Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 09-12-2023 and time 02:34:48 (UTC) in region 5 km S Pietralunga (PG)

A magnitude ML 0.8 earthquake occured in region: 5 km S Pietralunga (PG), on

  • 09-12-2023 02:34:48 (UTC)
  • 09-12-2023 03:34:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3990, 12.4270 at 2 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
Pietralunga PG 5 2111 2111
Montone PG 9 1680 3791
Umbertide PG 13 16681 20472
Gubbio PG 13 32216 52688
Città di Castello PG 17 39913 92601
Apecchio PU 18 1882 94483
Cantiano PU 18 2245 96728
Scheggia e Pascelupo PG 20 1393 98121

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
54 Km NW of Foligno (57155 inhabitants)
69 Km SW of Fano (60888 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
75 Km S of Rimini (147750 inhabitants)
83 Km S of Cesena (96758 inhabitants)
89 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
95 Km N of Terni (111501 inhabitants)
97 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 2023-12-09
02:34:48		 43.399 12.4267 2 2023-12-09
02:47:30		 Sala Sismica INGV-Roma 123907621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-09 02:34:48 ± 0.06
Latitude 43.3990 ± 0.0018
Longitude 12.4267 ± 0.0025
Depth (km) 2 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 123907621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 240
Semi-minor axis of confidence ellipse (meter) 148
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 113
Circular confidence region, given by single value of horizontal uncertainty (meter) 240.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.01169
Epicentral distance of station farthest from the epicenter (degree) 0.24731
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 17
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 123907621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-09 02:47:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BADI.EHZ. 2023-12-09T02:34:55.22 0.6 undecidable manual S 310 19.1697 96 0.43 45
IV.ATMC.EHZ. 2023-12-09T02:34:55.00 0.6 undecidable manual S 286 19.5693 96 0.06 48
IV.MURB.HHZ. 2023-12-09T02:34:54.46 0.6 undecidable manual S 152 17.0718 97 0.39 45
IV.TSM5.DHZ. 2023-12-09T02:34:54.29 0.6 undecidable manual S 58 16.7721 97 0.32 46
IV.PIEI.HHZ. 2023-12-09T02:34:54.58 0.6 undecidable manual S 30 17.4714 97 0.36 45
IV.FRON.EHZ. 2023-12-09T02:34:53.93 1.0 undecidable manual P 61 27.4503 94 0.3 23
IV.NARO.HHZ. 2023-12-09T02:34:53.27 0.6 undecidable manual P 28 26.5512 95 -0.18 46
IV.ATSC.EHZ. 2023-12-09T02:34:52.28 0.1 undecidable manual P 82 21.1677 96 -0.08 96
IV.BADI.EHZ. 2023-12-09T02:34:52.00 1.0 negative manual P 310 19.1697 96 0.03 24
IV.PIEI.HHZ. 2023-12-09T02:34:51.50 0.6 undecidable manual P 30 17.4714 97 -0.14 48
IV.MURB.HHZ. 2023-12-09T02:34:51.33 0.6 negative manual P 152 17.0718 97 -0.22 47
IV.ATMC.EHZ. 2023-12-09T02:34:51.99 0.1 undecidable manual P 286 19.5693 96 -0.06 96
IV.TSM5.DHZ. 2023-12-09T02:34:51.32 0.1 undecidable manual P 58 16.7721 97 -0.17 94
IV.ATMI.HHZ. 2023-12-09T02:34:51.37 0.6 negative manual P 241 14.6742 98 0.29 46
IV.TSM6.DHZ. 2023-12-09T02:34:50.22 0.1 undecidable manual P 317 11.0778 101 -0.16 96
IV.ATPC.HNZ. 2023-12-09T02:34:50.03 0.1 undecidable manual P 15 9.3795 103 -0.01 99
IV.ATVO.HHZ. 2023-12-09T02:34:49.30 0.6 undecidable manual S 221 2.4975 131 0.06 50
IV.TB01.DHZ. 2023-12-09T02:34:49.21 0.6 undecidable manual S 159 2.0979 136 0.07 49
IV.TB02.DHZ. 2023-12-09T02:34:49.65 0.6 undecidable manual S 204 3.4965 122 0.13 49
IV.ATPI.EHZ. 2023-12-09T02:34:49.38 0.3 positive manual P 341 6.0939 109 -0.02 75
IV.ATLO.EHZ. 2023-12-09T02:34:49.95 0.1 undecidable manual P 190 9.4794 103 -0.1 97
IV.TB03.DHZ. 2023-12-09T02:34:48.50 0.1 undecidable manual P 281 1.2987 148 -0.12 98
IV.ATVO.HHZ. 2023-12-09T02:34:48.72 1.0 undecidable manual P 221 2.4975 131 -0.05 25
IV.TB01.DHZ. 2023-12-09T02:34:48.64 0.1 undecidable manual P 159 2.0979 136 -0.07 99
IV.TB03.DHZ. 2023-12-09T02:34:48.94 0.6 undecidable manual S 281 1.2987 148 -0.04 50
IV.TB02.DHZ. 2023-12-09T02:34:48.92 0.1 undecidable manual P 204 3.4965 122 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.8 0.0000614 1.68 AML other m 2023-12-09T02:34:55.02
IV.PIEI.HHE. ML:0.8 0.0000589 0.18 AML other m 2023-12-09T02:34:55.05
IV.MURB.HHN. ML:1.0 0.0001005 1.26 AML other m 2023-12-09T02:34:55.08
IV.MURB.HHE. ML:1.0 0.00009606284 0.2592 AML other m 2023-12-09T02:34:54.61
IV.ATVO.HHE. ML:0.0 0.00027655445 0.16 AML other m 2023-12-09T02:34:49.60
IV.ATVO.HHN. ML:0.0 0.00025495795 0.1408 AML other m 2023-12-09T02:34:49.62
IV.ATVO.HNE. ML:0.0 0.00026183485000000003 0.1408 AML other m 2023-12-09T02:34:49.60
IV.ATVO.HNN. ML:0.0 0.00026298405000000003 0.1792 AML other m 2023-12-09T02:34:49.77
IV.ATPI.EHE. ML:0.0 0.000054112104999999993 0.2992 AML other m 2023-12-09T02:34:51.72
IV.ATPI.EHN. ML:0.0 0.00005063894 0.16 AML other m 2023-12-09T02:34:50.68
IV.ATPI.HNE. ML:0.0 0.00010091473500000001 0.3696 AML other m 2023-12-09T02:34:51.06
IV.ATPI.HNN. ML:0.0 0.00001244569 42.7504 AML other m 2023-12-09T02:34:48.77
IV.MURB.HNE. ML:1.0 0.000105942245 0.3712 AML other m 2023-12-09T02:34:54.60
IV.MURB.HNN. ML:1.0 0.000104314565 0.4 AML other m 2023-12-09T02:34:55.84
IV.ATMI.HHE. ML:0.3 0.000025763498499999997 0.56 AML other m 2023-12-09T02:34:58.13
IV.ATMI.HHN. ML:0.3 0.00002711468645 0.2992 AML other m 2023-12-09T02:34:55.77
IV.PIEI.HNE. ML:1.2 0.00014838400000000002 0.7888 AML other m 2023-12-09T02:34:52.33
IV.PIEI.HNN. ML:1.1 0.000124044155 0.6304 AML other m 2023-12-09T02:34:52.70
IV.BADI.EHE. ML:0.6 0.000035707694999999997 0.16 AML other m 2023-12-09T02:34:55.66
IV.BADI.EHN. ML:0.7 0.000039449235 0.1808 AML other m 2023-12-09T02:34:55.65
IV.NARO.HHE. ML:0.5 0.0000185274741 1.28 AML other m 2023-12-09T02:34:52.85
IV.NARO.HHN. ML:0.2 0.000007872022499999998 0.36 AML other m 2023-12-09T02:35:01.28
IV.FRON.EHE. ML:0.4 0.000016690045 0.8992 AML other m 2023-12-09T02:35:04.19
IV.FRON.EHN. ML:0.7 0.000027597750000000002 1.4384 AML other m 2023-12-09T02:35:05.65
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