23 26.9508 50 -0.31 70
IV.MOMA.HHZ. 2022-08-25T01:05:47.74 0.1 undecidable manual P 286 52.9026 50 0.12 92
IV.FIAM.HHZ. 2022-08-25T01:05:46.40 0.1 undecidable manual P 188 45.7209 50 -0.11 94
IV.GAVE.EHZ. 2022-08-25T01:05:46.81 0.3 undecidable manual S 274 24.6531 112 -0.31 70
IV.CSP1.EHZ. 2022-08-25T01:05:46.47 0.1 undecidable manual P 1 46.1205 50 -0.1 94
IV.GUMA.HHZ. 2022-08-25T01:05:46.48 0.1 undecidable manual P 15 44.3223 50 0.18 93
IV.CESI.HHZ. 2022-08-25T01:05:46.01 0.1 undecidable manual P 327 43.5231 50 -0.16 93
IV.CAMP.HHZ. 2022-08-25T01:05:46.65 0.3 undecidable manual S 132 23.3544 113 -0.05 74
IV.FDMO.HHZ. 2022-08-25T01:05:45.58 0.1 undecidable manual P 348 40.9257 50 -0.19 93
IV.RM33.EHZ. 2022-08-25T01:05:45.42 0.3 undecidable manual S 175 18.5703 118 0.21 72
IV.TERO.HHZ. 2022-08-25T01:05:44.59 0.1 undecidable manual P 100 33.8439 50 -0.08 96
IV.ARRO.EHZ. 2022-08-25T01:05:44.92 0.1 undecidable manual P 253 36.741 50 -0.2 93
IV.NRCA.HHZ. 2022-08-25T01:05:44.94 0.3 undecidable manual S 339 18.6702 118 -0.3 71
IV.CAMP.HHZ. 2022-08-25T01:05:43.09 0.1 undecidable manual P 132 23.3544 113 0.11 97
IV.MC2.EHZ. 2022-08-25T01:05:43.46 0.1 undecidable manual P 359 26.1516 50 -0.03 99
IV.GAVE.EHZ. 2022-08-25T01:05:43.19 0.1 undecidable manual P 274 24.6531 112 -0.03 99
IV.MMO1.EHZ. 2022-08-25T01:05:43.55 0.1 undecidable manual P 23 26.9508 50 -0.07 98
IV.RM33.EHZ. 2022-08-25T01:05:42.44 0.1 undecidable manual P 175 18.5703 118 0.32 94
IV.NRCA.HHZ. 2022-08-25T01:05:42.16 0.1 undecidable manual P 339 18.6702 118 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.5 0.00025 0.16 AML other m 2022-08-25T01:05:45.27
IV.NRCA.HHN. ML:1.5 0.0002735 0.36 AML other m 2022-08-25T01:05:45.69
IV.RM33.EHN. ML:1.1 0.00008855 0.24 AML other m 2022-08-25T01:05:45.73
IV.RM33.EHE. ML:1.1 0.000112 0.6 AML other m 2022-08-25T01:05:46.69
IV.CAMP.HHE. ML:0.8 0.00003755 0.3 AML other m 2022-08-25T01:05:46.80
IV.CAMP.HHN. ML:0.8 0.0000388 1.62 AML other m 2022-08-25T01:05:47.02
IV.MMO1.EHE. ML:1.0 0.000053649999999999996 1.28 AML other m 2022-08-25T01:05:48.08
IV.MMO1.EHN. ML:0.9 0.000039750000000000004 1.54 AML other m 2022-08-25T01:05:48.15
IV.FDMO.HHN. ML:0.6 0.00001645 0.36 AML other m 2022-08-25T01:05:52.03
IV.CESI.HHN. ML:1.0 0.0000308 0.44 AML other m 2022-08-25T01:05:52.65
IV.FDMO.HHE. ML:0.8 0.000019200000000000003 0.48 AML other m 2022-08-25T01:05:54.27
IV.CESI.HHE. ML:0.9 0.0000226 0.54 AML other m 2022-08-25T01:05:54.36
IV.MOMA.HHE. ML:1.0 0.000027 1.42 AML other m 2022-08-25T01:05:56.27
IV.MOMA.HHN. ML:0.9 0.00002035 0.94 AML other m 2022-08-25T01:05:56.16
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