Earthquake with magnitude of ML 0.5 on date 23-05-2023 and time 22:27:35 (UTC) in region 9 km SE Capitignano (AQ)

A magnitude ML 0.5 earthquake occured in region: 9 km SE Capitignano (AQ), on

  • 23-05-2023 22:27:35 (UTC)
  • 24-05-2023 00:27:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4780, 13.3910 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Capitignano AQ 9 665 665
Pizzoli AQ 9 4326 4991
Campotosto AQ 9 542 5533
Barete AQ 9 737 6270
Crognaleto TE 11 1297 7567
Montereale AQ 13 2581 10148
Cagnano Amiterno AQ 14 1369 11517
L'Aquila AQ 14 69753 81270
Pietracamela TE 14 271 81541
Fano Adriano TE 15 296 81837
Scoppito AQ 16 3727 85564
Cortino TE 19 656 86220
Amatrice RI 19 2657 88877

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km N of L'Aquila (69753 inhabitants)
33 Km SW of Teramo (54892 inhabitants)
62 Km E of Terni (111501 inhabitants)
62 Km W of Montesilvano (53738 inhabitants)
65 Km W of Chieti (51815 inhabitants)
68 Km W of Pescara (121014 inhabitants)
75 Km NE of Tivoli (56533 inhabitants)
76 Km NE of Guidonia Montecelio (88673 inhabitants)
77 Km SE of Foligno (57155 inhabitants)
99 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 0.5 2023-05-23
22:27:35
42.478 13.3912 10 2023-05-23
22:36:31
Sala Sismica INGV-Roma 117652861
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-23 22:27:35 ± 0.23
Latitude 42.4780 ± 0.0144
Longitude 13.3912 ± 0.0085
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 117652861

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1510
Semi-minor axis of confidence ellipse (meter) 573
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 180
Circular confidence region, given by single value of horizontal uncertainty (meter) 1510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40919
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 117652861
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-23 22:36:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
7C.SPAOL.HNZ. 2023-05-23T22:28:51.63 3.0 negative manual Pg 31.17 0
GE.MATE.HHZ. 2023-05-23T22:28:46.77 3.0 undecidable manual Sn -0.35 0
OT.OT14.EHZ. 2023-05-23T22:28:31.03 3.0 undecidable manual Sg 0.18 0
GE.MATE.HHZ. 2023-05-23T22:28:15.26 3.0 positive manual Pg 8.79 0
IV.POFI.HHZ. 2023-05-23T22:27:55.90 3.0 undecidable manual Sg 0.23 0
OT.OT17.EHZ. 2023-05-23T22:27:52.60 3.0 undecidable manual P 0.69 0
IV.NRCA.HHZ. 2023-05-23T22:27:50.37 0.3 undecidable manual S 330 45.4212 50 0.03 71
IV.TERO.HHZ. 2023-05-23T22:27:44.42 0.3 undecidable manual S 47 23.6541 113 0.01 74
IV.NRCA.HHZ. 2023-05-23T22:27:43.89 0.1 undecidable manual P 330 45.4212 50 -0.17 92
IV.RM33.EHZ. 2023-05-23T22:27:41.74 0.3 undecidable manual S 283 14.874 124 0.04 75
IV.GIGS.HHZ. 2023-05-23T22:27:41.81 0.3 undecidable manual S 100 15.1737 123 0.03 75
IV.SMA1.EHZ. 2023-05-23T22:27:40.07 0.3 undecidable manual P 345 17.4714 120 0.53 67
IV.TERO.HHZ. 2023-05-23T22:27:40.75 0.6 negative manual P 47 23.6541 113 0.1 49
IV.GIGS.HHZ. 2023-05-23T22:27:39.28 0.3 undecidable manual P 100 15.1737 123 0.15 73
IV.RM33.EHZ. 2023-05-23T22:27:39.12 0.1 positive manual P 283 14.874 124 0.03 100
IV.CAMP.HHN. 2023-05-23T22:27:37.10 0.3 undecidable manual P 13 6.5934 147 -0.79 61
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:0.8 0.0000656 0.78 AML other m 2023-05-23T22:27:42.84
IV.GIGS.HHE. ML:0.0 0.0000102 0.42 AML other m 2023-05-23T22:27:42.64
IV.GIGS.HHN. ML:0.0 0.000009760000000000001 1.4 AML other m 2023-05-23T22:27:42.10
IV.RM33.EHE. ML:0.7 0.000049949999999999994 0.14 AML other m 2023-05-23T22:27:42.91
IV.SMA1.EHE. ML:0.5 0.000024500000000000003 1.8 AML other m 2023-05-23T22:27:45.94
IV.SMA1.EHN. ML:0.4 0.00002035 0.3 AML other m 2023-05-23T22:27:45.77
IV.NRCA.HHE. ML:0.8 0.0000194 0.98 AML other m 2023-05-23T22:27:51.60
IV.NRCA.HHN. ML:0.7 0.00001395 0.52 AML other m 2023-05-23T22:27:51.27
IV.TERO.HHE. ML:0.4 0.000014238049999999998 0.128 AML other m 2023-05-23T22:27:45.19
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