Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 28-11-2023 and time 09:21:43 (UTC) in region 3 km SW Amatrice (RI)

A magnitude ML 1.3 earthquake occured in region: 3 km SW Amatrice (RI), on

  • 28-11-2023 09:21:43 (UTC)
  • 28-11-2023 10:21:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.6080, 13.2710 at 11 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 3 2657 2657
Cittareale RI 9 482 3139
Montereale AQ 9 2581 5720
Campotosto AQ 10 542 6262
Capitignano AQ 10 665 6927
Accumoli RI 10 667 7594
Borbona RI 15 617 8211
Cagnano Amiterno AQ 17 1369 9580
Posta RI 17 694 10274
Barete AQ 17 737 11011
Crognaleto TE 18 1297 12308
Arquata del Tronto AP 19 1178 13486
Pizzoli AQ 19 4326 17812
Cortino TE 20 656 18468

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of L'Aquila (69753 inhabitants)
36 Km W of Teramo (54892 inhabitants)
51 Km E of Terni (111501 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
73 Km W of Montesilvano (53738 inhabitants)
79 Km W of Pescara (121014 inhabitants)
79 Km W of Chieti (51815 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
91 Km SE of Perugia (166134 inhabitants)
98 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 1.3 2023-11-28
09:21:43		 42.6077 13.2713 11 2023-11-28
09:40:19		 Sala Sismica INGV-Roma 123522211
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-11-28 09:21:43 ± 0.09
Latitude 42.6077 ± 0.0054
Longitude 13.2713 ± 0.0086
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123522211

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 625
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.05216
Epicentral distance of station farthest from the epicenter (degree) 0.47035
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 123522211
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-11-28 09:40:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHN. 2023-11-28T09:21:59.34 0.3 undecidable manual S 20 44.9217 50 0.98 53
IV.GIGS.HHZ. 2023-11-28T09:21:53.99 0.3 undecidable manual S 125 30.0477 50 -0.41 67
IV.NRCA.HHZ. 2023-11-28T09:21:53.52 0.3 undecidable manual S 333 28.1496 50 -0.38 67
IV.VCEL.EHE. 2023-11-28T09:21:53.99 0.1 undecidable manual P 117 52.2033 50 0.62 81
IV.MF5.EHN. 2023-11-28T09:21:52.76 0.3 undecidable manual P 20 44.9217 50 0.52 64
IV.MTRA.EHZ. 2023-11-28T09:21:51.07 0.3 undecidable manual S 32 19.4694 50 -0.5 66
IV.LNSS.HHZ. 2023-11-28T09:21:51.31 0.3 undecidable manual S 268 18.87 120 -0.11 73
IV.FIAM.HNZ. 2023-11-28T09:21:51.36 0.3 undecidable manual P 199 39.7269 50 -0.09 70
7F.SIB2.EHE. 2023-11-28T09:21:50.01 0.1 undecidable manual P 5 31.5462 50 -0.17 93
IV.RM33.EHZ. 2023-11-28T09:21:49.43 0.3 undecidable manual S 203 11.877 132 -0.02 75
IV.GIGS.HHZ. 2023-11-28T09:21:49.68 0.1 undecidable manual P 125 30.0477 50 -0.27 92
IV.NRCA.HHZ. 2023-11-28T09:21:49.61 0.1 undecidable manual P 333 28.1496 50 -0.05 96
IV.TERO.HHZ. 2023-11-28T09:21:49.23 0.1 undecidable manual P 86 27.2505 50 -0.28 92
IV.MTRA.EHZ. 2023-11-28T09:21:48.12 0.1 undecidable manual P 32 19.4694 50 -0.2 95
IV.LNSS.HHZ. 2023-11-28T09:21:48.30 0.1 undecidable manual P 268 18.87 120 0.07 98
IV.SMA1.EHZ. 2023-11-28T09:21:48.23 0.3 undecidable manual S 64 5.7942 152 0.1 75
IV.CAMP.HHZ. 2023-11-28T09:21:47.37 0.1 undecidable manual P 125 13.7751 128 -0.01 100
IV.RM33.EHZ. 2023-11-28T09:21:47.27 0.1 undecidable manual P 203 11.877 132 0.18 97
IV.SMA1.EHZ. 2023-11-28T09:21:46.62 0.1 undecidable manual P 64 5.7942 152 0.29 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.1 0.002066688 0.224 AML other m 2023-11-28T09:21:48.53
IV.SMA1.EHN. ML:1.7 0.0007130000000000001 0.12 AML other m 2023-11-28T09:21:48.73
IV.RM33.EHN. ML:1.3 0.00022026705000000003 0.16 AML other m 2023-11-28T09:21:50.56
IV.RM33.EHE. ML:1.7 0.0005405 0.14 AML other m 2023-11-28T09:21:49.97
IV.MTRA.EHE. ML:1.4 0.0002109283 0.1024 AML other m 2023-11-28T09:21:51.13
IV.LNSS.HHE. ML:1.4 0.00017841565 0.2048 AML other m 2023-11-28T09:21:51.63
IV.LNSS.HHN. ML:1.3 0.00014985717999999997 0.2624 AML other m 2023-11-28T09:21:51.60
IV.MTRA.EHN. ML:1.2 0.00012873155 0.096 AML other m 2023-11-28T09:21:51.12
IV.NRCA.HHN. ML:1.2 0.00008992638 0.1024 AML other m 2023-11-28T09:21:53.97
IV.NRCA.HHE. ML:1.4 0.00012021765 0.1152 AML other m 2023-11-28T09:21:53.88
IV.RM33.HNE. ML:1.7 0.0005562970000000001 0.128 AML other m 2023-11-28T09:21:49.96
IV.RM33.HNN. ML:1.3 0.00023283105 0.192 AML other m 2023-11-28T09:21:49.63
IV.CAMP.HHE. ML:0.7 0.000044978767 0.1792 AML other m 2023-11-28T09:21:49.88
IV.CAMP.HHN. ML:0.9 0.000072999985 0.48 AML other m 2023-11-28T09:21:53.86
IV.MTRA.HNE. ML:1.4 0.0002078665 0.0896 AML other m 2023-11-28T09:21:51.08
IV.MTRA.HNN. ML:1.2 0.000112755345 0.096 AML other m 2023-11-28T09:21:51.12
IV.LNSS.HNE. ML:1.4 0.0002003445 0.224 AML other m 2023-11-28T09:21:51.63
IV.LNSS.HNN. ML:1.5 0.00022361285 0.6144 AML other m 2023-11-28T09:21:55.16
IV.TERO.HHE. ML:1.2 0.00009349994999999999 0.0576 AML other m 2023-11-28T09:21:53.22
IV.TERO.HHN. ML:0.0 0.0000033609340000000004 0.5248 AML other m 2023-11-28T09:21:56.33
IV.TERO.HNE. ML:1.2 0.000093806385 0.6336 AML other m 2023-11-28T09:22:01.87
IV.TERO.HNN. ML:1.3 0.000097515285 0.1472 AML other m 2023-11-28T09:21:53.40
IV.NRCA.HNE. ML:1.4 0.000119971895 0.128 AML other m 2023-11-28T09:21:53.88
IV.NRCA.HNN. ML:1.5 0.00016637108000000002 0.832 AML other m 2023-11-28T09:22:02.54
IV.GIGS.HHE. ML:1.2 0.00007006387999999999 3.0016 AML other m 2023-11-28T09:21:50.50
IV.GIGS.HHN. ML:1.0 0.000052383675 2.0992 AML other m 2023-11-28T09:21:50.51
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