Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 24-03-2022 and time 08:38:28 (Italy) in region 4 km NW Accumoli (RI)

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

  • 24-03-2022 07:38:28 (UTC)
  • 24-03-2022 08:38:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7210, 13.2070 at 11 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 4 667 667
Arquata del Tronto AP 9 1178 1845
Cittareale RI 12 482 2327
Amatrice RI 12 2657 4984
Norcia PG 12 4957 9941
Cascia PG 16 3217 13158
Montegallo AP 17 523 13681
Acquasanta Terme AP 18 2916 16597
Castelsantangelo sul Nera MC 20 281 16878

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km W of Teramo (54892 inhabitants)
44 Km NW of L'Aquila (69753 inhabitants)
49 Km SE of Foligno (57155 inhabitants)
49 Km E of Terni (111501 inhabitants)
79 Km SE of Perugia (166134 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
89 Km W of Chieti (51815 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
96 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 2022-03-24
07:38:28		 42.7212 13.207 11 2022-07-08
12:33:38		 Bollettino Sismico Italiano INGV 102562231
Reviewed
Rev100 		ML 1.4 2022-03-24
07:38:28		 42.7118 13.236 2 2022-03-24
08:28:32		 Sala Sismica INGV-Roma 102318311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-03-24 07:38:28 ± 0.06
Latitude 42.7212 ± 0.0027
Longitude 13.2070 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102562231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 124
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 267
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.13040
Epicentral distance of station farthest from the epicenter (degree) 0.30757
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 102562231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-30 07:17:03

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 102318311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-03-24 08:28:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2022-03-24T07:38:39.44 0.3 undecidable manual S 108 34.1436 50 -0.33 68
7F.SIB1.EHE. 2022-03-24T07:38:36.00 0.3 undecidable manual S 15 19.9689 50 0.03 74
IV.MMO1.EHZ. 2022-03-24T07:38:36.59 0.3 undecidable manual S 26 22.0668 50 0.05 74
IV.RM33.EHZ. 2022-03-24T07:38:36.72 0.3 undecidable manual S 178 23.5542 50 -0.21 71
IV.MC2.EHZ. 2022-03-24T07:38:36.29 0.1 undecidable manual S 356 21.1677 50 -0.01 98
7F.SIB3.EHN. 2022-03-24T07:38:35.21 0.6 undecidable manual S 17 17.871 50 -0.2 48
IV.LNSS.HHZ. 2022-03-24T07:38:35.36 0.1 undecidable manual S 226 18.87 50 -0.33 93
IV.TERO.HHZ. 2022-03-24T07:38:34.99 0.3 undecidable manual P 108 34.1436 50 0.13 71
IV.NRCA.HHZ. 2022-03-24T07:38:34.34 0.1 undecidable manual S 329 14.5743 127 -0.14 98
IV.MTRA.EHE. 2022-03-24T07:38:34.44 0.6 undecidable manual S 76 15.9729 124 -0.43 46
IV.SMA1.EHZ. 2022-03-24T07:38:34.40 0.1 undecidable manual S 134 14.4744 127 -0.06 100
IV.MMO1.EHZ. 2022-03-24T07:38:33.00 0.1 undecidable manual P 26 22.0668 50 0 99
IV.RM33.EHZ. 2022-03-24T07:38:33.30 0.3 undecidable manual P 178 23.5542 50 0.08 73
IV.SMA1.EHZ. 2022-03-24T07:38:32.46 0.1 undecidable manual P 134 14.4744 127 0.66 83
7F.SIB3.EHN. 2022-03-24T07:38:32.34 0.3 undecidable manual P 17 17.871 50 -0.01 74
IV.LNSS.HHZ. 2022-03-24T07:38:32.79 0.1 undecidable manual P 226 18.87 50 0.28 94
7F.SIB2.EHE. 2022-03-24T07:38:32.71 0.1 undecidable manual P 23 20.4684 50 -0.04 98
7F.SIB1.EHE. 2022-03-24T07:38:32.76 0.1 undecidable manual P 15 19.9689 50 0.09 98
IV.MC2.EHZ. 2022-03-24T07:38:32.96 0.1 undecidable manual P 356 21.1677 50 0.1 97
IV.MTRA.EHE. 2022-03-24T07:38:32.06 0.1 undecidable manual P 76 15.9729 124 0.03 99
IV.NRCA.HHZ. 2022-03-24T07:38:31.99 0.1 undecidable manual P 329 14.5743 127 0.18 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.000406 0.12 AML other m 2022-03-24T07:38:34.70
IV.NRCA.HHN. ML:1.2 0.00014500000000000003 0.12 AML other m 2022-03-24T07:38:34.74
IV.NRCA.HNE. ML:1.6 0.0003977461 0.1216 AML other m 2022-03-24T07:38:34.64
IV.NRCA.HNN. ML:1.4 0.0002614264 1.1392 AML other m 2022-03-24T07:38:35.96
IV.SMA1.EHE. ML:0.6 0.000037393134999999995 0.4608 AML other m 2022-03-24T07:38:35.18
IV.SMA1.EHN. ML:0.6 0.000034467985 1.4784 AML other m 2022-03-24T07:38:39.82
IV.LNSS.HNN. ML:1.6 0.0002758784 4.4544 AML other m 2022-03-24T07:38:35.29
IV.LNSS.HHE. ML:0.9 0.000053697115000000006 0.1408 AML other m 2022-03-24T07:38:35.92
IV.LNSS.HNE. ML:1.4 0.00017473780700000003 13.3248 AML other m 2022-03-24T07:38:42.87
IV.LNSS.HHN. ML:0.8 0.00004622782 0.1408 AML other m 2022-03-24T07:38:36.77
IV.MC2.EHE. ML:1.2 0.000113517999 19.9808 AML other m 2022-03-24T07:38:44.83
IV.MC2.EHN. ML:0.9 0.00005577208 1.5168 AML other m 2022-03-24T07:38:36.97
IV.RM33.EHN. ML:0.8 0.000039875350000000004 0.2752 AML other m 2022-03-24T07:38:37.06
IV.RM33.HNN. ML:1.4 0.0001702702 1.6768 AML other m 2022-03-24T07:38:38.76
IV.RM33.HNE. ML:1.4 0.0001638029 1.4336 AML other m 2022-03-24T07:38:37.95
IV.RM33.EHE. ML:0.7 0.00003172357 0.5248 AML other m 2022-03-24T07:38:37.46
IV.TERO.HHN. ML:0.8 0.000024762344999999998 1.3184 AML other m 2022-03-24T07:38:36.28
IV.TERO.HHE. ML:0.9 0.000027563570000000003 0.7168 AML other m 2022-03-24T07:38:49.10
IV.TERO.HNE. ML:1.5 0.00012389514 5.8624 AML other m 2022-03-24T07:38:49.96
IV.TERO.HNN. ML:1.6 0.00017855590500000002 2.7648 AML other m 2022-03-24T07:38:50.56
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