Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 13-08-2023 and time 05:01:36 (Italy) in region 5 km N Acquasanta Terme (AP)

A magnitude ML 1.3 earthquake occured in region: 5 km N Acquasanta Terme (AP), on

  • 13-08-2023 03:01:36 (UTC)
  • 13-08-2023 05:01:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8120, 13.4070 at 19 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
Acquasanta Terme AP 5 2916 2916
Montegallo AP 7 523 3439
Roccafluvione AP 8 2010 5449
Arquata del Tronto AP 10 1178 6627
Venarotta AP 11 2066 8693
Palmiano AP 11 196 8889
Valle Castellana TE 11 977 9866
Montemonaco AP 12 604 10470
Ascoli Piceno AP 15 49407 59877
Montefortino FM 16 1178 61055
Comunanza AP 16 3166 64221
Rocca Santa Maria TE 17 537 64758
Force AP 18 1354 66112
Accumoli RI 18 667 66779
Folignano AP 19 9241 76020
Amandola FM 19 3629 79649

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NW of Teramo (54892 inhabitants)
51 Km N of L'Aquila (69753 inhabitants)
60 Km E of Foligno (57155 inhabitants)
68 Km E of Terni (111501 inhabitants)
69 Km W of Montesilvano (53738 inhabitants)
77 Km NW of Pescara (121014 inhabitants)
81 Km NW of Chieti (51815 inhabitants)
89 Km E of Perugia (166134 inhabitants)
90 Km S of Ancona (100861 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 1.3 2023-08-13
03:01:36		 42.8122 13.4073 19 2023-08-13
03:12:02		 Sala Sismica INGV-Roma 120074741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-13 03:01:36 ± 0.07
Latitude 42.8122 ± 0.0027
Longitude 13.4073 ± 0.0049
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120074741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 367
Semi-minor axis of confidence ellipse (meter) 158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.05576
Epicentral distance of station farthest from the epicenter (degree) 0.76532
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 120074741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-13 03:12:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2023-08-13T03:02:01.65 0.6 undecidable manual S 334 84.9483 97 -0.34 41
IV.MML1.EHZ. 2023-08-13T03:01:52.79 0.6 undecidable manual S 314 48.7179 103 0.35 44
IV.GIGS.HHZ. 2023-08-13T03:01:50.91 0.6 undecidable manual S 161 42.0246 106 0.19 46
IV.ARVD.HHZ. 2023-08-13T03:01:50.97 0.1 undecidable manual P 334 84.9483 97 -0.34 82
IV.LNSS.HHZ. 2023-08-13T03:01:50.26 0.6 undecidable manual S 232 37.8288 108 0.61 42
IV.CSP1.EHZ. 2023-08-13T03:01:49.26 0.6 undecidable manual S 332 35.1426 109 0.3 45
IV.T0110.HHZ. 2023-08-13T03:01:49.05 0.1 undecidable manual P 155 71.2731 98 -0.18 87
IV.ATCC.EHZ. 2023-08-13T03:01:49.65 0.6 positive manual P 304 74.7696 98 -0.11 44
IV.MOMA.HHZ. 2023-08-13T03:01:49.06 0.1 undecidable manual P 270 68.1762 99 0.31 85
IV.FDMO.HHZ. 2023-08-13T03:01:49.11 0.6 undecidable manual S 314 36.0417 109 -0.07 47
IV.RM33.EHZ. 2023-08-13T03:01:49.85 0.3 undecidable manual S 205 37.1295 108 0.39 67
IV.FOSV.EHZ. 2023-08-13T03:01:49.66 0.6 negative manual P 316 74.8695 98 -0.12 44
IV.MNTT.EHZ. 2023-08-13T03:01:48.48 0.3 undecidable manual S 29 31.6461 112 0.39 67
IV.ASSB.HHZ. 2023-08-13T03:01:48.33 1.0 positive manual P 293 65.9895 99 -0.09 22
IV.CAMP.HHZ. 2023-08-13T03:01:48.06 0.6 undecidable manual S 180 30.6471 113 0.22 46
IV.ARRO.EHZ. 2023-08-13T03:01:47.33 0.6 positive manual P 244 58.3971 100 0.07 46
IV.GUMA.HHZ. 2023-08-13T03:01:47.71 0.6 undecidable manual S 348 28.4493 115 0.41 45
IV.TERO.HHZ. 2023-08-13T03:01:46.82 0.6 undecidable manual S 143 26.4513 117 0 49
IV.NRCA.HHZ. 2023-08-13T03:01:46.42 0.6 undecidable manual S 276 23.9538 120 0.17 48
IV.MF5.EHZ. 2023-08-13T03:01:45.72 0.6 undecidable manual S 12 19.9689 126 0.37 46
IV.MML1.EHZ. 2023-08-13T03:01:45.56 0.3 positive manual P 314 48.7179 103 -0.24 67
IV.RM33.EHZ. 2023-08-13T03:01:44.09 0.6 negative manual P 205 37.1295 108 0.01 48
IV.LNSS.HHZ. 2023-08-13T03:01:44.27 0.1 undecidable manual P 232 37.8288 108 0.08 95
IV.GIGS.HHZ. 2023-08-13T03:01:44.63 1.0 negative manual P 161 42.0246 106 -0.18 23
7F.SIB1.EHE. 2023-08-13T03:01:44.38 0.6 undecidable manual S 309 14.4744 137 0.12 49
IV.ASCOL.EHN. 2023-08-13T03:01:44.28 0.3 undecidable manual S 74 15.4734 135 -0.16 73
IV.FDMO.HHZ. 2023-08-13T03:01:43.61 0.1 undecidable manual P 314 36.0417 109 -0.31 90
7F.SIB2.EHE. 2023-08-13T03:01:43.64 0.6 undecidable manual S 316 12.1767 143 -0.22 48
IV.MMO1.EHZ. 2023-08-13T03:01:43.65 0.6 undecidable manual S 326 11.6772 144 -0.14 49
IV.MTRA.HNE. 2023-08-13T03:01:43.08 0.6 undecidable manual S 188 6.1938 159 -0.01 50
IV.CSP1.EHZ. 2023-08-13T03:01:43.59 0.1 positive manual P 332 35.1426 109 -0.2 92
IV.MNTT.EHZ. 2023-08-13T03:01:43.77 0.3 negative manual P 29 31.6461 112 0.48 66
7F.SIB3.EHE. 2023-08-13T03:01:43.92 0.6 undecidable manual S 302 13.1757 140 -0.11 49
IV.NRCA.HHZ. 2023-08-13T03:01:42.19 0.1 undecidable manual P 276 23.9538 120 -0.04 97
IV.CAMP.HHZ. 2023-08-13T03:01:42.89 1.0 positive manual P 180 30.6471 113 -0.26 23
IV.TERO.HHZ. 2023-08-13T03:01:42.33 1.0 undecidable manual P 143 26.4513 117 -0.23 23
IV.GUMA.HHZ. 2023-08-13T03:01:42.86 0.3 positive manual P 348 28.4493 115 0.03 73
IV.MF5.EHZ. 2023-08-13T03:01:41.79 0.1 positive manual P 12 19.9689 126 0.08 97
7F.SIB1.EHE. 2023-08-13T03:01:41.11 0.1 undecidable manual P 309 14.4744 137 0.03 99
IV.ASCOL.EHN. 2023-08-13T03:01:40.68 0.6 undecidable manual P 74 15.4734 135 -0.5 45
7F.SIB3.EHE. 2023-08-13T03:01:40.81 0.1 undecidable manual P 302 13.1757 140 -0.14 97
7F.SIB2.EHE. 2023-08-13T03:01:40.67 0.1 undecidable manual P 316 12.1767 143 -0.18 96
IV.MMO1.EHZ. 2023-08-13T03:01:40.59 1.0 undecidable manual P 326 11.6772 144 -0.22 24
IV.MTRA.HNE. 2023-08-13T03:01:40.35 0.1 undecidable manual P 188 6.1938 159 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MMO1.EHN. ML:1.8 0.0004095 0.46 AML other m 2023-08-13T03:01:43.98
IV.MMO1.EHE. ML:1.3 0.0001615 0.26 AML other m 2023-08-13T03:01:44.46
IV.MF5.EHN. ML:1.5 0.000171 1.74 AML other m 2023-08-13T03:01:46.88
IV.MF5.EHE. ML:1.5 0.0001705 0.38 AML other m 2023-08-13T03:01:46.43
IV.NRCA.HNN. ML:2.2 0.0008305 0.1 AML other m 2023-08-13T03:01:46.52
IV.NRCA.HHN. ML:2.3 0.0009184999999999999 0.1 AML other m 2023-08-13T03:01:46.57
IV.NRCA.HNE. ML:2.0 0.0005545 0.08 AML other m 2023-08-13T03:01:46.66
IV.NRCA.HHE. ML:2.1 0.0006134999999999999 0.08 AML other m 2023-08-13T03:01:46.66
IV.TERO.HHN. ML:1.2 0.0000824 0.08 AML other m 2023-08-13T03:01:47.27
IV.TERO.HHE. ML:1.3 0.0000959 0.5 AML other m 2023-08-13T03:01:47.36
IV.GUMA.HHN. ML:1.7 0.0002415 0.18 AML other m 2023-08-13T03:01:48.02
IV.CAMP.HHE. ML:1.6 0.000147 0.16 AML other m 2023-08-13T03:01:48.30
IV.CAMP.HHN. ML:1.7 0.00021050000000000002 0.2 AML other m 2023-08-13T03:01:48.32
IV.CSP1.EHE. ML:1.5 0.00012235 0.26 AML other m 2023-08-13T03:01:49.45
IV.FDMO.HHN. ML:1.5 0.0000977 0.24 AML other m 2023-08-13T03:01:49.54
IV.GUMA.HHE. ML:1.6 0.0001585 0.38 AML other m 2023-08-13T03:01:49.58
IV.FDMO.HHE. ML:1.4 0.00008499999999999999 0.54 AML other m 2023-08-13T03:01:49.59
IV.RM33.EHE. ML:1.4 0.00008205 1.1 AML other m 2023-08-13T03:01:50.63
IV.RM33.EHN. ML:1.3 0.0000628 0.14 AML other m 2023-08-13T03:01:50.72
IV.GIGS.HHE. ML:0.8 0.00002215 0.84 AML other m 2023-08-13T03:01:51.00
IV.LNSS.HHN. ML:1.4 0.00007325 0.36 AML other m 2023-08-13T03:01:51.32
IV.LNSS.HHE. ML:1.4 0.00008525 0.84 AML other m 2023-08-13T03:01:51.84
IV.GIGS.HHN. ML:0.8 0.0000211 0.24 AML other m 2023-08-13T03:01:51.54
IV.CSP1.EHN. ML:1.4 0.00009470000000000001 0.38 AML other m 2023-08-13T03:01:51.37
IV.MML1.EHE. ML:1.1 0.000030350000000000002 1.58 AML other m 2023-08-13T03:01:53.04
IV.MML1.EHN. ML:1.3 0.0000563 0.18 AML other m 2023-08-13T03:01:53.01
IV.ARRO.EHN. ML:1.0 0.00001875 0.18 AML other m 2023-08-13T03:01:58.80
IV.ARRO.EHE. ML:1.0 0.00002075 0.82 AML other m 2023-08-13T03:01:58.39
IV.ASSB.HHE. ML:1.1 0.00001965 1.2 AML other m 2023-08-13T03:01:59.09
IV.ASSB.HHN. ML:1.2 0.0000238 0.22 AML other m 2023-08-13T03:01:59.09
IV.MOMA.HHE. ML:0.0 0.000041349999999999995 0.24 AML other m 2023-08-13T03:01:59.21
IV.MOMA.HHN. ML:0.0 0.0000297 0.3 AML other m 2023-08-13T03:01:59.77
IV.T0110.HHN. ML:0.0 0.0000408 1.08 AML other m 2023-08-13T03:02:01.78
IV.ATCC.EHN. ML:1.0 0.00001715 1.5 AML other m 2023-08-13T03:02:02.82
IV.T0110.HHE. ML:0.0 0.0000388 0.42 AML other m 2023-08-13T03:02:02.66
IV.ARVD.HHN. ML:0.9 0.000008 0.42 AML other m 2023-08-13T03:02:04.59
IV.ATCC.EHE. ML:1.0 0.00001585 1.32 AML other m 2023-08-13T03:02:05.19
IV.ARVD.HHE. ML:0.6 0.00000734 0.44 AML other m 2023-08-13T03:02:08.66
IV.TERO.HNE. ML:0.9 0.00003774965999999999 0.8 AML other m 2023-08-13T03:01:47.70
IV.TERO.HNN. ML:1.3 0.000093911175 0.0704 AML other m 2023-08-13T03:01:47.31
IV.MNTT.EHE. ML:1.4 0.00008753902999999999 0.52 AML other m 2023-08-13T03:01:59.11
IV.MNTT.EHN. ML:1.4 0.00009786274 0.5392 AML other m 2023-08-13T03:01:52.23
IV.RM33.HNE. ML:1.5 0.00009923746 1.4496 AML other m 2023-08-13T03:01:49.97
IV.FOSV.EHE. ML:0.8 0.0000083972765 0.28 AML other m 2023-08-13T03:02:03.68
IV.FOSV.EHN. ML:1.0 0.000015038655 0.24 AML other m 2023-08-13T03:02:01.16
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