Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 11-04-2024 and time 21:05:49 (Italy) in region 4 km SE Amatrice (RI)

A magnitude ML 0.8 earthquake occured in region: 4 km SE Amatrice (RI), on

  • 11-04-2024 19:05:49 (UTC)
  • 11-04-2024 21:05:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6090, 13.3290 at 14 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
Campotosto AQ 7 542 3199
Capitignano AQ 10 665 3864
Montereale AQ 12 2581 6445
Accumoli RI 12 667 7112
Cittareale RI 14 482 7594
Crognaleto TE 14 1297 8891
Cortino TE 15 656 9547
Barete AQ 18 737 10284
Fano Adriano TE 18 296 10580
Rocca Santa Maria TE 18 537 11117
Arquata del Tronto AP 19 1178 12295
Cagnano Amiterno AQ 19 1369 13664
Acquasanta Terme AP 19 2916 16580
Borbona RI 19 617 17197
Pizzoli AQ 19 4326 21523
Valle Castellana TE 20 977 22500

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km N of L'Aquila (69753 inhabitants)
31 Km W of Teramo (54892 inhabitants)
56 Km E of Terni (111501 inhabitants)
64 Km SE of Foligno (57155 inhabitants)
68 Km W of Montesilvano (53738 inhabitants)
74 Km W of Pescara (121014 inhabitants)
75 Km W of Chieti (51815 inhabitants)
84 Km NE of Guidonia Montecelio (88673 inhabitants)
84 Km NE of Tivoli (56533 inhabitants)
95 Km SE of Perugia (166134 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 0.8 2024-04-11
19:05:49		 42.6088 13.3288 14 2024-04-11
19:11:13		 Sala Sismica INGV-Roma 126654181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-11 19:05:49 ± 0.07
Latitude 42.6088 ± 0.0036
Longitude 13.3288 ± 0.0049
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126654181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 135
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
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 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.02248
Epicentral distance of station farthest from the epicenter (degree) 0.27429
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 126654181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-11 19:11:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2024-04-11T19:06:00.15 0.6 undecidable manual S 325 30.4473 100 -0.17 48
IV.LNSS.HHZ. 2024-04-11T19:05:58.42 0.6 undecidable manual S 268 23.5542 105 -0.1 49
IV.GIGS.HHZ. 2024-04-11T19:05:58.99 0.6 undecidable manual S 131 26.3514 102 -0.26 47
IV.TERO.HHZ. 2024-04-11T19:05:58.06 0.6 undecidable manual S 86 22.4553 106 -0.18 48
IV.MTRA.HNZ. 2024-04-11T19:05:56.76 0.6 undecidable manual S 19 17.2716 115 -0.18 49
IV.RM33.EHZ. 2024-04-11T19:05:56.01 0.3 undecidable manual S 220 14.4744 121 -0.27 72
IV.NRCA.HHZ. 2024-04-11T19:05:55.87 0.3 positive manual P 325 30.4473 100 0.05 73
IV.GIGS.HHZ. 2024-04-11T19:05:55.33 0.6 undecidable manual P 131 26.3514 102 0.13 49
IV.CAMP.HHZ. 2024-04-11T19:05:55.24 0.6 undecidable manual S 141 10.3785 134 -0.17 49
IV.TERO.HHZ. 2024-04-11T19:05:54.69 0.6 positive manual P 86 22.4553 106 0.07 49
IV.SMA1.EHZ. 2024-04-11T19:05:54.35 0.6 undecidable manual S 12 2.4975 168 -0.02 51
IV.LNSS.HHZ. 2024-04-11T19:05:54.83 1.0 undecidable manual P 268 23.5542 105 0.05 25
IV.RM33.EHZ. 2024-04-11T19:05:53.60 0.1 undecidable manual P 220 14.4744 121 0.12 99
IV.CAMP.HHZ. 2024-04-11T19:05:53.21 0.3 undecidable manual P 141 10.3785 134 0.23 73
IV.MTRA.HNZ. 2024-04-11T19:05:53.91 0.1 undecidable manual P 19 17.2716 115 0.04 100
IV.SMA1.EHZ. 2024-04-11T19:05:52.57 0.1 undecidable manual P 12 2.4975 168 0.19 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:0.6 0.00004405000000000001 1.54 AML other m 2024-04-11T19:05:54.77
IV.SMA1.EHE. ML:0.6 0.0000504 0.08 AML other m 2024-04-11T19:05:54.78
IV.NRCA.HHN. ML:0.8 0.00003204999999999999 0.08 AML other m 2024-04-11T19:06:00.48
IV.NRCA.HHE. ML:1.0 0.000050900000000000004 0.12 AML other m 2024-04-11T19:06:00.55
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