Earthquake with magnitude of ML 1.0 on date 23-05-2023 and time 09:20:28 (UTC) in region 6 km NE Costacciaro (PG)

A magnitude ML 1.0 earthquake occured in region: 6 km NE Costacciaro (PG), on

  • 23-05-2023 09:20:28 (UTC)
  • 23-05-2023 11:20:28 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4000, 12.7720 at 13 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 7 1216 1216
Sigillo PG 8 2404 3620
Sassoferrato AN 8 7285 10905
Scheggia e Pascelupo PG 8 1393 12298
Serra Sant'Abbondio PU 10 1027 13325
Fossato di Vico PG 12 2840 16165
Fabriano AN 13 31480 47645
Frontone PU 13 1300 48945
Genga AN 14 1797 50742
Cantiano PU 14 2245 52987
Gubbio PG 16 32216 85203
Arcevia AN 18 4612 89815
Gualdo Tadino PG 19 15208 105023
Pergola PU 19 6333 111356
Cagli PU 19 8731 120087
Cerreto d'Esi AN 19 3817 123904

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NE of Perugia (166134 inhabitants)
50 Km N of Foligno (57155 inhabitants)
53 Km SW of Fano (60888 inhabitants)
58 Km S of Pesaro (94582 inhabitants)
65 Km W of Ancona (100861 inhabitants)
72 Km E of Arezzo (99543 inhabitants)
75 Km S of Rimini (147750 inhabitants)
92 Km SE of Cesena (96758 inhabitants)
94 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 1.0 2023-05-23
09:20:28
43.3997 12.7715 13 2023-05-23
09:31:09
Sala Sismica INGV-Roma 117624081
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-23 09:20:28 ± 0.06
Latitude 43.3997 ± 0.0027
Longitude 12.7715 ± 0.0050
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117624081

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 49
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.25271
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
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 117624081
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-23 09:31:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2023-05-23T09:20:37.64 0.6 undecidable manual S 358 25.4523 98 0.14 48
IV.MURB.HHZ. 2023-05-23T09:20:37.63 0.6 undecidable manual S 233 25.0527 98 0.25 47
IV.PIEI.HHZ. 2023-05-23T09:20:36.97 0.3 undecidable manual S 308 24.2535 99 -0.22 70
IV.FRON.EHZ. 2023-05-23T09:20:34.39 0.3 undecidable manual S 344 13.5753 118 -0.07 74
IV.MURB.HHZ. 2023-05-23T09:20:33.76 0.6 undecidable manual P 233 25.0527 98 0.26 47
IV.NARO.HHZ. 2023-05-23T09:20:33.96 0.6 undecidable manual P 327 28.0497 97 0 49
IV.ATSC.EHZ. 2023-05-23T09:20:33.19 0.6 undecidable manual S 292 7.3815 142 0.01 50
IV.PIEI.HHZ. 2023-05-23T09:20:33.33 0.3 negative manual P 308 24.2535 99 -0.06 73
IV.MPAG.EHZ. 2023-05-23T09:20:33.60 0.6 positive manual P 358 25.4523 98 0.03 49
IV.FOSV.HNZ. 2023-05-23T09:20:33.80 0.3 undecidable manual S 184 11.6772 125 -0.21 72
IV.ARVD.HHZ. 2023-05-23T09:20:32.38 0.3 undecidable manual P 51 17.4714 108 0.01 74
IV.ATFO.HHZ. 2023-05-23T09:20:32.22 0.3 undecidable manual P 257 16.5723 110 -0.01 74
IV.SSFR.HHZ. 2023-05-23T09:20:32.74 0.3 undecidable manual S 12 4.1958 157 -0.01 76
IV.ATBU.EHZ. 2023-05-23T09:20:32.90 0.6 undecidable manual P 295 19.869 104 0.18 48
IV.FOSV.HNZ. 2023-05-23T09:20:31.47 0.3 undecidable manual P 184 11.6772 125 -0.09 74
IV.FRON.EHZ. 2023-05-23T09:20:31.84 1.0 undecidable manual P 344 13.5753 118 0.02 25
IV.TSM1.DHZ. 2023-05-23T09:20:31.97 0.1 undecidable manual P 247 15.2736 113 -0.08 98
IV.ATSC.EHZ. 2023-05-23T09:20:31.14 0.1 undecidable manual P 292 7.3815 142 0.06 100
IV.SSFR.HHZ. 2023-05-23T09:20:30.92 0.6 undecidable manual P 12 4.1958 157 0.09 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHN. ML:0.9 0.0001122 0.08 AML other m 2023-05-23T09:20:33.00
IV.SSFR.HHE. ML:0.8 0.00008565000000000001 1.82 AML other m 2023-05-23T09:20:33.04
IV.FRON.EHE. ML:0.7 0.000051949999999999996 0.12 AML other m 2023-05-23T09:20:34.54
IV.FRON.EHN. ML:0.8 0.00006365000000000002 0.3 AML other m 2023-05-23T09:20:34.77
IV.MURB.HHN. ML:1.2 0.00007845 0.24 AML other m 2023-05-23T09:20:38.34
IV.MURB.HHE. ML:1.2 0.00008035 0.8 AML other m 2023-05-23T09:20:38.10
IV.SSFR.HNE. ML:1.1 0.000176653655 0.0512 AML other m 2023-05-23T09:20:33.10
IV.SSFR.HNN. ML:1.3 0.00024739565 0.0512 AML other m 2023-05-23T09:20:33.00
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