Earthquake with magnitude of ML 1.0 on date 15-05-2023 and time 08:03:03 (UTC) in region 4 km E L'Aquila (AQ)

A magnitude ML 1.0 earthquake occured in region: 4 km E L'Aquila (AQ), on

  • 15-05-2023 08:03:03 (UTC)
  • 15-05-2023 10:03:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.3660, 13.4500 at 16 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
L'Aquila AQ 4 69753 69753
Fossa AQ 9 721 70474
Poggio Picenze AQ 9 1136 71610
Ocre AQ 9 1167 72777
Sant'Eusanio Forconese AQ 11 394 73171
Lucoli AQ 12 1011 74182
Barisciano AQ 12 1828 76010
San Demetrio ne' Vestini AQ 12 1854 77864
Villa Sant'Angelo AQ 13 424 78288
Rocca di Cambio AQ 15 533 78821
Tornimparte AQ 15 3187 82008
Pizzoli AQ 15 4326 86334
Scoppito AQ 16 3727 90061
Prata d'Ansidonia AQ 16 496 90557
Fagnano Alto AQ 16 418 90975
Santo Stefano di Sessanio AQ 16 111 91086
Barete AQ 17 737 91823
Rocca di Mezzo AQ 18 1526 93349
San Pio delle Camere AQ 19 661 94010
Pietracamela TE 20 271 94281
Fontecchio AQ 20 369 94650

Municipalities with at least 50000 inhabitants

An earthquake occurred to
4 Km E of L'Aquila (69753 inhabitants)
39 Km SW of Teramo (54892 inhabitants)
59 Km W of Chieti (51815 inhabitants)
60 Km W of Montesilvano (53738 inhabitants)
64 Km W of Pescara (121014 inhabitants)
69 Km E of Terni (111501 inhabitants)
70 Km NE of Tivoli (56533 inhabitants)
72 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km SE of Foligno (57155 inhabitants)
94 Km NE of Velletri (53303 inhabitants)
95 Km NE of Roma (2864731 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 1.0 2023-05-15
08:03:03
42.3658 13.4502 16 2023-05-15
08:18:07
Sala Sismica INGV-Roma 117374171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-15 08:03:03 ± 0.13
Latitude 42.3658 ± 0.0063
Longitude 13.4502 ± 0.0061
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117374171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 572
Semi-minor axis of confidence ellipse (meter) 552
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 162
Circular confidence region, given by single value of horizontal uncertainty (meter) 570.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52880
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 117374171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-15 08:18:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HHZ. 2023-05-15T08:03:24.43 3.0 positive manual P 0.16 0
IV.NRCA.HHZ. 2023-05-15T08:03:21.56 0.3 undecidable manual S 332 58.6968 96 0.35 74
IV.NRCA.HHZ. 2023-05-15T08:03:13.17 0.1 undecidable manual P 332 58.6968 96 -0.35 100
IV.TERO.HHZ. 2023-05-15T08:03:13.82 0.3 undecidable manual S 24 31.1466 105 -0.15 82
IV.T0110.HHZ. 2023-05-15T08:03:13.87 0.3 undecidable manual S 119 30.747 105 0 84
IV.T0110.HHZ. 2023-05-15T08:03:09.03 1.0 negative manual P 119 30.747 105 -0.25 27
IV.GIGS.HHZ. 2023-05-15T08:03:09.90 0.6 undecidable manual S 46 13.9749 131 0.05 57
IV.VCEL.EHN. 2023-05-15T08:03:09.60 0.3 undecidable manual P 84 32.1456 104 0.11 83
IV.SMA1.EHZ. 2023-05-15T08:03:09.20 0.6 positive manual P 342 30.8469 105 -0.09 55
IV.TERO.HHZ. 2023-05-15T08:03:09.24 0.6 positive manual P 24 31.1466 105 -0.1 55
IV.RM33.EHZ. 2023-05-15T08:03:08.47 1.0 undecidable manual P 310 24.9528 111 0.03 28
MN.AQU.HNN. 2023-05-15T08:03:08.27 0.6 undecidable manual S 251 3.8961 164 -0.1 57
IV.FAGN.HHZ. 2023-05-15T08:03:07.43 0.6 undecidable manual P 135 15.5733 127 0.27 55
IV.CAMP.HHE. 2023-05-15T08:03:07.82 0.3 undecidable manual P 350 19.1697 119 0.2 82
MN.AQU.HNN. 2023-05-15T08:03:06.08 1.0 undecidable manual P 251 3.8961 164 -0.03 29
IV.GIGS.HHZ. 2023-05-15T08:03:06.98 0.6 negative manual P 46 13.9749 131 0.02 58
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIGS.HHN. ML:0.9 0.0000629 0.2 AML other m 2023-05-15T08:03:10.01
IV.GIGS.HHE. ML:0.8 0.000044899999999999994 1.58 AML other m 2023-05-15T08:03:10.06
IV.TERO.HHN. ML:1.1 0.0000497 1.74 AML other m 2023-05-15T08:03:14.04
IV.T0110.HHN. ML:1.2 0.00006736935499999999 0.2368 AML other m 2023-05-15T08:03:14.16
IV.TERO.HHE. ML:1.0 0.00004513916 0.0832 AML other m 2023-05-15T08:03:14.04
IV.T0110.HHE. ML:1.2 0.00007073382 0.1344 AML other m 2023-05-15T08:03:15.52
IV.NRCA.HHE. ML:1.1 0.000023226675 0.1408 AML other m 2023-05-15T08:03:21.68
IV.NRCA.HHN. ML:0.9 0.000013960838 0.16 AML other m 2023-05-15T08:03:22.43
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