Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 01-05-2022 and time 20:10:47 (UTC) in region 4 km SW Amatrice (RI)

A magnitude ML 0.9 earthquake occured in region: 4 km SW Amatrice (RI), on

  • 01-05-2022 20:10:47 (UTC)
  • 01-05-2022 22:10:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6000, 13.2610 at 9 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
Amatrice RI 4 2657 2657
Montereale AQ 8 2581 5238
Cittareale RI 9 482 5720
Capitignano AQ 9 665 6385
Campotosto AQ 10 542 6927
Accumoli RI 11 667 7594
Borbona RI 14 617 8211
Cagnano Amiterno AQ 16 1369 9580
Posta RI 16 694 10274
Barete AQ 17 737 11011
Pizzoli AQ 18 4326 15337
Crognaleto TE 19 1297 16634
Arquata del Tronto AP 20 1178 17812

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of L'Aquila (69753 inhabitants)
37 Km W of Teramo (54892 inhabitants)
50 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Chieti (51815 inhabitants)
80 Km W of Pescara (121014 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
80 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
97 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 0.9 2022-05-01
20:10:47		 42.5998 13.2613 9 2022-05-01
20:22:23		 Sala Sismica INGV-Roma 104043601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-05-01 20:10:47 ± 0.18
Latitude 42.5998 ± 0.0090
Longitude 13.2613 ± 0.0086
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 104043601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 788
Semi-minor axis of confidence ellipse (meter) 736
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 187
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 79
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31566
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 104043601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-05-01 20:22:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.OSSC.HHZ. 2022-05-01T20:11:19.00 3.0 undecidable manual Pg 2.81 0
IV.MURB.HHZ. 2022-05-01T20:11:14.86 3.0 undecidable manual S -2.09 0
IV.SNTG.HHZ. 2022-05-01T20:11:11.79 3.0 undecidable manual S 0.04 0
IV.ARVD.HHZ. 2022-05-01T20:11:02.42 3.0 positive manual P -2.65 0
IV.MC2.EHZ. 2022-05-01T20:10:59.58 0.3 undecidable manual S 350 35.0427 50 0.1 71
IV.TERO.HHZ. 2022-05-01T20:10:57.13 0.3 undecidable manual S 85 28.0497 108 -0.27 70
IV.GIGS.HHZ. 2022-05-01T20:10:57.54 0.3 undecidable manual S 122 30.2475 106 -0.57 64
IV.NRCA.HHZ. 2022-05-01T20:10:56.85 0.3 undecidable manual S 335 28.5492 107 -0.71 61
IV.MC2.EHZ. 2022-05-01T20:10:54.93 0.1 undecidable manual P 350 35.0427 50 0.65 83
IV.LNSS.HHZ. 2022-05-01T20:10:53.99 0.3 undecidable manual S 271 18.0708 116 -0.17 73
IV.GIGS.HHZ. 2022-05-01T20:10:53.29 0.1 undecidable manual P 122 30.2475 106 -0.2 94
IV.NRCA.HHZ. 2022-05-01T20:10:52.75 0.1 undecidable manual P 335 28.5492 107 -0.42 90
IV.RM33.EHZ. 2022-05-01T20:10:52.20 0.3 undecidable manual S 201 10.7781 129 0.17 73
IV.TERO.HHZ. 2022-05-01T20:10:52.92 0.1 undecidable manual P 85 28.0497 108 -0.16 95
IV.SMA1.EHZ. 2022-05-01T20:10:51.71 0.3 undecidable manual S 61 6.8931 142 0.62 66
IV.LNSS.HHZ. 2022-05-01T20:10:51.20 0.1 undecidable manual P 271 18.0708 116 -0.01 100
IV.SMA1.EHZ. 2022-05-01T20:10:50.06 0.1 undecidable manual P 61 6.8931 142 0.62 88
IV.RM33.EHZ. 2022-05-01T20:10:50.32 0.6 undecidable manual P 201 10.7781 129 0.34 47
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.3 0.0003055 0.08 AML other m 2022-05-01T20:10:51.91
IV.SMA1.EHE. ML:1.7 0.000775 1.5 AML other m 2022-05-01T20:10:52.13
IV.RM33.EHE. ML:0.9 0.0000948 0.6 AML other m 2022-05-01T20:10:52.65
IV.RM33.EHN. ML:0.8 0.0000802 0.26 AML other m 2022-05-01T20:10:52.37
IV.LNSS.HHN. ML:0.8 0.00004865 0.44 AML other m 2022-05-01T20:10:54.32
IV.LNSS.HHE. ML:0.8 0.000048899999999999996 1.2 AML other m 2022-05-01T20:10:54.66
IV.NRCA.HHE. ML:0.9 0.000044649999999999994 0.16 AML other m 2022-05-01T20:10:57.01
IV.NRCA.HHN. ML:0.8 0.0000286 0.92 AML other m 2022-05-01T20:10:58.95
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