Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 22-02-2020 and time 22:27:23 (Italy) in region 5 km E Pietralunga (PG)

A magnitude ML 0.4 earthquake occured in region: 5 km E Pietralunga (PG), on

  • 22-02-2020 21:27:23 (UTC)
  • 22-02-2020 22:27:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4630, 12.4870 at 9 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
Cantiano PU 12 2245 4356
Apecchio PU 12 1882 6238
Gubbio PG 14 32216 38454
Piobbico PU 14 2029 40483
Cagli PU 16 8731 49214
Scheggia e Pascelupo PG 16 1393 50607
Montone PG 17 1680 52287

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Perugia (166134 inhabitants)
49 Km E of Arezzo (99543 inhabitants)
59 Km NW of Foligno (57155 inhabitants)
60 Km SW of Fano (60888 inhabitants)
61 Km SW of Pesaro (94582 inhabitants)
67 Km S of Rimini (147750 inhabitants)
78 Km S of Cesena (96758 inhabitants)
85 Km W of Ancona (100861 inhabitants)
92 Km SE of Forlì (117913 inhabitants)
95 Km E of Siena (53903 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 0.4 2020-02-22
21:27:23		 43.4633 12.487 9 2020-02-22
21:35:54		 Sala Sismica INGV-Roma 76733201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-22 21:27:23 ± 0.1
Latitude 43.4633 ± 0.0027
Longitude 12.4870 ± 0.0037
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76733201

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 36
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 319
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 69
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25811
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 15
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 76733201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-22 21:35:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.HNZ. 2020-02-22T21:27:47.86 3.0 undecidable manual S 0.09 0
IV.MMO1.EHZ. 2020-02-22T21:27:37.29 3.0 undecidable manual Pn 0.08 0
IV.PARC.HHZ. 2020-02-22T21:27:33.95 0.6 undecidable manual S 316 28.6491 107 0.5 44
IV.ATMI.HHE. 2020-02-22T21:27:32.05 0.6 undecidable manual S 231 22.755 111 0.54 43
IV.BADI.EHE. 2020-02-22T21:27:31.05 0.6 undecidable manual S 285 20.1687 113 0.36 46
IV.MURB.HHZ. 2020-02-22T21:27:31.47 0.6 undecidable manual S 172 22.4553 111 0.06 48
IV.SSFR.HHZ. 2020-02-22T21:27:31.68 0.6 undecidable manual S 97 23.9538 110 -0.23 47
IV.ATMC.. 2020-02-22T21:27:31.98 3.0 undecidable manual S 0
IV.ATLO.HNZ. 2020-02-22T21:27:29.81 0.6 undecidable manual S 201 17.6712 116 -0.07 49
IV.ATSC.EHZ. 2020-02-22T21:27:29.71 0.6 undecidable manual S 105 16.6722 117 0.14 48
IV.NARO.HHZ. 2020-02-22T21:27:29.65 0.6 undecidable manual S 25 17.9709 115 -0.35 46
IV.SSFR.HHZ. 2020-02-22T21:27:28.14 1.0 undecidable manual P 97 23.9538 110 -0.04 24
IV.ATVO.HHZ. 2020-02-22T21:27:28.03 0.6 undecidable manual S 216 11.0778 128 0.09 49
IV.CPGN.EHZ. 2020-02-22T21:27:28.69 3.0 undecidable manual S -0.28 0
IV.TB02.DHE. 2020-02-22T21:27:28.26 0.6 undecidable manual S 211 12.0768 125 0.05 49
IV.PARC.HHZ. 2020-02-22T21:27:28.71 0.1 undecidable manual P 316 28.6491 107 -0.36 90
IV.NARO.HHZ. 2020-02-22T21:27:27.12 0.1 undecidable manual P 25 17.9709 115 0.05 98
IV.ATMI.HHE. 2020-02-22T21:27:27.67 0.1 undecidable manual P 231 22.755 111 -0.27 92
IV.TB03.DH1. 2020-02-22T21:27:27.12 0.6 undecidable manual S 222 9.2796 133 -0.33 47
IV.BADI.EHE. 2020-02-22T21:27:27.42 0.1 undecidable manual P 285 20.1687 113 -0.05 97
IV.MURB.HHZ. 2020-02-22T21:27:27.99 1.0 undecidable manual P 172 22.4553 111 0.11 24
IV.TB01.DHE. 2020-02-22T21:27:27.44 0.6 undecidable manual S 205 9.9789 131 -0.2 48
IV.ATPI.EHZ. 2020-02-22T21:27:26.77 0.6 undecidable manual S 258 6.993 141 -0.13 49
IV.ATSC.EHZ. 2020-02-22T21:27:26.90 0.1 undecidable manual P 105 16.6722 117 0.07 97
IV.ATMC.EHZ. 2020-02-22T21:27:26.81 3.0 undecidable manual P 0
IV.ATBU.HNE. 2020-02-22T21:27:26.70 0.6 undecidable manual S 74 5.0949 149 0.17 49
IV.ATLO.HNZ. 2020-02-22T21:27:26.81 0.1 undecidable manual P 201 17.6712 116 -0.19 95
IV.TB02.DHE. 2020-02-22T21:27:26.15 0.1 undecidable manual P 211 12.0768 125 0.11 97
IV.ATBU.HNE. 2020-02-22T21:27:25.42 0.1 undecidable manual P 74 5.0949 149 0.35 94
IV.ATPC.HNE. 2020-02-22T21:27:25.81 0.6 undecidable manual S 309 3.0969 160 -0.42 46
IV.TB01.DHE. 2020-02-22T21:27:25.72 0.1 undecidable manual P 205 9.9789 131 0.01 100
IV.ATPI.EHZ. 2020-02-22T21:27:25.40 0.1 undecidable manual P 258 6.993 141 0.11 98
IV.ATVO.HHZ. 2020-02-22T21:27:25.88 0.1 undecidable manual P 216 11.0778 128 0 100
IV.TB03.DH1. 2020-02-22T21:27:25.65 0.1 undecidable manual P 222 9.2796 133 0.05 99
IV.ATPC.HNE. 2020-02-22T21:27:24.95 0.1 undecidable manual P 309 3.0969 160 0.05 100
IV.FIR.HHZ. 2020-02-22T21:27:17.86 3.0 undecidable manual P -0.16 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHE. ML:0.3 0.00003290742 0.192 AML other m 2020-02-22T21:27:26.94
IV.ATPI.EHN. ML:0.2 0.00002371589 0.1792 AML other m 2020-02-22T21:27:27.14
IV.ATPI.HNE. ML:0.6 0.000061866368 0.8832 AML other m 2020-02-22T21:27:26.39
IV.ATPI.HNN. ML:1.2 0.00023765167999999999 1.0112 AML other m 2020-02-22T21:27:27.14
IV.ATVO.HHE. ML:0.6 0.000048963044999999995 0.1664 AML other m 2020-02-22T21:27:28.03
IV.ATVO.HHN. ML:0.4 0.00003108917 0.1408 AML other m 2020-02-22T21:27:28.04
IV.NARO.HHE. ML:0.1 0.000011681827 0.064 AML other m 2020-02-22T21:27:30.53
IV.NARO.HHN. ML:0.2 0.00001711438 2.3296 AML other m 2020-02-22T21:27:29.31
IV.MURB.HHE. ML:0.4 0.000013491573499999999 0.4096 AML other m 2020-02-22T21:27:32.02
IV.MURB.HHN. ML:0.5 0.00001810514 1.408 AML other m 2020-02-22T21:27:31.96
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