Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 22-08-2023 and time 08:51:41 (Italy) in region Costa Marchigiana Picena (Ascoli Piceno)

A magnitude ML 2.1 earthquake occured in region: Costa Marchigiana Picena (Ascoli Piceno), on

  • 22-08-2023 06:51:41 (UTC)
  • 22-08-2023 08:51:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0430, 13.8650 at 29 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
Cupra Marittima AP 2 5398 5398
Massignano AP 6 1638 7036
Campofilone FM 6 1916 8952
Grottammare AP 6 16006 24958
Pedaso FM 7 2800 27758
Altidona FM 9 3390 31148
Montefiore dell'Aso AP 9 2123 33271
Ripatransone AP 10 4309 37580
Lapedona FM 11 1166 38746
San Benedetto del Tronto AP 11 47303 86049
Acquaviva Picena AP 12 3831 89880
Moresco FM 12 598 90478
Monterubbiano FM 13 2230 92708
Monteprandone AP 14 12655 105363
Carassai AP 15 1100 106463
Cossignano AP 16 978 107441
Porto San Giorgio FM 17 16121 123562
Petritoli FM 17 2335 125897
Monsampolo del Tronto AP 17 4611 130508
Fermo FM 18 37655 168163
Martinsicuro TE 18 16033 184196
Ponzano di Fermo FM 18 1674 185870
Offida AP 18 5058 190928
Spinetoli AP 19 7215 198143
Monte Vidon Combatte FM 19 433 198576
Colonnella TE 19 3734 202310
Castorano AP 20 2380 204690
Monte Giberto FM 20 801 205491

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NE of Teramo (54892 inhabitants)
63 Km NW of Montesilvano (53738 inhabitants)
70 Km SE of Ancona (100861 inhabitants)
70 Km NW of Pescara (121014 inhabitants)
81 Km NW of Chieti (51815 inhabitants)
86 Km NE of L'Aquila (69753 inhabitants)
95 Km E of Foligno (57155 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 2023-08-22
06:51:41		 43.0432 13.8653 29 2023-08-22
07:02:54		 Sala Sismica INGV-Roma 120373291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-22 06:51:41 ± 0.22
Latitude 43.0432 ± 0.0090
Longitude 13.8653 ± 0.0160
Depth (km) 29 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120373291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1266
Semi-minor axis of confidence ellipse (meter) 561
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 96
Circular confidence region, given by single value of horizontal uncertainty (meter) 1270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 198
Number of associated phases, regardless of their use for origin computation 63
Number of defining phases 38
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.99465
Number of stations at which the event was observed 47
Number of stations from which data was used for origin computation 22
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 120373291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-22 07:02:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2023-08-22T06:53:36.33 3.0 undecidable manual Pg 18.129999 0
ST.RONC.EHZ. 2023-08-22T06:53:27.23 3.0 undecidable manual Sn -0.08 0
IV.ACATE.EHZ. 2023-08-22T06:53:20.41 3.0 undecidable manual Pg 7.21 0
IV.ROVR.HHZ. 2023-08-22T06:53:12.44 3.0 undecidable manual Sn -3.73 0
IV.GMB1.HHZ. 2023-08-22T06:53:11.21 3.0 undecidable manual Pg 10.72 0
IV.PTCC.HHZ. 2023-08-22T06:53:08.69 3.0 undecidable manual Sn -9.99 0
GU.GRAM.HHZ. 2023-08-22T06:53:07.81 3.0 undecidable manual Sn -3.37 0
IV.AGST.EHZ. 2023-08-22T06:53:04.09 3.0 undecidable manual Pn -7.05 0
IV.MFNL.HHZ. 2023-08-22T06:52:59.06 3.0 undecidable manual Pn -3.79 0
IV.SOI.EHZ. 2023-08-22T06:52:56.40 3.0 positive manual Pn -6.18 0
IV.STAL.HHZ. 2023-08-22T06:52:44.36 3.0 undecidable manual Pg 8.08 0
IV.SPS2.HHZ. 2023-08-22T06:52:40.36 3.0 negative manual Pn -7.98 0
GU.GORR.HHZ. 2023-08-22T06:52:39.94 3.0 undecidable manual Pn -0.14 0
IV.LAV9.HNZ. 2023-08-22T06:52:26.51 3.0 undecidable manual Sn -8.02 0
IV.ATPI.EHZ. 2023-08-22T06:52:21.75 3.0 undecidable manual S -0.84 0
IV.MOMA.HHZ. 2023-08-22T06:52:18.04 3.0 undecidable manual S 1.45 0
IV.MCIV.CHZ. 2023-08-22T06:52:17.50 3.0 negative manual Pg 5.61 0
IV.MURB.HHZ. 2023-08-22T06:52:17.05 3.0 undecidable manual S -0.73 0
IV.ATCC.EHZ. 2023-08-22T06:52:14.31 3.0 undecidable manual S -0.2 0
IV.TOLF.HHZ. 2023-08-22T06:52:14.29 3.0 undecidable manual Pg 1.52 0
IV.FOSV.EHZ. 2023-08-22T06:52:10.85 0.6 undecidable manual S 288 93.6396 103 1.27 30
IV.MML1.EHZ. 2023-08-22T06:52:04.82 0.6 undecidable manual S 276 72.8715 107 0.61 42
IV.INTR.HHZ. 2023-08-22T06:52:03.32 3.0 undecidable manual P -0.68 0
IV.FDMO.HHZ. 2023-08-22T06:52:02.07 0.6 undecidable manual S 270 63.0924 109 0.34 45
IV.PIEI.HHZ. 2023-08-22T06:52:02.86 3.0 negative manual Pn -1.48 0
IV.NRCA.HHZ. 2023-08-22T06:52:02.62 0.6 undecidable manual S 249 65.2902 109 0.33 45
IV.ATVO.HHZ. 2023-08-22T06:52:02.68 3.0 undecidable manual Pn -2.05 0
IV.SMA1.EHZ. 2023-08-22T06:52:01.94 0.6 undecidable manual S 223 62.8926 109 0.26 45
IV.MPAG.EHZ. 2023-08-22T06:52:01.22 0.3 undecidable manual P 306 110.4006 100 0.93 50
IV.T0110.HHZ. 2023-08-22T06:52:00.47 3.0 positive manual P 0.62 0
IV.TERO.HHZ. 2023-08-22T06:51:59.31 0.6 undecidable manual S 205 51.2154 114 0.51 43
IV.CSP1.EHZ. 2023-08-22T06:51:59.42 0.6 undecidable manual S 276 53.8017 113 0 48
IV.FOSV.EHZ. 2023-08-22T06:51:58.26 0.3 undecidable manual P 288 93.6396 103 0.51 61
IV.MTRA.EHE. 2023-08-22T06:51:58.06 0.6 undecidable manual S 230 49.617 115 -0.34 46
IV.ASSB.HHZ. 2023-08-22T06:51:58.56 3.0 undecidable manual Pg -1.61 0
IV.MMO1.EHZ. 2023-08-22T06:51:57.25 0.6 undecidable manual S 250 46.5201 117 -0.41 45
IV.GUMA.HHZ. 2023-08-22T06:51:57.21 0.6 undecidable manual S 273 43.0236 119 0.38 46
IV.LNSS.HHZ. 2023-08-22T06:51:56.14 0.3 undecidable manual P 234 83.0502 104 -0.03 69
IV.TRTR.HHZ. 2023-08-22T06:51:55.56 0.6 undecidable manual S 171 26.3514 134 2.34 13
IV.RM33.EHZ. 2023-08-22T06:51:55.48 0.3 undecidable manual P 222 79.4649 105 -0.16 68
IV.MF5.EHZ. 2023-08-22T06:51:54.87 0.6 undecidable manual S 260 33.4443 126 0.19 49
IV.MML1.EHZ. 2023-08-22T06:51:54.46 0.1 undecidable manual P 276 72.8715 107 -0.19 90
IV.MNTP.HNZ. 2023-08-22T06:51:54.74 0.6 undecidable manual S 288 33.744 126 0.01 50
IV.GIGS.HHZ. 2023-08-22T06:51:54.22 0.3 undecidable manual P 200 69.6747 107 0.04 70
IV.CAMP.HHZ. 2023-08-22T06:51:53.79 0.3 undecidable manual P 214 67.4769 108 -0.07 71
IV.NRCA.HHZ. 2023-08-22T06:51:53.27 0.1 positive manual P 249 65.2902 109 -0.28 90
IV.MNTT.EHZ. 2023-08-22T06:51:52.64 0.6 undecidable manual S 276 21.9669 139 0.23 49
IV.SMA1.EHZ. 2023-08-22T06:51:52.79 0.3 undecidable manual P 223 62.8926 109 -0.41 66
IV.FDMO.HHZ. 2023-08-22T06:51:52.91 0.1 undecidable manual P 270 63.0924 109 -0.31 89
IV.CSP1.EHZ. 2023-08-22T06:51:51.63 0.1 negative manual P 276 53.8017 113 -0.26 92
IV.PP3.EHZ. 2023-08-22T06:51:51.17 0.3 undecidable manual P 331 42.5241 119 0.85 58
IV.OFFI.HHZ. 2023-08-22T06:51:51.87 0.6 undecidable manual S 231 18.87 144 -0.03 52
IV.TERO.HHZ. 2023-08-22T06:51:51.39 0.1 undecidable manual P 205 51.2154 114 -0.14 96
IV.GUMA.HHZ. 2023-08-22T06:51:50.35 0.3 undecidable manual P 273 43.0236 119 -0.04 74
IV.MTRA.EHE. 2023-08-22T06:51:50.94 0.1 undecidable manual P 230 49.617 115 -0.36 91
IV.CADA.HNZ. 2023-08-22T06:51:50.78 0.6 undecidable manual S 333 18.7701 144 -1.1 36
IV.MMO1.EHZ. 2023-08-22T06:51:50.54 0.1 undecidable manual P 250 46.5201 117 -0.33 92
IV.TRTR.HHZ. 2023-08-22T06:51:49.50 0.3 undecidable manual P 171 26.3514 134 1.19 49
IV.MF5.EHZ. 2023-08-22T06:51:49.11 0.1 undecidable manual P 260 33.4443 126 -0.04 100
IV.MNTP.HNZ. 2023-08-22T06:51:48.99 0.3 undecidable manual P 288 33.744 126 -0.19 72
IV.MNTT.EHZ. 2023-08-22T06:51:47.69 0.1 negative manual P 276 21.9669 139 -0.15 100
IV.OFFI.HHZ. 2023-08-22T06:51:47.45 0.3 undecidable manual P 231 18.87 144 -0.1 76
IV.CADA.HNZ. 2023-08-22T06:51:46.93 0.3 undecidable manual P 333 18.7701 144 -0.6 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTT.EHE. ML:2.9 0.00312 0.32 AML other m 2023-08-22T06:51:53.62
IV.MNTT.EHN. ML:2.8 0.002575 0.16 AML other m 2023-08-22T06:51:54.72
IV.MF5.EHE. ML:2.3 0.000676 0.42 AML other m 2023-08-22T06:51:55.08
IV.GUMA.HHE. ML:2.6 0.0010350000000000001 0.44 AML other m 2023-08-22T06:51:57.48
IV.MF5.EHN. ML:2.1 0.0004285 0.62 AML other m 2023-08-22T06:51:57.58
IV.GUMA.HHN. ML:2.5 0.0008855 0.78 AML other m 2023-08-22T06:51:57.88
IV.MMO1.EHN. ML:2.1 0.00032499999999999993 1.46 AML other m 2023-08-22T06:51:58.74
IV.MMO1.EHE. ML:2.1 0.00027600000000000004 1.48 AML other m 2023-08-22T06:51:58.04
IV.TERO.HHN. ML:2.0 0.0002135 1.22 AML other m 2023-08-22T06:51:59.71
IV.TERO.HHE. ML:2.0 0.000224 0.74 AML other m 2023-08-22T06:51:59.59
IV.CSP1.EHN. ML:2.2 0.00035099999999999997 0.62 AML other m 2023-08-22T06:52:00.42
IV.CSP1.EHE. ML:2.4 0.000463 0.44 AML other m 2023-08-22T06:52:01.75
IV.FDMO.HHE. ML:2.2 0.0002475 0.24 AML other m 2023-08-22T06:52:02.21
IV.SMA1.EHE. ML:1.9 0.0001515 0.18 AML other m 2023-08-22T06:52:02.52
IV.FDMO.HHN. ML:1.8 0.00010114999999999999 0.54 AML other m 2023-08-22T06:52:02.54
IV.SMA1.EHN. ML:2.2 0.0002525 0.22 AML other m 2023-08-22T06:52:02.65
IV.NRCA.HNN. ML:2.3 0.00029949999999999996 1.5 AML other m 2023-08-22T06:52:03.08
IV.NRCA.HHN. ML:2.2 0.0002565 0.12 AML other m 2023-08-22T06:52:03.66
IV.NRCA.HNE. ML:2.2 0.00023899999999999998 0.14 AML other m 2023-08-22T06:52:03.88
IV.NRCA.HHE. ML:2.2 0.0002445 0.16 AML other m 2023-08-22T06:52:03.89
IV.MML1.EHN. ML:2.3 0.000306 0.16 AML other m 2023-08-22T06:52:05.75
IV.MML1.EHE. ML:2.1 0.00016900000000000002 0.18 AML other m 2023-08-22T06:52:05.76
IV.GIGS.HHE. ML:1.2 0.000024050000000000002 0.28 AML other m 2023-08-22T06:52:07.59
IV.CAMP.HHE. ML:1.5 0.000047149999999999994 0.62 AML other m 2023-08-22T06:52:10.72
IV.CAMP.HHN. ML:1.5 0.0000514 0.32 AML other m 2023-08-22T06:52:10.80
IV.GIGS.HHN. ML:1.1 0.0000222 0.42 AML other m 2023-08-22T06:52:11.49
IV.RM33.EHN. ML:2.0 0.00011784999999999999 0.36 AML other m 2023-08-22T06:52:12.48
IV.RM33.EHE. ML:2.0 0.0001225 0.22 AML other m 2023-08-22T06:52:13.83
IV.LNSS.HHE. ML:2.2 0.00017099999999999998 0.72 AML other m 2023-08-22T06:52:14.40
IV.LNSS.HHN. ML:2.2 0.000182 0.42 AML other m 2023-08-22T06:52:14.44
IV.FOSV.EHE. ML:2.1 0.0001275 0.96 AML other m 2023-08-22T06:52:15.79
IV.FOSV.EHN. ML:2.3 0.00019350000000000001 0.48 AML other m 2023-08-22T06:52:15.67
IV.T0110.HHE. ML:2.0 0.00009655 1.56 AML other m 2023-08-22T06:52:15.16
IV.MPAG.EHE. ML:2.1 0.00010145 1.18 AML other m 2023-08-22T06:52:18.26
IV.MPAG.EHN. ML:2.0 0.0000917 1.18 AML other m 2023-08-22T06:52:18.29
IV.T0110.HHN. ML:2.0 0.000121 0.4 AML other m 2023-08-22T06:52:19.20
IV.MURB.HHN. ML:2.6 0.000307 1.16 AML other m 2023-08-22T06:52:20.05
IV.MURB.HHE. ML:2.7 0.000376 0.38 AML other m 2023-08-22T06:52:20.65
IV.MOMA.HHE. ML:2.0 0.0000857 0.36 AML other m 2023-08-22T06:52:20.80
IV.MOMA.HHN. ML:2.1 0.0000925 0.28 AML other m 2023-08-22T06:52:21.29
IV.PIEI.HHE. ML:2.1 0.00008999999999999999 0.96 AML other m 2023-08-22T06:52:21.25
IV.PIEI.HHN. ML:1.9 0.00006175 0.36 AML other m 2023-08-22T06:52:21.51
IV.INTR.HHE. ML:2.1 0.0000986 1.7 AML other m 2023-08-22T06:52:21.02
IV.INTR.HHN. ML:2.2 0.000133 0.42 AML other m 2023-08-22T06:52:23.21
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