Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 28-05-2023 and time 14:56:26 (UTC) in region 6 km SW Ovindoli (AQ)

A magnitude ML 1.5 earthquake occured in region: 6 km SW Ovindoli (AQ), on

  • 28-05-2023 14:56:26 (UTC)
  • 28-05-2023 16:56:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.0890, 13.4720 at 10 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
Ovindoli AQ 6 1227 1227
Celano AQ 6 11017 12244
Massa d'Albe AQ 7 1476 13720
Avezzano AQ 7 42515 56235
Magliano de' Marsi AQ 9 3690 59925
Aielli AQ 10 1475 61400
Scurcola Marsicana AQ 11 2824 64224
Cerchio AQ 11 1635 65859
Collarmele AQ 13 894 66753
Rocca di Mezzo AQ 14 1526 68279
Luco dei Marsi AQ 14 6079 74358
Capistrello AQ 15 5252 79610
San Benedetto dei Marsi AQ 16 3909 83519
Trasacco AQ 16 6246 89765
Castellafiume AQ 16 1106 90871
Rocca di Cambio AQ 17 533 91404
Pescina AQ 17 4133 95537
Canistro AQ 17 995 96532
Tagliacozzo AQ 18 6889 103421
Cappadocia AQ 18 528 103949
Secinaro AQ 19 359 104308
Tione degli Abruzzi AQ 19 310 104618
Gagliano Aterno AQ 19 254 104872
Fontecchio AQ 20 369 105241
Civitella Roveto AQ 20 3268 108509

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km S of L'Aquila (69753 inhabitants)
57 Km E of Tivoli (56533 inhabitants)
62 Km E of Guidonia Montecelio (88673 inhabitants)
64 Km W of Chieti (51815 inhabitants)
66 Km S of Teramo (54892 inhabitants)
73 Km NE of Velletri (53303 inhabitants)
73 Km SW of Montesilvano (53738 inhabitants)
74 Km SW of Pescara (121014 inhabitants)
84 Km NE of Latina (125985 inhabitants)
85 Km E of Roma (2864731 inhabitants)
86 Km SE of Terni (111501 inhabitants)
88 Km NE of Aprilia (73446 inhabitants)
93 Km NE of Pomezia (62966 inhabitants)
100 Km NE of Anzio (54211 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 1.5 2023-05-28
14:56:26		 42.0893 13.472 10 2023-05-28
15:06:34		 Sala Sismica INGV-Roma 117817191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-28 14:56:26 ± 0.1
Latitude 42.0893 ± 0.0054
Longitude 13.4720 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117817191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 591
Semi-minor axis of confidence ellipse (meter) 545
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 135
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.46045
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 117817191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-28 15:06:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSRU.HHZ. 2023-05-28T14:58:12.57 3.0 undecidable manual Sn -5.95 0
IV.SPS2.HHZ. 2023-05-28T14:58:10.96 3.0 undecidable manual Sg 6.95 0
IV.GIZZ.HHZ. 2023-05-28T14:58:07.70 3.0 undecidable manual Sn -1.17 0
IV.SALB.HHZ. 2023-05-28T14:57:52.03 3.0 undecidable manual Sn -1.06 0
AC.KBN.HHZ. 2023-05-28T14:57:51.60 3.0 negative manual Pn 0.97 0
GU.RORO.HHZ. 2023-05-28T14:57:45.40 3.0 undecidable manual Pg 10.69 0
GU.GORR.HHZ. 2023-05-28T14:57:30.69 3.0 undecidable manual Pn 2.82 0
MN.SENA.HHZ. 2023-05-28T14:57:28.60 3.0 undecidable manual Pg 7.69 0
IV.PLAC.HNZ. 2023-05-28T14:57:28.31 3.0 undecidable manual Pn -3.12 0
IV.IFIL.HHZ. 2023-05-28T14:57:26.29 3.0 undecidable manual Pn 3.79 0
MN.TRI.HHZ. 2023-05-28T14:57:25.28 3.0 positive manual Pn 2.47 0
IV.RIBO.EHZ.01 2023-05-28T14:57:23.96 3.0 undecidable manual Sn -4.06 0
IV.CELB.HHZ. 2023-05-28T14:57:11.15 3.0 undecidable manual Pg 3.08 0
IV.BDI.HHZ. 2023-05-28T14:57:11.75 3.0 undecidable manual Pn -1.45 0
IV.MML1.EHZ. 2023-05-28T14:57:02.41 3.0 undecidable manual S -3.01 0
IV.RM33.EHZ. 2023-05-28T14:56:42.02 0.6 undecidable manual S 336 51.1155 50 -0.53 42
IV.POFI.HHZ. 2023-05-28T14:56:41.57 0.6 undecidable manual S 154 45.8208 50 0.45 43
IV.VCEL.EHZ. 2023-05-28T14:56:41.71 0.6 undecidable manual S 42 45.4212 50 0.69 40
IV.CAMP.HHZ. 2023-05-28T14:56:40.44 3.0 undecidable manual S -3.9 0
IV.GIGS.HHZ. 2023-05-28T14:56:40.32 0.6 undecidable manual S 12 41.2254 50 0.42 44
IV.GUAR.HHZ. 2023-05-28T14:56:38.18 0.6 undecidable manual S 202 35.2425 50 -0.14 47
IV.INTR.HHZ. 2023-05-28T14:56:38.67 0.3 undecidable manual S 103 36.6411 50 -0.02 72
IV.FIAM.HHZ. 2023-05-28T14:56:38.88 0.6 undecidable manual S 304 35.2425 50 0.56 43
IV.TERO.HHZ. 2023-05-28T14:56:37.17 3.0 undecidable manual P -0.73 0
IV.T0110.HHZ. 2023-05-28T14:56:36.85 0.3 undecidable manual S 58 29.4483 50 0.09 72
IV.GIUL.HHZ. 2023-05-28T14:56:36.82 3.0 undecidable manual P -1.57 0
IV.RM33.EHZ. 2023-05-28T14:56:35.40 1.0 negative manual P 336 51.1155 50 -0.28 22
IV.POFI.HHZ. 2023-05-28T14:56:34.79 0.6 positive manual P 154 45.8208 50 -0.07 47
IV.VCEL.EHZ. 2023-05-28T14:56:34.86 0.3 positive manual P 42 45.4212 50 0.06 71
IV.FIAM.HHZ. 2023-05-28T14:56:33.12 0.1 undecidable manual P 304 35.2425 50 -0.11 95
IV.GUAR.HHZ. 2023-05-28T14:56:33.18 0.3 undecidable manual P 202 35.2425 50 -0.06 72
IV.GIGS.HHZ. 2023-05-28T14:56:33.90 0.3 undecidable manual P 12 41.2254 50 -0.25 68
IV.INTR.HHZ. 2023-05-28T14:56:32.84 0.6 undecidable manual P 103 36.6411 50 -0.61 42
IV.T0110.HHZ. 2023-05-28T14:56:32.05 0.3 positive manual P 58 29.4483 50 -0.29 69
IV.PTQR.HHZ. 2023-05-28T14:56:31.34 0.3 undecidable manual S 218 9.4794 138 0.15 74
IV.PTQR.HHZ. 2023-05-28T14:56:29.20 0.1 undecidable manual P 218 9.4794 138 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTQR.HHN. ML:1.8 0.0008945000000000001 0.72 AML other m 2023-05-28T14:56:31.73
IV.PTQR.HHE. ML:1.6 0.000564 0.1 AML other m 2023-05-28T14:56:31.73
IV.T0110.HHN. ML:2.0 0.0004545 0.38 AML other m 2023-05-28T14:56:37.35
IV.T0110.HHE. ML:2.2 0.000867 0.26 AML other m 2023-05-28T14:56:37.49
IV.GUAR.HHE. ML:1.8 0.000231 0.34 AML other m 2023-05-28T14:56:38.57
IV.GUAR.HHN. ML:1.8 0.00023299999999999997 1.68 AML other m 2023-05-28T14:56:38.04
IV.GUAR.HNN. ML:1.7 0.000216 0.56 AML other m 2023-05-28T14:56:38.89
IV.GUAR.HNE. ML:1.9 0.000294 1.02 AML other m 2023-05-28T14:56:39.58
IV.INTR.HHE. ML:1.5 0.000115 1.4 AML other m 2023-05-28T14:56:39.94
IV.FIAM.HHN. ML:1.2 0.00006195 1.14 AML other m 2023-05-28T14:56:40.80
IV.FIAM.HHE. ML:1.1 0.000047799999999999996 0.24 AML other m 2023-05-28T14:56:41.20
IV.VCEL.EHE. ML:0.0 0.000279 0.32 AML other m 2023-05-28T14:56:42.71
IV.GIGS.HHN. ML:0.0 0.000044649999999999994 1.32 AML other m 2023-05-28T14:56:42.26
IV.POFI.HHE. ML:1.1 0.000037199999999999996 0.38 AML other m 2023-05-28T14:56:43.40
IV.GIGS.HHE. ML:0.0 0.00002913781 0.32 AML other m 2023-05-28T14:56:41.80
IV.VCEL.EHN. ML:0.0 0.000191 1 AML other m 2023-05-28T14:56:44.00
IV.INTR.HHN. ML:1.5 0.00011621345 0.4096 AML other m 2023-05-28T14:56:43.99
IV.POFI.HHN. ML:1.0 0.0000287 0.3 AML other m 2023-05-28T14:56:45.84
IV.GIUL.HHE. ML:1.2 0.0000305565 0.704 AML other m 2023-05-28T14:56:47.10
IV.RM33.EHN. ML:1.4 0.00006975 1.74 AML other m 2023-05-28T14:56:47.95
IV.CAMP.HHN. ML:1.4 0.0000655 0.52 AML other m 2023-05-28T14:56:47.68
IV.CAMP.HHE. ML:1.4 0.00006634999999999999 0.7 AML other m 2023-05-28T14:56:47.50
IV.RM33.EHE. ML:1.5 0.00007975 0.4 AML other m 2023-05-28T14:56:47.74
IV.TERO.HHE. ML:1.5 0.00006429999999999999 0.54 AML other m 2023-05-28T14:56:48.58
IV.TERO.HHN. ML:1.3 0.000040999999999999994 1.58 AML other m 2023-05-28T14:56:50.85
IV.GIUL.HHN. ML:1.2 0.000036 0.34 AML other m 2023-05-28T14:56:51.48
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