Earthquake with magnitude of ML 0.7 on date 11-04-2023 and time 02:07:23 (Italy) in region 3 km W Ascoli Piceno (AP)

A magnitude ML 0.7 earthquake occured in region: 3 km W Ascoli Piceno (AP), on

  • 11-04-2023 00:07:23 (UTC)
  • 11-04-2023 02:07:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8480, 13.5370 at 17 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
Ascoli Piceno AP 3 49407 49407
Roccafluvione AP 5 2010 51417
Venarotta AP 5 2066 53483
Folignano AP 8 9241 62724
Palmiano AP 9 196 62920
Appignano del Tronto AP 12 1785 64705
Rotella AP 12 906 65611
Castignano AP 12 2796 68407
Maltignano AP 12 2401 70808
Valle Castellana TE 13 977 71785
Force AP 13 1354 73139
Civitella del Tronto TE 14 5116 78255
Acquasanta Terme AP 14 2916 81171
Montedinove AP 14 488 81659
Castel di Lama AP 15 8634 90293
Sant'Egidio alla Vibrata TE 15 9811 100104
Comunanza AP 16 3166 103270
Offida AP 16 5058 108328
Montalto delle Marche AP 17 2122 110450
Castorano AP 17 2380 112830
Montegallo AP 17 523 113353
Ancarano TE 17 1857 115210
Montefalcone Appennino FM 17 424 115634
Colli del Tronto AP 18 3668 119302
Rocca Santa Maria TE 18 537 119839
Montemonaco AP 18 604 120443
Campli TE 18 7209 127652
Montelparo FM 19 778 128430
Smerillo FM 19 365 128795
Montefortino FM 19 1178 129973
Santa Vittoria in Matenano FM 20 1330 131303
Cossignano AP 20 978 132281
Torano Nuovo TE 20 1611 133892
Spinetoli AP 20 7215 141107

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NW of Teramo (54892 inhabitants)
56 Km N of L'Aquila (69753 inhabitants)
62 Km NW of Montesilvano (53738 inhabitants)
69 Km E of Foligno (57155 inhabitants)
70 Km NW of Pescara (121014 inhabitants)
76 Km NW of Chieti (51815 inhabitants)
79 Km E of Terni (111501 inhabitants)
86 Km S of Ancona (100861 inhabitants)
98 Km E of Perugia (166134 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 0.7 2023-04-11
00:07:23
42.848 13.5373 17 2023-04-11
00:18:49
Sala Sismica INGV-Roma 116264781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-11 00:07:23 ± 0.13
Latitude 42.8480 ± 0.0045
Longitude 13.5373 ± 0.0074
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116264781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 523
Semi-minor axis of confidence ellipse (meter) 465
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 263
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 17
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.48923
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 11
Type of magnitude ML
Reference to an origin 116264781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-11 00:18:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2023-04-11T00:07:37.64 0.3 undecidable manual S 300 42.1245 102 0 72
IV.CSP1.EHZ. 2023-04-11T00:07:36.84 0.3 undecidable manual S 315 38.2284 103 0.21 70
IV.NRCA.HHZ. 2023-04-11T00:07:35.70 0.3 undecidable manual S 267 34.4433 105 0.05 73
IV.SMA1.EHZ. 2023-04-11T00:07:34.54 0.3 undecidable manual S 214 29.2485 109 0.23 70
IV.TERO.HNN. 2023-04-11T00:07:33.67 0.6 undecidable manual S 168 25.5522 113 0.26 47
IV.CESI.HHZ. 2023-04-11T00:07:33.51 0.6 negative manual P 289 54.3012 98 -0.12 46
IV.MMO1.EHZ. 2023-04-11T00:07:31.48 0.3 undecidable manual S 288 18.0708 124 -0.15 72
IV.MF5.EHZ. 2023-04-11T00:07:31.83 0.3 undecidable manual S 338 16.7721 127 0.48 69
IV.FDMO.HHZ. 2023-04-11T00:07:31.52 1.0 negative manual P 300 42.1245 102 -0.26 23
IV.NRCA.HHZ. 2023-04-11T00:07:30.45 0.1 positive manual P 267 34.4433 105 -0.18 94
IV.CSP1.EHZ. 2023-04-11T00:07:30.92 0.6 undecidable manual P 315 38.2284 103 -0.28 46
IV.ASCOL.EHE. 2023-04-11T00:07:29.12 0.6 undecidable manual S 85 4.2957 163 -0.28 48
IV.TERO.HNN. 2023-04-11T00:07:29.35 0.1 undecidable manual P 168 25.5522 113 0.01 98
IV.SMA1.EHZ. 2023-04-11T00:07:29.81 0.3 positive manual P 214 29.2485 109 -0.05 73
IV.MMO1.EHZ. 2023-04-11T00:07:28.16 1.0 undecidable manual P 288 18.0708 124 -0.15 24
IV.MF5.EHZ. 2023-04-11T00:07:28.32 0.6 negative manual P 338 16.7721 127 0.17 49
IV.ASCOL.EHE. 2023-04-11T00:07:26.89 0.1 undecidable manual P 85 4.2957 163 -0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.0 0.00003665 1.26 AML other m 2023-04-11T00:07:36.06
IV.NRCA.HHN. ML:1.0 0.00003331129 0.14 AML other m 2023-04-11T00:07:35.78
IV.MMO1.EHE. ML:0.7 0.00002753232 0.22 AML other m 2023-04-11T00:07:33.54
IV.MMO1.EHN. ML:0.7 0.000030451114999999998 0.04 AML other m 2023-04-11T00:07:31.59
IV.MF5.EHN. ML:0.5 0.000022199759999999998 0.22 AML other m 2023-04-11T00:07:31.96
IV.SMA1.EHE. ML:0.6 0.0000193974 0.18 AML other m 2023-04-11T00:07:34.78
IV.SMA1.EHN. ML:0.8 0.000031844455 0.18 AML other m 2023-04-11T00:07:34.61
IV.CSP1.EHE. ML:0.6 0.000014511544999999998 0.36 AML other m 2023-04-11T00:07:37.26
IV.CSP1.EHN. ML:0.6 0.000014648785000000002 0.08 AML other m 2023-04-11T00:07:37.47
IV.FDMO.HHE. ML:0.2 0.0000068354695 0.12 AML other m 2023-04-11T00:07:38.28
IV.FDMO.HHN. ML:0.5 0.0000079388415 0.66 AML other m 2023-04-11T00:07:38.16
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