Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 05-12-2023 and time 06:51:28 (Italy) in region 2 km S Frontone (PU)

A magnitude ML 0.8 earthquake occured in region: 2 km S Frontone (PU), on

  • 05-12-2023 05:51:28 (UTC)
  • 05-12-2023 06:51:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4940, 12.7370 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Frontone PU 3 1300 1300
Serra Sant'Abbondio PU 3 1027 2327
Cantiano PU 9 2245 4572
Cagli PU 9 8731 13303
Pergola PU 11 6333 19636
Scheggia e Pascelupo PG 11 1393 21029
Sassoferrato AN 12 7285 28314
Acqualagna PU 15 4393 32707
Costacciaro PG 15 1216 33923
Arcevia AN 16 4612 38535
Genga AN 18 1797 40332
Sigillo PG 18 2404 42736
Gubbio PG 20 32216 74952

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km SW of Fano (60888 inhabitants)
49 Km SW of Pesaro (94582 inhabitants)
51 Km NE of Perugia (166134 inhabitants)
60 Km N of Foligno (57155 inhabitants)
65 Km W of Ancona (100861 inhabitants)
65 Km S of Rimini (147750 inhabitants)
69 Km E of Arezzo (99543 inhabitants)
82 Km SE of Cesena (96758 inhabitants)
99 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 2023-12-05
05:51:28		 43.4935 12.7372 14 2023-12-05
06:03:24		 Sala Sismica INGV-Roma 123824591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-05 05:51:28 ± 0.05
Latitude 43.4935 ± 0.0018
Longitude 12.7372 ± 0.0037
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123824591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 254
Semi-minor axis of confidence ellipse (meter) 116
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
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 22
Number of defining phases 12
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.16278
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 6
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 123824591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-05 06:03:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.BHB.HHZ. 2023-12-05T05:53:14.24 3.0 undecidable manual Sn 0.4 0
IV.GALF.HHZ. 2023-12-05T05:53:09.51 3.0 positive manual Pg 19.879999 0
IV.GIB.HHZ. 2023-12-05T05:53:03.41 3.0 negative manual Pg 18.200001 0
IV.PTRP.HHZ. 2023-12-05T05:52:58.33 3.0 undecidable manual Sn -6.29 0
GU.SATI.HHZ. 2023-12-05T05:52:38.51 3.0 positive manual Pg 18.049999 0
IV.SGO.HHZ. 2023-12-05T05:52:16.65 3.0 undecidable manual Pn 3.16 0
IV.CSNT.HHZ. 2023-12-05T05:52:05.16 3.0 undecidable manual Sn -0.02 0
IV.GIUL.HHZ. 2023-12-05T05:51:52.91 3.0 positive manual Pn -3.17 0
MN.TRI.HHZ. 2023-12-05T05:51:43.77 3.0 positive manual Pn 0 0
IV.NARO.HHZ. 2023-12-05T05:51:36.49 0.6 undecidable manual S 316 18.0708 112 0.05 48
IV.PIEI.HHZ. 2023-12-05T05:51:36.13 0.6 undecidable manual S 286 16.9719 114 -0.01 49
IV.MPAG.EHZ. 2023-12-05T05:51:35.75 0.6 undecidable manual S 7 15.1737 119 0.03 49
IV.CADA.HNZ. 2023-12-05T05:51:34.07 3.0 undecidable manual P -0.07 0
IV.SSFR.HHZ. 2023-12-05T05:51:34.03 0.6 undecidable manual S 150 7.2927 145 -0.12 49
IV.ATSC.EHE. 2023-12-05T05:51:34.43 0.6 undecidable manual S 208 8.6802 140 0.05 49
IV.FRON.EHZ. 2023-12-05T05:51:33.64 0.6 undecidable manual S 341 2.8971 166 -0.02 50
IV.PIEI.HHZ. 2023-12-05T05:51:33.05 0.1 undecidable manual P 286 16.9719 114 -0.07 97
IV.NARO.HHZ. 2023-12-05T05:51:33.26 0.1 undecidable manual P 316 18.0708 112 -0.03 97
IV.ATSC.EHE. 2023-12-05T05:51:32.16 0.1 undecidable manual P 208 8.6802 140 0.06 98
IV.MPAG.EHZ. 2023-12-05T05:51:32.89 0.1 undecidable manual P 7 15.1737 119 0.01 98
IV.SSFR.HHZ. 2023-12-05T05:51:31.99 0.3 negative manual P 150 7.2927 145 0.02 75
IV.FRON.EHZ. 2023-12-05T05:51:31.70 0.1 undecidable manual P 341 2.8971 166 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:0.8 0.00008299999999999998 0.08 AML other m 2023-12-05T05:51:33.69
IV.FRON.EHN. ML:0.8 0.00008205 0.5 AML other m 2023-12-05T05:51:33.98
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