Earthquake with magnitude of ML 0.3 on date 22-08-2023 and time 20:02:11 (UTC) in region 4 km N Costacciaro (PG)

A magnitude ML 0.3 earthquake occured in region: 4 km N Costacciaro (PG), on

  • 22-08-2023 20:02:11 (UTC)
  • 22-08-2023 22:02:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3960, 12.7200 at 11 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
Costacciaro PG 4 1216 1216
Scheggia e Pascelupo PG 4 1393 2609
Sigillo PG 7 2404 5013
Serra Sant'Abbondio PU 12 1027 6040
Cantiano PU 12 2245 8285
Fossato di Vico PG 12 2840 11125
Sassoferrato AN 12 7285 18410
Gubbio PG 12 32216 50626
Frontone PU 13 1300 51926
Fabriano AN 16 31480 83406
Cagli PU 18 8731 92137
Genga AN 18 1797 93934
Gualdo Tadino PG 19 15208 109142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km NE of Perugia (166134 inhabitants)
49 Km N of Foligno (57155 inhabitants)
55 Km SW of Fano (60888 inhabitants)
59 Km S of Pesaro (94582 inhabitants)
68 Km E of Arezzo (99543 inhabitants)
69 Km W of Ancona (100861 inhabitants)
75 Km S of Rimini (147750 inhabitants)
91 Km SE of Cesena (96758 inhabitants)
93 Km N of Terni (111501 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 0.3 2023-08-22
20:02:11
43.3958 12.7202 11 2023-08-22
20:06:37
Sala Sismica INGV-Roma 120392001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-22 20:02:11 ± 0.08
Latitude 43.3958 ± 0.0045
Longitude 12.7202 ± 0.0111
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120392001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 947
Semi-minor axis of confidence ellipse (meter) 427
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 84
Circular confidence region, given by single value of horizontal uncertainty (meter) 950.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.23742
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 120392001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-22 20:06:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2023-08-22T20:02:21.06 0.3 undecidable manual S 335 26.3514 50 0.11 72
IV.PIEI.HHZ. 2023-08-22T20:02:19.84 0.3 undecidable manual S 316 21.5673 50 0.19 72
IV.FOSV.EHZ. 2023-08-22T20:02:17.14 0.1 undecidable manual S 163 11.6772 133 0.12 99
IV.FRON.EHZ. 2023-08-22T20:02:17.52 0.3 undecidable manual S 2 13.5753 129 0.02 75
IV.PIEI.HHZ. 2023-08-22T20:02:16.20 0.1 undecidable manual P 316 21.5673 50 0.02 99
IV.NARO.HHZ. 2023-08-22T20:02:16.79 0.1 undecidable manual P 335 26.3514 50 -0.14 96
IV.ARVD.HHZ. 2023-08-22T20:02:15.89 0.6 negative manual P -0.23 0.8
IV.FRON.EHZ. 2023-08-22T20:02:15.00 0.1 undecidable manual P 2 13.5753 129 0.05 100
IV.FOSV.EHZ. 2023-08-22T20:02:14.73 0.1 undecidable manual P 163 11.6772 133 0.06 100
IV.ATFO.HHZ. 2023-08-22T20:02:14.33 0.6 negative manual P -0.34 0.8
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHE. ML:0.4 0.000025694145 0.0768 AML other m 2023-08-22T20:02:17.27
IV.FOSV.EHN. ML:0.5 0.00003393101 0.1408 AML other m 2023-08-22T20:02:17.35
IV.FRON.EHE. ML:0.4 0.000025396495 0.0896 AML other m 2023-08-22T20:02:17.81
IV.FRON.EHN. ML:0.5 0.000028630944999999997 0.0768 AML other m 2023-08-22T20:02:18.18
IV.PIEI.HHE. ML:0.5 0.000020164999999999998 0.0768 AML other m 2023-08-22T20:02:20.19
IV.PIEI.HHN. ML:-0.1 0.000007476031 0.0896 AML other m 2023-08-22T20:02:20.66
IV.NARO.HHE. ML:0.3 0.000007595273499999999 0.0768 AML other m 2023-08-22T20:02:21.40
IV.NARO.HHN. ML:0.0 0.00000571040235 0.0512 AML other m 2023-08-22T20:02:22.93
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