Earthquake with magnitude of ML 1.6 on date 18-04-2024 and time 08:04:26 (UTC) in region 3 km S Montemonaco (AP)

A magnitude ML 1.6 earthquake occured in region: 3 km S Montemonaco (AP), on

  • 18-04-2024 08:04:26 (UTC)
  • 18-04-2024 10:04:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8760, 13.3280 at 23 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.

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 8 1178 2305
Palmiano AP 11 196 2501
Comunanza AP 12 3166 5667
Arquata del Tronto AP 12 1178 6845
Amandola FM 12 3629 10474
Roccafluvione AP 12 2010 12484
Venarotta AP 14 2066 14550
Acquasanta Terme AP 14 2916 17466
Castelsantangelo sul Nera MC 14 281 17747
Bolognola MC 16 142 17889
Montefalcone Appennino FM 17 424 18313
Force AP 17 1354 19667
Ussita MC 17 444 20111
Smerillo FM 17 365 20476
Sarnano MC 18 3264 23740
Monte San Martino MC 20 765 24505

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)
86 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 1.6 2024-04-18
08:04:26
42.8762 13.3277 23 2024-04-18
08:22:31
Sala Sismica INGV-Roma 126854101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-18 08:04:26 ± 0.12
Latitude 42.8762 ± 0.0036
Longitude 13.3277 ± 0.0061
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126854101

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 408
Semi-minor axis of confidence ellipse (meter) 341
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 410.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.02338
Epicentral distance of station farthest from the epicenter (degree) 0.35163
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:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 126854101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-18 08:22:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2024-04-18T08:04:40.13 0.6 undecidable manual S 218 38.3283 114 0.4 46
IV.TERO.HHZ. 2024-04-18T08:04:39.39 0.6 undecidable manual S 141 36.0417 115 0.22 48
IV.CESI.HHZ. 2024-04-18T08:04:39.79 0.6 undecidable manual S 293 37.2294 115 0.33 47
IV.MML1.EHZ. 2024-04-18T08:04:39.71 0.6 undecidable manual S 312 39.0276 113 -0.2 48
IV.GUMA.HHZ. 2024-04-18T08:04:36.31 0.6 undecidable manual S 2 20.6682 133 0.56 46
IV.FDMO.HHZ. 2024-04-18T08:04:36.81 0.6 undecidable manual S 312 26.3514 125 -0.14 50
IV.CSP1.EHZ. 2024-04-18T08:04:36.93 0.6 undecidable manual S 337 25.9518 125 0.09 50
IV.SMA1.EHZ. 2024-04-18T08:04:36.78 0.6 undecidable manual S 179 27.2505 124 -0.36 48
IV.NRCA.HHZ. 2024-04-18T08:04:35.26 0.6 undecidable manual S 255 17.9709 137 0.02 51
IV.MF5.EHZ. 2024-04-18T08:04:35.07 0.6 undecidable manual S 41 16.3725 140 0.11 51
IV.LNSS.HHZ. 2024-04-18T08:04:34.18 0.1 negative manual P 218 38.3283 114 0.11 98
IV.MTRA.EHZ. 2024-04-18T08:04:34.53 0.6 undecidable manual S 157 14.3745 144 -0.1 51
IV.MML1.EHZ. 2024-04-18T08:04:34.06 0.6 negative manual P 312 39.0276 113 -0.12 49
IV.MMO1.EHZ. 2024-04-18T08:04:33.24 0.6 undecidable manual S 359 2.5974 173 -0.21 51
IV.TERO.HHZ. 2024-04-18T08:04:33.57 1.0 negative manual P 141 36.0417 115 -0.18 24
IV.CESI.HHZ. 2024-04-18T08:04:33.84 0.1 positive manual P 293 37.2294 115 -0.08 98
IV.SMA1.EHZ. 2024-04-18T08:04:32.50 0.3 positive manual P 179 27.2505 124 -0.08 76
IV.FDMO.HHZ. 2024-04-18T08:04:32.27 0.1 undecidable manual P 312 26.3514 125 -0.19 98
IV.CSP1.EHZ. 2024-04-18T08:04:32.35 0.3 negative manual P 337 25.9518 125 -0.05 76
IV.MF5.EHZ. 2024-04-18T08:04:31.51 0.1 negative manual P 41 16.3725 140 0.19 100
IV.GUMA.HHZ. 2024-04-18T08:04:31.65 1.0 undecidable manual P 2 20.6682 133 -0.13 25
IV.MTRA.EHZ. 2024-04-18T08:04:31.08 0.6 undecidable manual P 157 14.3745 144 -0.05 52
IV.NRCA.HHZ. 2024-04-18T08:04:31.40 1.0 undecidable manual P 255 17.9709 137 -0.08 26
IV.MMO1.EHZ. 2024-04-18T08:04:30.35 0.3 undecidable manual P 359 2.5974 173 -0.09 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHN. ML:1.7 0.0003195 0.42 AML other m 2024-04-18T08:04:33.34
IV.MMO1.EHE. ML:1.8 0.0004345 0.36 AML other m 2024-04-18T08:04:33.34
IV.MTRA.EHN. ML:1.7 0.0003205 1.78 AML other m 2024-04-18T08:04:35.06
IV.MTRA.EHE. ML:1.8 0.0003715 1.18 AML other m 2024-04-18T08:04:35.16
IV.NRCA.HHN. ML:1.5 0.000185 0.08 AML other m 2024-04-18T08:04:35.79
IV.NRCA.HHE. ML:1.5 0.000179 1.52 AML other m 2024-04-18T08:04:35.05
IV.GUMA.HHE. ML:1.5 0.000148 1.2 AML other m 2024-04-18T08:04:36.29
IV.FDMO.HHN. ML:1.7 0.00022 0.3 AML other m 2024-04-18T08:04:37.18
IV.FDMO.HHE. ML:1.6 0.00018449999999999999 0.12 AML other m 2024-04-18T08:04:37.08
IV.GUMA.HHN. ML:1.5 0.00015900000000000002 1.4 AML other m 2024-04-18T08:04:37.08
IV.CSP1.EHN. ML:1.9 0.000313 0.34 AML other m 2024-04-18T08:04:37.15
IV.CSP1.EHE. ML:1.9 0.00032499999999999993 0.42 AML other m 2024-04-18T08:04:37.18
IV.CESI.HHE. ML:1.2 0.000054550000000000005 0.28 AML other m 2024-04-18T08:04:40.14
IV.CESI.HHN. ML:1.3 0.00007159999999999999 0.32 AML other m 2024-04-18T08:04:40.17
IV.MML1.EHN. ML:1.3 0.000057 0.16 AML other m 2024-04-18T08:04:40.33
IV.MML1.EHE. ML:1.2 0.000044 0.76 AML other m 2024-04-18T08:04:41.58
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download