Earthquake with magnitude of ML 0.2 on date 29-04-2021 and time 10:18:16 (UTC) in region 7 km W Pietralunga (PG)

A magnitude ML 0.2 earthquake occured in region: 7 km W Pietralunga (PG), on

  • 29-04-2021 10:18:16 (UTC)
  • 29-04-2021 12:18:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.437, 12.345 at 5 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
Pietralunga PG 8 2111 2111
Montone PG 8 1680 3791
CittĂ  di Castello PG 9 39913 43704
Umbertide PG 15 16681 60385
Monte Santa Maria Tiberina PG 15 1183 61568
Apecchio PU 15 1882 63450
San Giustino PG 18 11297 74747
Monterchi AR 20 1757 76504
Citerna PG 20 3531 80035

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Perugia (166134 inhabitants)
37 Km E of Arezzo (99543 inhabitants)
61 Km NW of Foligno (57155 inhabitants)
70 Km SW of Pesaro (94582 inhabitants)
71 Km SW of Fano (60888 inhabitants)
72 Km S of Rimini (147750 inhabitants)
78 Km S of Cesena (96758 inhabitants)
83 Km E of Siena (53903 inhabitants)
91 Km S of Forlì (117913 inhabitants)
95 Km E of Firenze (382808 inhabitants)
97 Km W of Ancona (100861 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.2 2021-04-29
10:18:16
43.4372 12.3453 5 2021-04-29
10:25:11
Sala Sismica INGV-Roma 89586881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-29 10:18:16 ± 0.12
Latitude 43.4372 ± 0.0027
Longitude 12.3453 ± 0.0050
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89586881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 365
Semi-minor axis of confidence ellipse (meter) 136
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 155
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.16907
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 89586881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-29 10:25:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OT.OT11.EHZ. 2021-04-29T10:19:43.46 3.0 undecidable manual Sg 12.74 0
IV.CROCE.HHZ. 2021-04-29T10:19:33.63 3.0 negative manual Pn -2.66 0
IV.GIZZ.HHZ. 2021-04-29T10:19:15.81 3.0 undecidable manual Pn -2.4 0
IV.PALZ.HHZ. 2021-04-29T10:19:15.25 3.0 negative manual Pg 17.540001 0
IV.PTRP.HHZ. 2021-04-29T10:19:13.91 3.0 undecidable manual Pg 11.88 0
IV.SELL.HHZ. 2021-04-29T10:19:13.32 3.0 undecidable manual Pn -7.43 0
IV.CAPA.HHZ. 2021-04-29T10:19:11.22 3.0 undecidable manual Pg 16.27 0
CR.ZAG.BHZ. 2021-04-29T10:19:10.62 3.0 undecidable manual Pg 14.68 0
IV.NDIM.HNZ. 2021-04-29T10:19:06.27 3.0 undecidable manual Sg 7.68 0
IV.TREG.EHZ. 2021-04-29T10:19:03.19 3.0 undecidable manual Sn -5.06 0
IV.CAVE.HHZ. 2021-04-29T10:18:57.00 3.0 undecidable manual Sn -0.79 0
IV.VENT.EHZ. 2021-04-29T10:18:56.14 3.0 positive manual Pg 11.49 0
IV.PESA.HHZ. 2021-04-29T10:18:54.11 3.0 undecidable manual Sg 5.12 0
IV.CPGN.EHZ. 2021-04-29T10:18:51.69 3.0 undecidable manual Sg 6.11 0
IV.SGG.HHZ. 2021-04-29T10:18:51.50 3.0 positive manual Pg 8.06 0
IV.FIR.HHZ. 2021-04-29T10:18:47.48 3.0 undecidable manual Sg 1.87 0
IV.SFI.EHZ. 2021-04-29T10:18:46.46 3.0 undecidable manual Sg 1.22 0
IV.CADC.HNZ. 2021-04-29T10:18:45.28 3.0 negative manual Pg 6.87 0
IV.FOSV.EHZ. 2021-04-29T10:18:42.98 3.0 undecidable manual Sn -4.07 0
IV.CSNT.HHZ. 2021-04-29T10:18:37.13 3.0 undecidable manual Sn -7.61 0
MN.TRI.HHZ. 2021-04-29T10:18:36.88 3.0 positive manual Pn -5.1 0
IV.ATFO.HHZ. 2021-04-29T10:18:25.26 3.0 negative manual Pg 1.74 0
IV.NDIM.HNZ. 2021-04-29T10:18:25.12 3.0 undecidable manual P -5.56 0
IV.PP3.EHZ. 2021-04-29T10:18:24.54 3.0 positive manual Pn -3.71 0
IV.PIEI.HHZ. 2021-04-29T10:18:23.68 0.6 undecidable manual S 54 0.1691 106 0.22 47
IV.ATLO.HNN. 2021-04-29T10:18:22.14 0.3 undecidable manual S 160 0.1304 111 0.12 73
IV.BADI.EHZ. 2021-04-29T10:18:21.22 0.3 undecidable manual S 315 0.1034 115 0.15 73
IV.TB01.DHE.01 2021-04-29T10:18:20.53 0.3 undecidable manual S 130 0.0863 120 0.04 75
IV.ATPC.HHE. 2021-04-29T10:18:20.93 0.3 undecidable manual S 62 0.0917 118 0.24 72
IV.PIEI.HHZ. 2021-04-29T10:18:20.42 0.3 undecidable manual P 54 0.1691 106 -0.17 72
IV.TB03.DH2.01 2021-04-29T10:18:19.71 0.3 undecidable manual S 127 0.0594 130 0.07 75
IV.ATLO.HNN. 2021-04-29T10:18:19.59 0.3 undecidable manual P 160 0.1304 111 -0.17 72
IV.BADI.EHZ. 2021-04-29T10:18:19.18 0.6 undecidable manual P 315 0.1034 115 -0.03 50
IV.MCIV.CHZ. 2021-04-29T10:18:18.65 3.0 undecidable manual Pn -5.32 0
IV.ATPI.EHZ. 2021-04-29T10:18:18.98 0.3 undecidable manual S 72 0.0432 138 -0.22 73
IV.TB03.DH2.01 2021-04-29T10:18:18.32 0.1 undecidable manual P 127 0.0594 130 -0.06 100
IV.TB01.DHE.01 2021-04-29T10:18:18.98 0.3 undecidable manual P 130 0.0863 120 0.1 74
IV.ATPC.HHE. 2021-04-29T10:18:18.95 0.3 undecidable manual P 62 0.0917 118 -0.04 75
IV.TB02.DHE.01 2021-04-29T10:18:18.86 0.1 undecidable manual P 145 0.0809 121 0.07 99
IV.ATPI.EHZ. 2021-04-29T10:18:17.93 0.1 undecidable manual P 72 0.0432 138 -0.2 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.1 1.2140165E-5 0.2368 AML other m 2021-04-29T10:18:24.01
IV.PIEI.HHE. ML:0.2 1.58E-5 1.48 AML other m 2021-04-29T10:18:23.92
IV.ATPI.EHE. ML:0 9.439414E-5 0.0832 AML other m 2021-04-29T10:18:19.04
IV.ATPI.EHN. ML:0 6.1417815E-5 0.096 AML other m 2021-04-29T10:18:19.04
IV.ATPI.HNE. ML:0 0.00011923245 0.608 AML other m 2021-04-29T10:18:22.72
IV.ATPI.HNN. ML:0 0.000110016015 0.6976 AML other m 2021-04-29T10:18:21.94
IV.MCIV.CHE. ML:1.5 3.320659E-5 0.1408 AML other m 2021-04-29T10:18:23.91
IV.MCIV.CHN. ML:1.1 1.741681E-5 0.64 AML other m 2021-04-29T10:18:58.92
IV.BADI.EHE. ML:0.2 2.5972735E-5 0.1408 AML other m 2021-04-29T10:18:21.83
IV.BADI.EHN. ML:0.3 3.050759E-5 0.16 AML other m 2021-04-29T10:18:21.86
IV.PP3.EHE. ML:2.2 0.0001512626 0.1024 AML other m 2021-04-29T10:18:31.40
IV.PP3.EHN. ML:2.2 0.0001645545 0.16 AML other m 2021-04-29T10:18:52.93
IV.PP3.HNE. ML:2.3 0.00018223915 0.64 AML other m 2021-04-29T10:18:54.60
IV.PP3.HNN. ML:2.4 0.00022825565 0.6912 AML other m 2021-04-29T10:18:47.81
IV.NDIM.HNE. ML:3.4 0.00081429345 0.1024 AML other m 2021-04-29T10:18:34.19
IV.NDIM.HNN. ML:3.3 0.0006863355 0.2368 AML other m 2021-04-29T10:19:31.84
IV.NDIM.HHE. ML:3.3 0.00069310065 0.0832 AML other m 2021-04-29T10:18:34.19
IV.NDIM.HHN. ML:3.2 0.00046014055 0.16 AML other m 2021-04-29T10:19:37.23
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