Earthquake with magnitude of ML 0.8 on date 18-04-2023 and time 05:29:37 (Italy) in region 3 km SW Cagli (PU)

A magnitude ML 0.8 earthquake occured in region: 3 km SW Cagli (PU), on

  • 18-04-2023 03:29:37 (UTC)
  • 18-04-2023 05:29:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5330, 12.6220 at 14 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
Cagli PU 3 8731 8731
Cantiano PU 7 2245 10976
Frontone PU 10 1300 12276
Acqualagna PU 10 4393 16669
Piobbico PU 11 2029 18698
Serra Sant'Abbondio PU 13 1027 19725
Scheggia e Pascelupo PG 15 1393 21118
Fermignano PU 16 8596 29714
Apecchio PU 17 1882 31596
Urbania PU 17 7099 38695
Pergola PU 18 6333 45028
Pietralunga PG 18 2111 47139

Municipalities with at least 50000 inhabitants

An earthquake occurred to
47 Km SW of Fano (60888 inhabitants)
48 Km SW of Pesaro (94582 inhabitants)
51 Km NE of Perugia (166134 inhabitants)
59 Km S of Rimini (147750 inhabitants)
60 Km E of Arezzo (99543 inhabitants)
64 Km N of Foligno (57155 inhabitants)
73 Km W of Ancona (100861 inhabitants)
74 Km SE of Cesena (96758 inhabitants)
90 Km SE of Forlì (117913 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 0.8 2023-04-18
03:29:37
43.5327 12.6215 14 2023-04-18
03:49:05
Sala Sismica INGV-Roma 116477061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-18 03:29:37 ± 0.09
Latitude 43.5327 ± 0.0018
Longitude 12.6215 ± 0.0037
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 116477061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 132
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
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) 0.05
Epicentral distance of station closest to the epicenter (degree) 0.06295
Epicentral distance of station farthest from the epicenter (degree) 0.15109
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 116477061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-18 03:49:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MPAG.EHZ. 2023-04-18T03:29:44.00 0.6 undecidable manual S 46 15.3735 117 -0.03 49
IV.SSFR.HHZ. 2023-04-18T03:29:44.34 0.6 undecidable manual S 130 16.7721 114 -0.02 49
IV.PIEI.HHZ. 2023-04-18T03:29:42.33 0.6 undecidable manual S 273 6.993 146 0 50
IV.NARO.HHZ. 2023-04-18T03:29:42.65 0.1 undecidable manual S 339 9.2796 137 -0.06 99
IV.FRON.EHZ. 2023-04-18T03:29:42.62 0.6 undecidable manual S 101 8.5803 140 0.04 50
IV.SSFR.HHZ. 2023-04-18T03:29:41.25 0.6 undecidable manual P 130 16.7721 114 -0.11 48
IV.MPAG.EHZ. 2023-04-18T03:29:41.26 0.6 undecidable manual P 46 15.3735 117 0.09 48
IV.PIEI.HHZ. 2023-04-18T03:29:40.20 0.1 undecidable manual P 273 6.993 146 0.02 100
IV.NARO.HHZ. 2023-04-18T03:29:40.37 1.0 undecidable manual P 339 9.2796 137 -0.03 25
IV.FRON.EHZ. 2023-04-18T03:29:40.39 1.0 negative manual P 101 8.5803 140 0.06 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHN. ML:0.8 0.00004415 0.38 AML other m 2023-04-18T03:29:44.62
IV.SSFR.HHE. ML:0.8 0.00004654999999999999 1.18 AML other m 2023-04-18T03:29:45.74
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