Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 21-06-2022 and time 16:36:09 (UTC) in region 5 km SW Accumoli (RI)

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

  • 21-06-2022 16:36:09 (UTC)
  • 21-06-2022 18:36:09 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6540, 13.2150 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 6 482 1149
Amatrice RI 7 2657 3806
Montereale AQ 15 2581 6387
Arquata del Tronto AP 15 1178 7565
Capitignano AQ 16 665 8230
Campotosto AQ 17 542 8772
Borbona RI 17 617 9389
Posta RI 17 694 10083
Cascia PG 18 3217 13300
Norcia PG 18 4957 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
40 Km W of Teramo (54892 inhabitants)
48 Km E of Terni (111501 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
83 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
84 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 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
Reviewed
Rev100 		ML 1.2 2022-06-21
16:36:09		 42.6537 13.2148 10 2022-06-21
17:29:02		 Sala Sismica INGV-Roma 106334351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-06-21 16:36:09 ± 0.04
Latitude 42.6537 ± 0.0018
Longitude 13.2148 ± 0.0037
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 106334351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 231
Semi-minor axis of confidence ellipse (meter) 216
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 271
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28778
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 106334351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-06-21 17:29:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SAMA.EHZ. 2022-06-21T16:36:24.86 3.0 undecidable manual P -0.32 0
IV.ARVD.HHZ. 2022-06-21T16:36:23.55 3.0 negative manual P -0.14 0
7F.SIB3.EHZ. 2022-06-21T16:36:18.44 1.0 undecidable manual S 10 24.9528 50 -0.11 24
IV.CSP1.EHZ. 2022-06-21T16:36:18.44 3.0 negative manual P 0.67 0
IV.NRCA.HHZ. 2022-06-21T16:36:17.34 0.6 undecidable manual S 338 21.5673 116 -0.24 48
IV.GIGS.HHZ. 2022-06-21T16:36:16.26 3.0 undecidable manual Pg 0.47 0
IV.MTRA.EHZ. 2022-06-21T16:36:16.62 0.6 undecidable manual S 52 18.6702 119 -0.08 50
IV.ARRO.EHZ. 2022-06-21T16:36:16.44 3.0 negative manual P 0.24 0
IV.MMO1.EHZ. 2022-06-21T16:36:15.22 1.0 undecidable manual P 18 28.749 50 0.01 25
7F.SIB1.EHZ. 2022-06-21T16:36:15.16 1.0 undecidable manual P 10 27.1506 50 0.2 24
IV.LNSS.HHZ. 2022-06-21T16:36:15.71 0.6 undecidable manual S 248 15.2736 124 0.02 51
IV.RM33.EHZ. 2022-06-21T16:36:15.80 0.3 undecidable manual S 180 16.0728 123 -0.1 74
IV.MC2.EHZ. 2022-06-21T16:36:15.38 0.6 positive manual P 356 28.6491 50 0.18 48
IV.TERO.HHZ. 2022-06-21T16:36:15.54 0.6 undecidable manual P 96 31.9458 50 -0.17 48
IV.GAVE.EHZ. 2022-06-21T16:36:14.78 0.1 positive manual P 279 26.4513 50 -0.08 98
7F.SIB3.EHZ. 2022-06-21T16:36:14.74 1.0 undecidable manual P 10 24.9528 50 0.11 24
IV.NRCA.HHZ. 2022-06-21T16:36:14.09 0.1 positive manual P 338 21.5673 116 0.02 100
7F.SIB2.EHZ. 2022-06-21T16:36:14.95 0.6 undecidable manual P 15 27.3504 50 -0.04 49
IV.RM33.EHZ. 2022-06-21T16:36:13.15 0.6 positive manual P 180 16.0728 123 0.05 50
IV.MTRA.EHZ. 2022-06-21T16:36:13.68 0.1 positive manual P 52 18.6702 119 0.12 98
IV.LNSS.HHZ. 2022-06-21T16:36:13.12 0.3 undecidable manual P 248 15.2736 124 0.14 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.HNN. ML:1.5 0.00029141625 0.1792 AML other m 2022-06-21T16:36:15.98
IV.RM33.EHN. ML:1.5 0.0002658067 0.1792 AML other m 2022-06-21T16:36:15.99
IV.RM33.EHE. ML:1.7 0.00043164619999999995 0.1408 AML other m 2022-06-21T16:36:16.16
IV.RM33.HNE. ML:1.7 0.000453 0.14 AML other m 2022-06-21T16:36:16.15
IV.NRCA.HHE. ML:1.4 0.0001555 0.2 AML other m 2022-06-21T16:36:17.78
IV.NRCA.HHN. ML:1.3 0.0001265 1.36 AML other m 2022-06-21T16:36:18.06
IV.GAVE.EHN. ML:1.3 0.000103689655 0.1408 AML other m 2022-06-21T16:36:18.98
IV.GAVE.EHE. ML:1.2 0.00009484999999999999 1.2 AML other m 2022-06-21T16:36:19.86
IV.MMO1.EHE. ML:1.0 0.00005195 1.46 AML other m 2022-06-21T16:36:20.04
IV.MMO1.EHN. ML:1.0 0.0000507 1.5 AML other m 2022-06-21T16:36:20.97
IV.GIGS.HHE. ML:0.6 0.00001565 0.3 AML other m 2022-06-21T16:36:21.39
IV.GIGS.HHN. ML:0.6 0.000016 0.16 AML other m 2022-06-21T16:36:21.52
IV.ARRO.EHE. ML:0.9 0.0000293 1.28 AML other m 2022-06-21T16:36:24.98
IV.ARRO.EHN. ML:1.0 0.00003375 0.18 AML other m 2022-06-21T16:36:37.14
IV.MTRA.EHE. ML:1.2 0.00011747025 0.1408 AML other m 2022-06-21T16:36:16.95
IV.MTRA.EHN. ML:1.1 0.00010356299999999998 0.1152 AML other m 2022-06-21T16:36:16.71
IV.MTRA.HNE. ML:1.3 0.0001629416 0.2432 AML other m 2022-06-21T16:36:16.66
IV.MTRA.HNN. ML:1.1 0.00010636999999999999 0.1024 AML other m 2022-06-21T16:36:16.66
IV.NRCA.HNE. ML:1.4 0.00015846064999999998 0.832 AML other m 2022-06-21T16:36:17.37
IV.NRCA.HNN. ML:1.1 0.000091688425 0.2816 AML other m 2022-06-21T16:36:17.51
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