Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 02-05-2023 and time 05:56:29 (UTC) in region 4 km N Acquasanta Terme (AP)

A magnitude ML 1.7 earthquake occured in region: 4 km N Acquasanta Terme (AP), on

  • 02-05-2023 05:56:29 (UTC)
  • 02-05-2023 07:56:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8080, 13.4110 at 18 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 4 2916 2916
Montegallo AP 7 523 3439
Roccafluvione AP 8 2010 5449
Arquata del Tronto AP 10 1178 6627
Venarotta AP 11 2066 8693
Valle Castellana TE 11 977 9670
Palmiano AP 11 196 9866
Montemonaco AP 12 604 10470
Ascoli Piceno AP 15 49407 59877
Montefortino FM 16 1178 61055
Rocca Santa Maria TE 17 537 61592
Comunanza AP 17 3166 64758
Accumoli RI 18 667 65425
Folignano AP 18 9241 74666
Force AP 19 1354 76020
Amandola FM 20 3629 79649

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 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)
76 Km NW of Pescara (121014 inhabitants)
80 Km NW of Chieti (51815 inhabitants)
90 Km E of Perugia (166134 inhabitants)
91 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 1.7 2023-05-02
05:56:29		 42.8077 13.4108 18 2023-05-02
06:20:35		 Sala Sismica INGV-Roma 116952531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-02 05:56:29 ± 0.12
Latitude 42.8077 ± 0.0036
Longitude 13.4108 ± 0.0061
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116952531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 508
Semi-minor axis of confidence ellipse (meter) 91
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 67
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.34084
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:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 116952531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-02 06:20:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HHZ. 2023-05-02T05:56:50.92 3.0 undecidable manual S -0.72 0
IV.LNSS.HHZ. 2023-05-02T05:56:43.19 0.3 undecidable manual S 233 37.8288 105 0.53 65
IV.MOMA.HHZ. 2023-05-02T05:56:42.22 3.0 negative manual P 0.28 0
IV.FDMO.HHZ. 2023-05-02T05:56:42.19 0.3 undecidable manual S 314 36.5412 106 -0.15 70
IV.CSP1.EHZ. 2023-05-02T05:56:42.15 0.3 undecidable manual S 332 35.742 107 0.03 71
IV.MNTT.EHZ. 2023-05-02T05:56:41.89 0.6 undecidable manual S 28 31.9458 109 0.72 38
IV.ASSB.HHZ. 2023-05-02T05:56:41.46 3.0 undecidable manual P -0.16 0
IV.CING.HHZ. 2023-05-02T05:56:41.66 3.0 undecidable manual P 0.05 0
IV.GUMA.HHZ. 2023-05-02T05:56:40.78 0.3 undecidable manual S 348 28.9488 112 0.36 67
IV.NRCA.HHZ. 2023-05-02T05:56:39.43 0.3 undecidable manual S 277 24.2535 117 0.14 72
IV.TERO.HHZ. 2023-05-02T05:56:39.54 0.3 undecidable manual S 142 25.8519 115 -0.12 71
IV.MF5.EHZ. 2023-05-02T05:56:38.86 0.3 undecidable manual S 11 20.3685 123 0.48 65
IV.MML1.EHZ. 2023-05-02T05:56:38.09 3.0 undecidable manual P -0.79 0
IV.SMA1.EHZ. 2023-05-02T05:56:38.56 0.3 undecidable manual S 197 20.5683 122 0.14 73
IV.CESI.HHZ. 2023-05-02T05:56:38.38 3.0 negative manual P -0.04 0
IV.GAVE.EHZ. 2023-05-02T05:56:38.28 3.0 positive manual P 0.26 0
IV.LNSS.HHZ. 2023-05-02T05:56:37.22 0.1 undecidable manual P 233 37.8288 105 -0.03 94
IV.GIGS.HHZ. 2023-05-02T05:56:37.37 3.0 undecidable manual P -0.65 0
IV.RM33.EHZ. 2023-05-02T05:56:37.06 3.0 positive manual P -0.01 0
7F.SIB3.EHZ. 2023-05-02T05:56:37.08 0.3 undecidable manual S 303 13.6752 136 0.09 74
IV.FDMO.HHZ. 2023-05-02T05:56:36.52 0.3 undecidable manual P 314 36.5412 106 -0.54 64
IV.CSP1.EHZ. 2023-05-02T05:56:36.58 0.1 undecidable manual P 332 35.742 107 -0.36 90
IV.ASCOL.HNE. 2023-05-02T05:56:36.79 0.3 undecidable manual S 72 15.3735 132 -0.52 68
IV.CAMP.HHZ. 2023-05-02T05:56:36.08 3.0 positive manual P -0.12 0
IV.MNTT.EHZ. 2023-05-02T05:56:36.75 0.1 undecidable manual P 28 31.9458 109 0.36 88
7F.SIB2.EHZ. 2023-05-02T05:56:36.70 0.3 undecidable manual S 317 12.6762 139 -0.12 73
IV.MTRA.EHZ. 2023-05-02T05:56:36.15 0.3 undecidable manual S 192 5.7942 159 0.3 72
IV.MMO1.EHZ. 2023-05-02T05:56:36.68 0.3 undecidable manual S 326 12.2766 140 -0.06 74
IV.NRCA.HHZ. 2023-05-02T05:56:35.21 0.1 positive manual P 277 24.2535 117 -0.09 95
IV.TERO.HHZ. 2023-05-02T05:56:35.44 0.1 undecidable manual P 142 25.8519 115 -0.08 96
IV.GUMA.HHZ. 2023-05-02T05:56:35.93 0.3 undecidable manual P 348 28.9488 112 -0.03 73
IV.OFFI.HHZ. 2023-05-02T05:56:35.92 0.3 undecidable manual P 58 26.4513 114 0.32 68
IV.MF5.EHZ. 2023-05-02T05:56:34.80 0.1 undecidable manual P 11 20.3685 123 0.03 97
IV.SMA1.EHZ. 2023-05-02T05:56:34.93 0.1 positive manual P 197 20.5683 122 0.13 97
IV.MTRA.EHZ. 2023-05-02T05:56:33.39 0.1 undecidable manual P 192 5.7942 159 0.07 100
7F.SIB3.EHZ. 2023-05-02T05:56:33.86 0.1 undecidable manual P 303 13.6752 136 -0.12 97
IV.MMO1.EHZ. 2023-05-02T05:56:33.67 0.1 undecidable manual P 326 12.2766 140 -0.16 97
IV.ASCOL.HNE. 2023-05-02T05:56:33.59 0.3 undecidable manual P 72 15.3735 132 -0.57 67
7F.SIB2.EHZ. 2023-05-02T05:56:33.69 0.1 undecidable manual P 317 12.6762 139 -0.19 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHE. ML:1.9 0.00079332035 0.1408 AML other m 2023-05-02T05:56:36.29
IV.MTRA.EHN. ML:1.8 0.00059556595 0.0608 AML other m 2023-05-02T05:56:36.28
IV.MTRA.HNN. ML:1.8 0.00060038295 0.0608 AML other m 2023-05-02T05:56:36.28
IV.MTRA.HNE. ML:1.9 0.00076770335 0.1408 AML other m 2023-05-02T05:56:36.29
IV.MMO1.EHN. ML:1.8 0.00042915455000000003 0.08 AML other m 2023-05-02T05:56:36.86
IV.MMO1.EHE. ML:1.6 0.00027023469999999997 0.16 AML other m 2023-05-02T05:56:37.57
IV.CAMP.HHN. ML:1.7 0.000228 0.28 AML other m 2023-05-02T05:56:41.28
IV.TERO.HHN. ML:1.5 0.00015157495 0.08 AML other m 2023-05-02T05:56:40.60
IV.TERO.HHE. ML:1.3 0.000100310125 0.0608 AML other m 2023-05-02T05:56:40.74
IV.CAMP.HHE. ML:1.5 0.000132576935 0.16 AML other m 2023-05-02T05:56:41.45
IV.FDMO.HHE. ML:1.6 0.000141 0.22 AML other m 2023-05-02T05:56:42.68
IV.FDMO.HHN. ML:1.5 0.00011240863000000002 0.2208 AML other m 2023-05-02T05:56:42.59
IV.RM33.EHN. ML:1.4 0.00009529241499999999 0.16 AML other m 2023-05-02T05:56:44.33
IV.MNTT.EHE. ML:1.6 0.00017705943999999998 0.16 AML other m 2023-05-02T05:56:42.72
IV.LNSS.HHE. ML:2.1 0.00043300000000000006 0.22 AML other m 2023-05-02T05:56:43.40
IV.LNSS.HHN. ML:2.1 0.000451 0.22 AML other m 2023-05-02T05:56:43.69
IV.RM33.EHE. ML:1.7 0.00016241715 0.16 AML other m 2023-05-02T05:56:43.59
IV.GAVE.HNN. ML:1.8 0.00019700000000000002 0.24 AML other m 2023-05-02T05:56:45.40
IV.GAVE.EHN. ML:2.2 0.0004685 0.22 AML other m 2023-05-02T05:56:45.30
IV.GAVE.EHE. ML:2.2 0.0004325 1.82 AML other m 2023-05-02T05:56:46.96
IV.GAVE.HNE. ML:2.2 0.0004365 1.8 AML other m 2023-05-02T05:56:46.95
IV.MNTT.EHN. ML:1.8 0.00026226165 0.2624 AML other m 2023-05-02T05:56:45.69
IV.MF5.EHE. ML:1.7 0.0002839799 0.2016 AML other m 2023-05-02T05:56:39.43
IV.MF5.EHN. ML:1.5 0.0001885326 0.2208 AML other m 2023-05-02T05:56:38.97
IV.TERO.HNE. ML:1.3 0.00010546177000000001 0.0992 AML other m 2023-05-02T05:56:39.98
IV.TERO.HNN. ML:1.6 0.0001750654815 0.08 AML other m 2023-05-02T05:56:40.61
IV.GUMA.HHN. ML:1.7 0.0002366008 0.2208 AML other m 2023-05-02T05:56:42.09
IV.GUMA.HNE. ML:1.7 0.00023546519999999998 0.2304 AML other m 2023-05-02T05:56:41.32
IV.GUMA.HNN. ML:1.5 0.00012354505 0.1184 AML other m 2023-05-02T05:56:41.76
IV.GUMA.HHE. ML:1.7 0.00019839985 0.1184 AML other m 2023-05-02T05:56:41.22
IV.CSP1.EHN. ML:1.7 0.000171714435 0.24 AML other m 2023-05-02T05:56:42.42
IV.CSP1.EHE. ML:1.8 0.0002472682 0.2208 AML other m 2023-05-02T05:56:42.47
IV.RM33.HNE. ML:1.8 0.00021591975000000003 0.2784 AML other m 2023-05-02T05:56:43.80
IV.RM33.HNN. ML:1.5 0.000114510565 0.1696 AML other m 2023-05-02T05:56:44.40
IV.LNSS.HNN. ML:2.1 0.00041976965 0.208 AML other m 2023-05-02T05:56:43.69
IV.LNSS.HNE. ML:2.1 0.00042089330000000003 0.2304 AML other m 2023-05-02T05:56:43.52
IV.MML1.EHN. ML:1.4 0.00006599456 0.1408 AML other m 2023-05-02T05:56:46.29
IV.MML1.EHE. ML:1.3 0.000055336419999999996 0.1184 AML other m 2023-05-02T05:56:46.87
IV.CESI.HHN. ML:1.6 0.00010659237499999999 0.1024 AML other m 2023-05-02T05:56:45.94
IV.CESI.HHE. ML:1.4 0.00006907852 0.1408 AML other m 2023-05-02T05:56:45.45
IV.ASSB.HHN. ML:1.4 0.000039605849999999996 0.24 AML other m 2023-05-02T05:56:51.25
IV.ASSB.HHE. ML:1.2 0.000031540560000000005 0.16 AML other m 2023-05-02T05:56:51.51
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