Earthquake with magnitude of ML 0.4 on date 07-04-2020 and time 09:54:53 (Italy) in region 7 km SE Pietralunga (PG)

A magnitude ML 0.4 earthquake occured in region: 7 km SE Pietralunga (PG), on

  • 07-04-2020 07:54:53 (UTC)
  • 07-04-2020 09:54:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.38, 12.47 at 8 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 7 2111 2111
Gubbio PG 9 32216 34327
Montone PG 12 1680 36007
Umbertide PG 14 16681 52688
Scheggia e Pascelupo PG 16 1393 54081
Cantiano PU 16 2245 56326
Costacciaro PG 20 1216 57542

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of Perugia (166134 inhabitants)
49 Km E of Arezzo (99543 inhabitants)
51 Km NW of Foligno (57155 inhabitants)
68 Km SW of Fano (60888 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
76 Km S of Rimini (147750 inhabitants)
86 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
92 Km N of Terni (111501 inhabitants)
93 Km E of Siena (53903 inhabitants)
100 Km SE of Forlì (117913 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 0.4 2020-04-07
07:54:53
43.38 12.47 8 2020-04-07
08:04:26
Sala Sismica INGV-Roma 77971761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-07 07:54:53 ± 0.09
Latitude 43.38 ± 0.00
Longitude 12.47 ± 0.00
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77971761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 262
Semi-minor axis of confidence ellipse (meter) 164
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 122
Circular confidence region, given by single value of horizontal uncertainty (meter) 260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.16008
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 77971761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-07 08:04:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
OT.OT05.EHZ. 2020-04-07T07:56:28.63 3.0 undecidable manual Sg 12.37 0
MN.KEK.HHZ. 2020-04-07T07:56:26.02 3.0 undecidable manual Pn -0.4 0
IV.GATE.HHZ. 2020-04-07T07:56:10.59 3.0 undecidable manual Sg 3.33 0
IV.SPS2.HHZ. 2020-04-07T07:56:07.49 3.0 negative manual Pn 5.84 0
IV.VENT.EHZ. 2020-04-07T07:56:01.07 3.0 undecidable manual Sn -0.56 0
IV.ROSPO.HHZ. 2020-04-07T07:55:54.67 3.0 undecidable manual Sn -4.56 0
IV.VENL.HNZ. 2020-04-07T07:55:52.59 3.0 undecidable manual Sn -0.23 0
IV.NDIM.HNZ. 2020-04-07T07:55:41.31 3.0 undecidable manual Sg 1.09 0
IV.PAOL.HHZ. 2020-04-07T07:55:38.71 3.0 undecidable manual Pg 7.25 0
IV.OFFI.HHZ. 2020-04-07T07:55:35.52 3.0 undecidable manual S 2.56 0
OT.OT05.EHZ. 2020-04-07T07:55:33.61 3.0 negative manual Pn -1.4 0
IV.RMP.HHZ. 2020-04-07T07:55:32.06 3.0 undecidable manual S -1.47 0
IV.BRSN.EHZ. 2020-04-07T07:55:24.53 3.0 undecidable manual S -0.24 0
IV.PCN.EHZ. 2020-04-07T07:55:18.35 3.0 negative manual Pn -3.46 0
IV.SRES.HHZ. 2020-04-07T07:55:17.32 3.0 undecidable manual S -5.46 0
IV.PE3.EHZ. 2020-04-07T07:55:12.48 3.0 undecidable manual S -1.43 0
IV.MTRZ.HHZ. 2020-04-07T07:55:05.19 3.0 negative manual P -0.76 0
IV.ARVD.HHZ. 2020-04-07T07:55:02.48 3.0 negative manual P -0.86 0
IV.ATPC.HHN. 2020-04-07T07:54:58.21 0.6 undecidable manual S 353 0.0998 126 0.19 48
IV.PIEI.HHZ. 2020-04-07T07:54:57.04 0.3 undecidable manual P 16 0.1601 114 -0.16 72
IV.ATLO.EHE. 2020-04-07T07:54:57.59 0.6 undecidable manual S 216 0.0827 131 0.08 49
IV.ATFO.HNZ. 2020-04-07T07:54:57.24 0.6 undecidable manual S 102 0.0728 135 0 50
IV.CPGN.EHZ. 2020-04-07T07:54:57.45 3.0 undecidable manual P -2.31 0
IV.ATBU.EHN. 2020-04-07T07:54:56.20 0.3 undecidable manual P 30 0.1079 124 0.01 75
IV.MURB.HHZ. 2020-04-07T07:54:56.55 0.3 undecidable manual P 163 0.1241 120 0.06 74
IV.TB03.DHZ.01 2020-04-07T07:54:56.79 0.6 undecidable manual S 293 0.0495 145 0.12 49
IV.ATPC.HHN. 2020-04-07T07:54:56.07 0.3 undecidable manual P 353 0.0998 126 0.05 74
IV.ATVO.HHZ. 2020-04-07T07:54:56.44 0.3 undecidable manual S 270 0.0486 146 -0.21 72
IV.TB02.DHN. 2020-04-07T07:54:55.29 0.1 undecidable manual P 256 0.0477 146 0.07 99
IV.ATVO.HHZ. 2020-04-07T07:54:55.18 0.6 undecidable manual P 270 0.0486 146 -0.05 50
IV.ATLO.EHE. 2020-04-07T07:54:55.72 0.1 undecidable manual P 216 0.0827 131 -0.01 100
IV.ATFO.HNZ. 2020-04-07T07:54:55.52 0.6 undecidable manual P 102 0.0728 135 -0.05 50
IV.TB03.DHZ.01 2020-04-07T07:54:55.22 0.3 undecidable manual P 293 0.0495 145 -0.02 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:0 6.3385775E-5 0.1792 AML other m 2020-04-07T07:54:56.73
IV.ATVO.HHN. ML:0 2.252014E-5 0.224 AML other m 2020-04-07T07:54:56.52
IV.MURB.HHE. ML:0.5 3.3301115E-5 0.2816 AML other m 2020-04-07T07:54:59.48
IV.MURB.HHN. ML:0.4 2.6536075E-5 0.2368 AML other m 2020-04-07T07:55:00.22
IV.PIEI.HHE. ML:0.4 2.1585278E-5 0.16 AML other m 2020-04-07T07:55:00.48
IV.PIEI.HHN. ML:0.2 1.73292625E-5 0.2624 AML other m 2020-04-07T07:55:00.47
IV.MTRZ.HHE. ML:2.6 0.00022105545 0.2624 AML other m 2020-04-07T07:55:49.00
IV.MTRZ.HHN. ML:2.6 0.0002180952 0.16 AML other m 2020-04-07T07:55:11.12
IV.PCN.HNE. ML:3.2 0.00022226095 0.3904 AML other m 2020-04-07T07:56:04.91
IV.PCN.HNN. ML:3.1 0.00017578619 0.3008 AML other m 2020-04-07T07:55:59.62
IV.PCN.EHE. ML:3.1 0.00018990045 0.5568 AML other m 2020-04-07T07:56:04.27
IV.PCN.EHN. ML:3 0.000136342685 0.3648 AML other m 2020-04-07T07:56:04.44
OT.OT05.EHE. ML:4.3 0.002317294 0.064 AML other m 2020-04-07T07:55:35.09
OT.OT05.EHN. ML:4.2 0.00173480515 0.3456 AML other m 2020-04-07T07:56:24.92
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download