Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 23-07-2024 and time 17:20:10 (UTC) in region 4 km W Amatrice (RI)

A magnitude ML 1.6 earthquake occured in region: 4 km W Amatrice (RI), on

  • 23-07-2024 17:20:10 (UTC)
  • 23-07-2024 19:20:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6300, 13.2430 at 13 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
Cittareale RI 7 482 3139
Accumoli RI 7 667 3806
Montereale AQ 12 2581 6387
Capitignano AQ 13 665 7052
Campotosto AQ 13 542 7594
Borbona RI 16 617 8211
Arquata del Tronto AP 17 1178 9389
Posta RI 17 694 10083
Cagnano Amiterno AQ 19 1369 11452
Barete AQ 20 737 12189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NW of L'Aquila (69753 inhabitants)
38 Km W of Teramo (54892 inhabitants)
49 Km E of Terni (111501 inhabitants)
57 Km SE of Foligno (57155 inhabitants)
75 Km W of Montesilvano (53738 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km W of Pescara (121014 inhabitants)
82 Km W of Chieti (51815 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
88 Km SE of Perugia (166134 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
Reviewed
Rev100 		ML 1.6 2024-07-23
17:20:10		 42.6297 13.2428 13 2024-07-23
17:27:34		 Sala Sismica INGV-Roma 130125031
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-07-23 17:20:10 ± 0.07
Latitude 42.6297 ± 0.0036
Longitude 13.2428 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 130125031

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 354
Semi-minor axis of confidence ellipse (meter) 256
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 334
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37322
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 38
Type of magnitude ML
Reference to an origin 130125031
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-07-23 17:27:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2024-07-23T17:20:37.41 3.0 undecidable manual S 0.26 0
IV.ASSB.HHZ. 2024-07-23T17:20:31.68 3.0 undecidable manual S -0.23 0
IV.CESX.HHZ. 2024-07-23T17:20:26.90 3.0 undecidable manual S -0.88 0
IV.FIAM.HHZ. 2024-07-23T17:20:23.91 0.3 undecidable manual S 194 41.4252 93 0.2 71
IV.GAVE.EHZ. 2024-07-23T17:20:20.24 0.3 undecidable manual S 284 29.2485 96 -0.24 73
IV.MML1.EHZ. 2024-07-23T17:20:20.92 3.0 negative manual P -0.06 0
7F.SIB1.EHN. 2024-07-23T17:20:20.83 0.3 undecidable manual S 4 29.4483 96 0.3 72
IV.MOMA.HHZ. 2024-07-23T17:20:20.79 3.0 undecidable manual P 0.05 0
IV.TERO.HHZ. 2024-07-23T17:20:20.31 0.3 undecidable manual S 91 29.4483 96 -0.22 73
7F.SIB2.EHN. 2024-07-23T17:20:20.46 0.3 undecidable manual S 10 29.4483 96 -0.05 75
IV.CSP1.EHZ. 2024-07-23T17:20:19.68 3.0 positive manual P -0.28 0
IV.MF5.EHZ. 2024-07-23T17:20:18.98 3.0 positive manual P 0.27 0
IV.MMO1.EHZ. 2024-07-23T17:20:18.58 3.0 positive manual P 1.87 0
IV.MTRA.HNZ. 2024-07-23T17:20:17.40 0.3 undecidable manual S 42 18.87 104 -0.33 72
IV.LNSS.HHZ. 2024-07-23T17:20:17.08 0.3 undecidable manual S 260 16.7721 108 -0.13 76
IV.FIAM.HHZ. 2024-07-23T17:20:17.47 0.6 negative manual P 194 41.4252 93 -0.53 45
IV.ARRO.EHZ. 2024-07-23T17:20:17.76 0.6 negative manual P 262 39.3273 93 0.08 49
IV.TERO.HHZ. 2024-07-23T17:20:16.12 0.3 undecidable manual P 91 29.4483 96 -0.04 76
7F.SIB2.EHN. 2024-07-23T17:20:16.12 0.3 undecidable manual P 10 29.4483 96 -0.03 76
IV.GAVE.EHZ. 2024-07-23T17:20:16.13 0.3 undecidable manual P 284 29.2485 96 0 76
7F.SIB1.EHN. 2024-07-23T17:20:16.35 0.3 undecidable manual P 4 29.4483 96 0.19 74
IV.MC2.EHE. 2024-07-23T17:20:16.55 0.6 undecidable manual P 352 31.5462 95 0.07 50
IV.RM33.EHZ. 2024-07-23T17:20:16.26 0.3 undecidable manual S 190 13.5753 117 -0.15 76
IV.SMA1.EHZ. 2024-07-23T17:20:15.11 0.3 undecidable manual S 89 7.5813 140 -0.04 79
7F.SIB3.EHE. 2024-07-23T17:20:15.92 0.3 undecidable manual P 5 27.3504 96 0.09 75
IV.LNSS.HHZ. 2024-07-23T17:20:14.25 0.3 undecidable manual P 260 16.7721 108 0.01 78
IV.MTRA.HNZ. 2024-07-23T17:20:14.54 0.3 undecidable manual P 42 18.87 104 0 78
IV.CAMP.HHZ. 2024-07-23T17:20:14.55 0.6 positive manual P 127 17.0718 107 0.27 49
IV.RM33.EHZ. 2024-07-23T17:20:13.99 0.1 positive manual P 190 13.5753 117 0.21 100
IV.SMA1.EHZ. 2024-07-23T17:20:13.39 0.6 undecidable manual P 89 7.5813 140 0.34 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.4 0.003075 0.32 AML other m 2024-07-23T17:20:15.44
IV.SMA1.EHN. ML:2.4 0.0028049999999999998 0.28 AML other m 2024-07-23T17:20:15.58
IV.RM33.EHN. ML:1.7 0.000464 0.24 AML other m 2024-07-23T17:20:16.55
IV.RM33.HNN. ML:1.7 0.00048699999999999997 0.24 AML other m 2024-07-23T17:20:16.43
IV.RM33.HNE. ML:1.7 0.0004325143 0.17 AML other m 2024-07-23T17:20:17.35
IV.RM33.EHE. ML:1.6 0.0004115 0.12 AML other m 2024-07-23T17:20:16.83
IV.LNSS.HHE. ML:1.5 0.00026938072 0.14 AML other m 2024-07-23T17:20:17.19
IV.LNSS.HHN. ML:1.6 0.0002932399 0.1 AML other m 2024-07-23T17:20:17.75
IV.CAMP.HHN. ML:1.0 0.00006814999999999999 1.58 AML other m 2024-07-23T17:20:18.81
IV.CAMP.HHE. ML:0.9 0.000058389725 0.46 AML other m 2024-07-23T17:20:18.98
IV.GAVE.EHN. ML:1.5 0.00014846659 0.16 AML other m 2024-07-23T17:20:20.66
IV.TERO.HHE. ML:1.6 0.0001868746 0.14 AML other m 2024-07-23T17:20:21.67
IV.TERO.HHN. ML:1.5 0.0001505 0.1 AML other m 2024-07-23T17:20:21.36
IV.GAVE.EHE. ML:1.8 0.00027049999999999996 0.16 AML other m 2024-07-23T17:20:21.67
IV.ARRO.EHN. ML:1.4 0.00008221427500000001 0.16 AML other m 2024-07-23T17:20:25.23
IV.ARRO.EHE. ML:1.4 0.0000781 0.2 AML other m 2024-07-23T17:20:25.06
IV.CSP1.EHN. ML:1.6 0.0001121 0.18 AML other m 2024-07-23T17:20:27.74
IV.CSP1.EHE. ML:1.6 0.000094009825 0.22 AML other m 2024-07-23T17:20:28.12
IV.MOMA.HHN. ML:1.5 0.0000666 0.16 AML other m 2024-07-23T17:20:30.36
IV.MOMA.HHE. ML:1.4 0.00006125 0.62 AML other m 2024-07-23T17:20:30.70
IV.LNSS.HNE. ML:1.5 0.00022782045000000002 0.15 AML other m 2024-07-23T17:20:18.11
IV.LNSS.HNN. ML:1.6 0.00030684165 0.18 AML other m 2024-07-23T17:20:17.27
IV.TERO.HNE. ML:1.3 0.000100092705 0.79 AML other m 2024-07-23T17:20:28.13
IV.TERO.HNN. ML:1.5 0.00015705105 0.11 AML other m 2024-07-23T17:20:21.37
IV.GAVE.HNE. ML:1.8 0.000269456 0.15 AML other m 2024-07-23T17:20:21.75
IV.GAVE.HNN. ML:1.4 0.00011760208 0.43 AML other m 2024-07-23T17:20:22.06
IV.FIAM.HNE. ML:1.5 0.00010629157 0.58 AML other m 2024-07-23T17:20:31.28
IV.FIAM.HNN. ML:1.7 0.0001511207 0.7 AML other m 2024-07-23T17:20:23.82
IV.FIAM.HHE. ML:1.3 0.00006026087 0.2 AML other m 2024-07-23T17:20:24.53
IV.FIAM.HHN. ML:2.2 0.00057575455 0.48 AML other m 2024-07-23T17:20:36.19
IV.MF5.EHE. ML:1.8 0.00018864865 0.46 AML other m 2024-07-23T17:20:26.26
IV.MF5.EHN. ML:1.4 0.00007509499 0.16 AML other m 2024-07-23T17:20:26.14
IV.MOMA.HNE. ML:1.7 0.00010024516499999999 0.69 AML other m 2024-07-23T17:20:33.62
IV.MOMA.HNN. ML:1.8 0.00012656562 0.75 AML other m 2024-07-23T17:20:23.45
IV.MML1.HNE. ML:1.7 0.00010306889999999999 1.02 AML other m 2024-07-23T17:20:39.89
IV.MML1.HNN. ML:1.7 0.00011393151 0.73 AML other m 2024-07-23T17:20:22.98
IV.MML1.EHE. ML:1.0 0.000018223345000000002 0.18 AML other m 2024-07-23T17:20:30.65
IV.MML1.EHN. ML:1.2 0.0000302566 0.18 AML other m 2024-07-23T17:20:30.78
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