Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 23-04-2024 and time 08:29:16 (UTC) in region 2 km NE Castelsantangelo sul Nera (MC)

A magnitude ML 1.8 earthquake occured in region: 2 km NE Castelsantangelo sul Nera (MC), on

  • 23-04-2024 08:29:16 (UTC)
  • 23-04-2024 10:29:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9140, 13.1650 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
Castelsantangelo sul Nera MC 2 281 281
Ussita MC 4 444 725
Visso MC 7 1107 1832
Bolognola MC 10 142 1974
Preci PG 11 724 2698
Acquacanina MC 13 121 2819
Montemonaco AP 13 604 3423
Fiastra MC 14 559 3982
Norcia PG 15 4957 8939
Montefortino FM 15 1178 10117
Fiordimonte MC 15 202 10319
Montegallo AP 16 523 10842
Monte Cavallo MC 16 145 10987
Amandola FM 17 3629 14616
Pieve Torina MC 17 1458 16074
Sarnano MC 18 3264 19338
Pievebovigliana MC 18 866 20204
Arquata del Tronto AP 19 1178 21382
Sellano PG 20 1079 22461

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
52 Km NW of Teramo (54892 inhabitants)
58 Km NE of Terni (111501 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
83 Km SW of Ancona (100861 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
99 Km NW of Pescara (121014 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 1.8 2024-04-23
08:29:16		 42.914 13.1647 9 2024-04-23
08:38:47		 Sala Sismica INGV-Roma 126997231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-23 08:29:16 ± 0.06
Latitude 42.9140 ± 0.0027
Longitude 13.1647 ± 0.0037
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126997231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 92
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 67
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 36
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) 0.39120
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 22
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 126997231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-23 08:38:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2024-04-23T08:29:44.26 3.0 undecidable manual S -0.81 0
IV.FRON.EHZ. 2024-04-23T08:29:41.28 3.0 undecidable manual S 0.59 0
IV.ARRO.EHZ. 2024-04-23T08:29:31.91 3.0 undecidable manual S -0.98 0
IV.SNTG.HHZ. 2024-04-23T08:29:30.49 0.6 undecidable manual S 334 41.9247 50 0.01 47
IV.MURB.HHZ. 2024-04-23T08:29:28.41 3.0 positive manual P 0.29 0
IV.MML1.EHZ. 2024-04-23T08:29:26.23 0.6 undecidable manual S 325 27.1506 108 0.02 48
IV.CESX.HHZ. 2024-04-23T08:29:25.16 3.0 negative manual P -1.88 0
IV.MOMA.HHZ. 2024-04-23T08:29:25.86 3.0 negative manual P 0.2 0
IV.CESI.HHZ. 2024-04-23T08:29:25.16 0.6 undecidable manual S 296 23.3544 111 0.16 47
IV.CING.HHZ. 2024-04-23T08:29:25.86 3.0 negative manual P -0.05 0
IV.ASSB.HHZ. 2024-04-23T08:29:24.59 0.6 undecidable manual P 289 43.4232 50 -0.14 46
IV.GUMA.HHZ. 2024-04-23T08:29:24.89 0.6 undecidable manual S 40 21.5673 112 0.49 44
IV.CSP1.EHZ. 2024-04-23T08:29:24.02 0.6 undecidable manual S 9 19.9689 114 0.11 48
IV.RM33.EHZ. 2024-04-23T08:29:24.95 3.0 positive manual P 0 0
IV.SNTG.HHZ. 2024-04-23T08:29:24.23 1.0 undecidable manual P 334 41.9247 50 -0.27 22
IV.LNSS.HHZ. 2024-04-23T08:29:23.46 3.0 positive manual P 0.07 0
IV.SMA1.EHZ. 2024-04-23T08:29:23.09 3.0 negative manual P -0.1 0
IV.GAVE.HNN. 2024-04-23T08:29:23.05 0.1 undecidable manual P 222 33.0447 50 -0.07 95
IV.SEF1.HNE. 2024-04-23T08:29:22.81 0.1 undecidable manual P 326 31.2465 106 -0.02 96
IV.MF5.EHZ. 2024-04-23T08:29:22.23 0.1 undecidable manual P 71 25.3524 109 0.54 86
IV.FDMO.HHZ. 2024-04-23T08:29:22.44 0.6 undecidable manual S 335 14.9739 120 0.09 49
ZO.PDN11.EHE. 2024-04-23T08:29:22.76 0.6 undecidable manual S 194 14.874 121 0.44 45
IV.SAP2.EHE. 2024-04-23T08:29:22.24 0.6 undecidable manual P 43 27.75 108 0.08 48
IT.MTCL.HGE. 2024-04-23T08:29:22.87 0.6 undecidable manual S 304 16.0728 119 0.19 48
IV.MMO1.EHZ. 2024-04-23T08:29:21.83 0.6 undecidable manual S 97 13.2756 124 -0.02 50
IV.CESI.HHZ. 2024-04-23T08:29:21.28 0.1 positive manual P 296 23.3544 111 -0.05 97
IV.MML1.EHZ. 2024-04-23T08:29:21.75 0.6 positive manual P 325 27.1506 108 -0.28 46
IV.PF6.EHE. 2024-04-23T08:29:21.38 0.1 undecidable manual P 6 24.9528 109 -0.24 93
IV.FEMA.HNE. 2024-04-23T08:29:21.05 0.6 undecidable manual S 300 10.7781 129 -0.09 49
IV.NRCA.HHZ. 2024-04-23T08:29:21.12 0.6 undecidable manual S 205 9.7791 132 0.22 48
IV.GUMA.HHZ. 2024-04-23T08:29:21.26 0.1 negative manual P 40 21.5673 112 0.28 93
IV.MTRA.HNE. 2024-04-23T08:29:21.74 0.1 undecidable manual P 133 25.6521 109 -0.02 97
7F.SIB2.EHE. 2024-04-23T08:29:21.12 0.3 undecidable manual S 103 11.5773 127 -0.25 71
7F.SIB3.EHE. 2024-04-23T08:29:20.48 0.6 undecidable manual S 117 9.5793 133 -0.36 46
7F.SIB1.EHE. 2024-04-23T08:29:20.42 0.6 undecidable manual S 104 8.7801 135 -0.23 48
IV.CSP1.EHZ. 2024-04-23T08:29:20.48 1.0 undecidable manual P 9 19.9689 114 -0.22 23
IT.MTCL.HGE. 2024-04-23T08:29:19.88 0.3 undecidable manual P 304 16.0728 119 -0.11 73
IV.NRCA.HHZ. 2024-04-23T08:29:19.08 0.1 negative manual P 205 9.7791 132 0.12 98
7F.SIB2.EHE. 2024-04-23T08:29:19.19 0.1 undecidable manual P 103 11.5773 127 -0.05 99
IV.MMO1.EHZ. 2024-04-23T08:29:19.54 0.1 positive manual P 97 13.2756 124 0.02 99
IV.FDMO.HHZ. 2024-04-23T08:29:19.57 0.3 positive manual P 335 14.9739 120 -0.23 71
ZO.PDN11.EHE. 2024-04-23T08:29:19.87 0.1 undecidable manual P 194 14.874 121 0.08 98
IV.FEMA.HNE. 2024-04-23T08:29:19.15 0.1 undecidable manual P 300 10.7781 129 0.05 99
7F.SIB3.EHE. 2024-04-23T08:29:18.83 0.1 undecidable manual P 117 9.5793 133 -0.1 98
7F.SIB1.EHE. 2024-04-23T08:29:18.83 0.1 undecidable manual P 104 8.7801 135 0.01 100
IV.MC2.EHZ. 2024-04-23T08:29:17.90 0.1 undecidable manual P 98 1.998 167 -0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.1 0.001945 0.72 AML other m 2024-04-23T08:29:21.37
IV.NRCA.HNE. ML:2.1 0.0019 0.74 AML other m 2024-04-23T08:29:21.37
IV.NRCA.HHN. ML:2.0 0.0015899999999999998 0.16 AML other m 2024-04-23T08:29:21.94
IV.NRCA.HNN. ML:2.0 0.0015 0.88 AML other m 2024-04-23T08:29:21.94
IV.MMO1.EHN. ML:1.9 0.0008592370499999999 0.2 AML other m 2024-04-23T08:29:21.98
IV.MMO1.EHE. ML:1.9 0.0009045 0.24 AML other m 2024-04-23T08:29:22.58
IV.FDMO.HHE. ML:2.2 0.0016 0.24 AML other m 2024-04-23T08:29:23.78
IV.FDMO.HHN. ML:2.1 0.00133 0.22 AML other m 2024-04-23T08:29:23.87
IV.CSP1.EHN. ML:2.0 0.000761 1.14 AML other m 2024-04-23T08:29:24.98
IV.GUMA.HHN. ML:1.9 0.000558 1.32 AML other m 2024-04-23T08:29:26.04
IV.CESI.HHN. ML:1.9 0.000546 0.88 AML other m 2024-04-23T08:29:26.77
IV.MML1.EHN. ML:1.7 0.00028649999999999997 0.72 AML other m 2024-04-23T08:29:27.79
IV.CESI.HHE. ML:1.7 0.000312 0.66 AML other m 2024-04-23T08:29:27.43
IV.CSP1.EHE. ML:2.0 0.000712 0.92 AML other m 2024-04-23T08:29:28.97
IV.MML1.EHE. ML:1.7 0.0002505 0.38 AML other m 2024-04-23T08:29:28.79
IV.LNSS.HHN. ML:1.5 0.00012885000000000001 0.42 AML other m 2024-04-23T08:29:29.53
IV.GUMA.HNN. ML:1.9 0.0005935 0.72 AML other m 2024-04-23T08:29:30.26
IV.GUMA.HHE. ML:1.8 0.000451 0.66 AML other m 2024-04-23T08:29:30.64
IV.GUMA.HNE. ML:1.8 0.0004385 1.26 AML other m 2024-04-23T08:29:30.98
IV.ASSB.HHE. ML:1.9 0.00023799999999999998 0.42 AML other m 2024-04-23T08:29:31.30
IV.SNTG.HHE. ML:1.5 0.00010255 1.48 AML other m 2024-04-23T08:29:32.75
IV.ASSB.HHN. ML:1.8 0.00019700000000000002 0.78 AML other m 2024-04-23T08:29:32.37
IV.SNTG.HHN. ML:1.6 0.0001295 1.04 AML other m 2024-04-23T08:29:33.45
IV.MOMA.HHN. ML:1.6 0.00011649999999999999 0.3 AML other m 2024-04-23T08:29:34.44
IV.MOMA.HHE. ML:1.7 0.00012345 0.24 AML other m 2024-04-23T08:29:34.19
IV.SMA1.EHN. ML:1.5 0.000147 0.94 AML other m 2024-04-23T08:29:35.81
IV.SMA1.EHE. ML:1.5 0.0001265 0.82 AML other m 2024-04-23T08:29:36.10
IV.LNSS.HHE. ML:1.5 0.00012235 1.62 AML other m 2024-04-23T08:29:37.88
IV.MURB.HHE. ML:2.0 0.0001905 0.24 AML other m 2024-04-23T08:29:40.86
IV.MURB.HHN. ML:2.0 0.00016299999999999998 0.42 AML other m 2024-04-23T08:29:41.75
IV.MML1.HNE. ML:1.6 0.00021309815 0.21 AML other m 2024-04-23T08:29:28.50
IV.MML1.HNN. ML:1.7 0.00027914644999999996 0.19 AML other m 2024-04-23T08:29:27.79
IV.SNTG.HNE. ML:1.7 0.00015817295000000002 1.91 AML other m 2024-04-23T08:29:36.81
IV.SNTG.HNN. ML:1.7 0.00016566330000000002 0.46 AML other m 2024-04-23T08:29:34.61
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