Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.6 on date 26-12-2019 and time 17:04:55 (UTC) in region 6 km N Pietralunga (PG)

A magnitude ML 0.6 earthquake occured in region: 6 km N Pietralunga (PG), on

  • 26-12-2019 17:04:55 (UTC)
  • 26-12-2019 18:04:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4930, 12.4380 at 6 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 6 2111 2111
Apecchio PU 8 1882 3993
Piobbico PU 12 2029 6022
Cantiano PU 16 2245 8267
Città di Castello PG 17 39913 48180
Montone PG 17 1680 49860
Cagli PU 18 8731 58591
Mercatello sul Metauro PU 19 1378 59969
Gubbio PG 19 32216 92185
Sant'Angelo in Vado PU 19 4133 96318

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km N of Perugia (166134 inhabitants)
45 Km E of Arezzo (99543 inhabitants)
60 Km SW of Pesaro (94582 inhabitants)
61 Km SW of Fano (60888 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
64 Km S of Rimini (147750 inhabitants)
73 Km S of Cesena (96758 inhabitants)
87 Km SE of Forlì (117913 inhabitants)
88 Km W of Ancona (100861 inhabitants)
91 Km E of Siena (53903 inhabitants)
99 Km SE of Faenza (58541 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 0.6 2019-12-26
17:04:55		 43.4932 12.4377 6 2019-12-26
17:33:12		 Sala Sismica INGV-Roma 74998631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-26 17:04:55 ± 0.12
Latitude 43.4932 ± 0.0036
Longitude 12.4377 ± 0.0037
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74998631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 349
Semi-minor axis of confidence ellipse (meter) 108
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21224
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 74998631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-26 17:33:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
ST.PANI.EHZ. 2019-12-26T17:06:17.31 3.0 undecidable manual Sn 3.71 0
IV.PLLN.EHZ. 2019-12-26T17:06:06.76 3.0 positive manual Pg 4.45 0
GU.TRAV.HHZ. 2019-12-26T17:05:58.33 3.0 undecidable manual Pn 6.51 0
IT.ACQ.HGZ. 2019-12-26T17:05:49.10 3.0 undecidable manual Pg 8.96 0
GE.MATE.HHZ. 2019-12-26T17:05:41.88 3.0 undecidable manual Pn -1.72 0
IT.VNF1.HGZ. 2019-12-26T17:05:39.60 3.0 undecidable manual Sg -0.66 0
IV.CAFE.HHZ. 2019-12-26T17:05:30.77 3.0 undecidable manual Pg 1.79 0
IV.FIR.HHZ. 2019-12-26T17:05:27.11 3.0 undecidable manual S -1.26 0
IV.ATVA.. 2019-12-26T17:05:04.77 3.0 undecidable manual S 0
IV.PARC.HHZ. 2019-12-26T17:05:04.14 0.3 undecidable manual S 317 23.5542 105 0.31 68
IV.PE3.EHE. 2019-12-26T17:05:03.12 0.1 undecidable manual S 12 22.9548 105 -0.53 87
IV.ATSC.EHZ. 2019-12-26T17:05:03.11 0.1 undecidable manual S 111 21.4674 106 -0.03 97
IV.ATLO.HNZ. 2019-12-26T17:05:02.65 0.1 undecidable manual S 187 19.869 107 0.02 97
IV.MMO1.EHZ. 2019-12-26T17:05:01.18 3.0 undecidable manual S -1.4 0
IV.BADI.EHZ. 2019-12-26T17:05:01.35 0.1 undecidable manual S 277 15.6732 112 0.11 96
IV.NARO.HHZ. 2019-12-26T17:05:01.68 0.1 undecidable manual S 41 17.3715 110 -0.12 96
IV.PE3.EHE. 2019-12-26T17:05:00.66 0.3 undecidable manual P 12 22.9548 105 0.5 66
IV.ATVA.EHZ. 2019-12-26T17:05:00.32 3.0 undecidable manual P 0
IV.PARC.HHZ. 2019-12-26T17:05:00.19 0.3 undecidable manual P 317 23.5542 105 -0.07 72
IV.ATSC.EHZ. 2019-12-26T17:04:59.74 0.1 undecidable manual P 111 21.4674 106 -0.12 95
IV.PIEI.HHZ. 2019-12-26T17:04:59.60 0.1 undecidable manual S 59 9.1797 124 0.38 92
IV.ATLO.HNZ. 2019-12-26T17:04:59.44 0.1 undecidable manual P 187 19.869 107 -0.13 95
IV.ATBU.HNE. 2019-12-26T17:04:59.51 0.1 undecidable manual S 102 9.0798 124 0.3 94
IV.NARO.HHZ. 2019-12-26T17:04:58.94 0.1 undecidable manual P 41 17.3715 110 -0.15 95
IV.BADI.EHZ. 2019-12-26T17:04:58.72 0.1 undecidable manual P 277 15.6732 112 -0.05 98
IV.ATPI.EHZ. 2019-12-26T17:04:57.07 0.1 undecidable manual P 211 5.4945 138 0.02 100
IV.ATPC.HNE. 2019-12-26T17:04:57.39 0.1 undecidable manual S 132 2.0979 162 -0.27 95
IV.ATBU.HNE. 2019-12-26T17:04:57.63 0.1 undecidable manual P 102 9.0798 124 0.03 99
IV.PIEI.HHZ. 2019-12-26T17:04:57.70 0.1 undecidable manual P 59 9.1797 124 0.1 98
IV.MURB.. 2019-12-26T17:04:57.40 3.0 undecidable manual P 0
IV.ATMI.HHZ. 2019-12-26T17:04:56.06 3.0 undecidable manual P 0
IV.ATPC.HNE. 2019-12-26T17:04:56.60 0.1 undecidable manual P 132 2.0979 162 -0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:0.6 0.00006035 1.5 AML other m 2019-12-26T17:04:59.10
IV.ATPI.EHE. ML:0.6 0.00006685 1.02 AML other m 2019-12-26T17:04:59.64
IV.PIEI.HHN. ML:0.8 0.00009275 0.36 AML other m 2019-12-26T17:04:59.95
IV.BADI.EHN. ML:0.6 0.0000421 0.84 AML other m 2019-12-26T17:05:01.73
IV.BADI.EHE. ML:0.5 0.000033350000000000004 0.7 AML other m 2019-12-26T17:05:01.83
IV.PIEI.HHE. ML:0.9 0.00013393345 0.1408 AML other m 2019-12-26T17:04:59.96
IV.NARO.HHE. ML:0.3 0.000020820499999999998 0.128 AML other m 2019-12-26T17:05:02.17
IV.NARO.HHN. ML:0.2 0.000014829815 0.0768 AML other m 2019-12-26T17:05:02.11
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