Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 18-04-2024 and time 10:19:01 (Italy) in region 3 km S Montemonaco (AP)

A magnitude ML 2.1 earthquake occured in region: 3 km S Montemonaco (AP), on

  • 18-04-2024 08:19:01 (UTC)
  • 18-04-2024 10:19:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8770, 13.3360 at 24 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
Montemonaco AP 3 604 604
Montegallo AP 4 523 1127
Montefortino FM 7 1178 2305
Palmiano AP 10 196 2501
Comunanza AP 11 3166 5667
Roccafluvione AP 12 2010 7677
Amandola FM 12 3629 11306
Arquata del Tronto AP 12 1178 12484
Venarotta AP 13 2066 14550
Acquasanta Terme AP 13 2916 17466
Castelsantangelo sul Nera MC 15 281 17747
Bolognola MC 16 142 17889
Force AP 16 1354 19243
Montefalcone Appennino FM 16 424 19667
Smerillo FM 17 365 20032
Ussita MC 18 444 20476
Sarnano MC 18 3264 23740
Monte San Martino MC 19 765 24505
Ascoli Piceno AP 20 49407 73912

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km NW of Teramo (54892 inhabitants)
52 Km E of Foligno (57155 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
66 Km NE of Terni (111501 inhabitants)
78 Km NW of Montesilvano (53738 inhabitants)
81 Km E of Perugia (166134 inhabitants)
84 Km S of Ancona (100861 inhabitants)
85 Km NW of Pescara (121014 inhabitants)
90 Km NW of Chieti (51815 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 2.1 2024-04-18
08:19:01		 42.8773 13.3362 24 2024-04-18
08:25:13		 Sala Sismica INGV-Roma 126854191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-18 08:19:01 ± 0.14
Latitude 42.8773 ± 0.0045
Longitude 13.3362 ± 0.0061
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126854191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 550
Semi-minor axis of confidence ellipse (meter) 212
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 109
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51441
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 15
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 126854191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-18 08:25:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GIUL.HHZ. 2024-04-18T08:19:35.48 3.0 undecidable manual S -6.58 0
IV.ZCCA.HHZ. 2024-04-18T08:19:33.85 3.0 undecidable manual Pg -1.12 0
IV.ARRO.EHZ. 2024-04-18T08:19:19.51 0.3 undecidable manual S 235 57.0984 106 -0.16 69
IV.GAVE.EHZ. 2024-04-18T08:19:16.27 0.1 undecidable manual S 240 41.4252 114 0.53 86
IV.RM33.EHZ. 2024-04-18T08:19:16.37 0.6 undecidable manual S 194 42.0246 113 0.48 44
IV.LNSS.HHZ. 2024-04-18T08:19:15.46 0.3 undecidable manual S 218 38.8278 115 0.35 68
IV.SSFR.HHZ. 2024-04-18T08:19:15.48 3.0 undecidable manual S -7.05 0
IV.MML1.EHZ. 2024-04-18T08:19:15.32 0.3 undecidable manual S 312 39.5271 115 0.05 73
IV.CESI.HHZ. 2024-04-18T08:19:14.98 0.3 undecidable manual S 292 37.8288 116 0.12 72
IT.MTCL.HGZ. 2024-04-18T08:19:12.88 0.3 undecidable manual S 295 30.2475 123 -0.22 71
IV.CSP1.EHZ. 2024-04-18T08:19:12.19 0.6 undecidable manual S 336 26.0517 127 0.01 50
IV.ARRO.EHZ. 2024-04-18T08:19:11.88 0.1 undecidable manual P 235 57.0984 106 -0.09 93
IV.SNTG.HHZ. 2024-04-18T08:19:11.23 3.0 undecidable manual S -4.56 0
IV.GUMA.HHZ. 2024-04-18T08:19:11.45 0.6 undecidable manual S 360 20.5683 135 0.38 47
IV.NRCA.HHZ. 2024-04-18T08:19:10.47 1.0 undecidable manual S 255 18.6702 138 -0.25 24
IV.MF5.EHZ. 2024-04-18T08:19:10.83 0.6 undecidable manual S 39 15.873 143 0.59 45
IV.GIGS.HHZ. 2024-04-18T08:19:10.92 3.0 undecidable manual P -0.84 0
IV.MML1.EHZ. 2024-04-18T08:19:09.25 0.1 undecidable manual P 312 39.5271 115 -0.18 94
IV.RM33.EHZ. 2024-04-18T08:19:09.74 0.1 positive manual P 194 42.0246 113 -0.05 96
IV.LNSS.HHZ. 2024-04-18T08:19:09.28 0.1 undecidable manual P 218 38.8278 115 -0.06 97
IV.GAVE.EHZ. 2024-04-18T08:19:09.61 0.1 undecidable manual P 240 41.4252 114 -0.1 95
IV.CAMP.HHZ. 2024-04-18T08:19:09.66 3.0 undecidable manual P 0.51 0
IV.MTRA.HNZ. 2024-04-18T08:19:09.79 0.6 undecidable manual S 160 14.2746 146 -0.21 49
IV.CESI.HHZ. 2024-04-18T08:19:09.04 0.1 undecidable manual P 292 37.8288 116 -0.16 95
IV.TERO.HHZ. 2024-04-18T08:19:08.37 3.0 undecidable manual P -1.76 0
IV.MNTT.EHZ. 2024-04-18T08:19:08.82 3.0 positive manual P -0.92 0
IV.MMO1.EHZ. 2024-04-18T08:19:08.53 0.6 undecidable manual S 343 2.4975 173 -0.36 48
IV.OFFI.HHZ. 2024-04-18T08:19:08.81 3.0 positive manual P -1.36 0
IV.GUMA.HHZ. 2024-04-18T08:19:07.08 0.1 negative manual P 360 20.5683 135 0.07 100
IV.SMA1.EHZ. 2024-04-18T08:19:07.73 0.1 positive manual P 0.53 1.61
IV.CSP1.EHZ. 2024-04-18T08:19:07.57 0.1 negative manual P 336 26.0517 127 -0.08 98
IV.SAP2.EHZ. 2024-04-18T08:19:07.69 0.3 positive manual P -0.25 1.21
IT.MTCL.HGZ. 2024-04-18T08:19:07.94 0.1 undecidable manual P 295 30.2475 123 -0.24 94
IV.MTRA.HNZ. 2024-04-18T08:19:06.30 0.1 undecidable manual P 160 14.2746 146 -0.09 100
IV.NRCA.HHZ. 2024-04-18T08:19:06.65 0.1 undecidable manual P 255 18.6702 138 -0.16 98
IV.MF5.EHZ. 2024-04-18T08:19:06.73 0.1 negative manual P 39 15.873 143 0.2 98
IV.MMO1.EHZ. 2024-04-18T08:19:05.54 1.0 undecidable manual P 343 2.4975 173 -0.21 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHN. ML:2.5 0.0019 0.44 AML other m 2024-04-18T08:19:08.57
IV.MMO1.EHE. ML:2.6 0.00263 0.36 AML other m 2024-04-18T08:19:08.58
IV.MTRA.HNN. ML:2.5 0.0019199999999999998 0.22 AML other m 2024-04-18T08:19:10.29
IV.MTRA.EHN. ML:2.5 0.00193 0.24 AML other m 2024-04-18T08:19:10.30
IV.MTRA.HNE. ML:2.6 0.0020949999999999996 0.76 AML other m 2024-04-18T08:19:10.39
IV.MTRA.EHE. ML:2.6 0.00212 0.78 AML other m 2024-04-18T08:19:10.40
IV.NRCA.HNN. ML:2.2 0.0008605 0.54 AML other m 2024-04-18T08:19:10.71
IV.NRCA.HNE. ML:2.3 0.001105 1.88 AML other m 2024-04-18T08:19:11.04
IV.NRCA.HHE. ML:2.3 0.001125 1.86 AML other m 2024-04-18T08:19:11.05
IV.GUMA.HHE. ML:2.2 0.0007535 0.28 AML other m 2024-04-18T08:19:11.52
IV.GUMA.HHN. ML:2.3 0.001014 1.28 AML other m 2024-04-18T08:19:11.65
IV.GUMA.HNN. ML:2.3 0.0010335000000000001 0.68 AML other m 2024-04-18T08:19:11.65
IV.NRCA.HHN. ML:2.3 0.0010249999999999999 1.26 AML other m 2024-04-18T08:19:11.03
IV.CSP1.EHN. ML:2.7 0.0019899999999999996 0.34 AML other m 2024-04-18T08:19:12.55
IV.CSP1.EHE. ML:2.8 0.00237 0.42 AML other m 2024-04-18T08:19:12.41
IV.GUMA.HNE. ML:2.3 0.0009325 1.68 AML other m 2024-04-18T08:19:12.06
IV.MF5.EHE. ML:1.7 0.000244 0.58 AML other m 2024-04-18T08:19:13.39
IV.SAP2.EHN. ML:2.4 0.0010899999999999998 0.72 AML other m 2024-04-18T08:19:13.49
IV.SMA1.EHE. ML:1.8 0.00028500000000000004 0.22 AML other m 2024-04-18T08:19:13.68
IV.MF5.EHN. ML:1.6 0.0002345 0.38 AML other m 2024-04-18T08:19:14.49
IV.SMA1.EHN. ML:1.9 0.000298 0.14 AML other m 2024-04-18T08:19:14.79
IV.CAMP.HHE. ML:1.5 0.0000906 0.28 AML other m 2024-04-18T08:19:15.19
IV.CESI.HHE. ML:2.0 0.00034250000000000003 0.28 AML other m 2024-04-18T08:19:15.37
IV.CESI.HHN. ML:2.2 0.0004385 0.32 AML other m 2024-04-18T08:19:15.40
IV.CAMP.HHN. ML:1.4 0.00007335 1.16 AML other m 2024-04-18T08:19:15.33
IV.MML1.HNE. ML:2.0 0.00027350000000000003 0.62 AML other m 2024-04-18T08:19:15.81
IV.MML1.EHE. ML:2.0 0.000265 0.6 AML other m 2024-04-18T08:19:15.81
IV.MML1.HNN. ML:2.1 0.0003725 0.16 AML other m 2024-04-18T08:19:15.56
IV.MML1.EHN. ML:2.1 0.000397 0.16 AML other m 2024-04-18T08:19:15.56
IV.TERO.HHE. ML:1.6 0.00011899999999999999 0.44 AML other m 2024-04-18T08:19:15.74
IV.LNSS.HHN. ML:2.2 0.000486 0.2 AML other m 2024-04-18T08:19:16.14
IV.TERO.HHN. ML:1.6 0.00013450000000000002 0.7 AML other m 2024-04-18T08:19:16.44
IV.LNSS.HHE. ML:2.3 0.0006174999999999999 1.38 AML other m 2024-04-18T08:19:16.11
IV.SAP2.EHE. ML:1.8 0.0002895 0.6 AML other m 2024-04-18T08:19:16.85
IV.RM33.EHN. ML:1.9 0.000223 0.78 AML other m 2024-04-18T08:19:16.56
IV.GAVE.EHE. ML:2.2 0.0005035 0.98 AML other m 2024-04-18T08:19:17.26
IV.RM33.EHE. ML:1.9 0.00023050000000000002 0.52 AML other m 2024-04-18T08:19:17.48
IV.GAVE.EHN. ML:2.2 0.00046600000000000005 0.18 AML other m 2024-04-18T08:19:17.76
IV.ARRO.EHE. ML:1.7 0.00010095 0.16 AML other m 2024-04-18T08:19:20.91
IV.ARRO.EHN. ML:1.6 0.00007960000000000001 1.3 AML other m 2024-04-18T08:19:22.72
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
Waveforms Seismic signals in miniseed + resp format Download