Earthquake with magnitude of ML 0.3 on date 12-04-2020 and time 10:16:26 (UTC) in region 3 km SE Pietralunga (PG)

A magnitude ML 0.3 earthquake occured in region: 3 km SE Pietralunga (PG), on

  • 12-04-2020 10:16:26 (UTC)
  • 12-04-2020 12:16:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.42, 12.46 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 3 2111 2111
Gubbio PG 12 32216 34327
Montone PG 12 1680 36007
Cantiano PU 15 2245 38252
Apecchio PU 16 1882 40134
Umbertide PG 17 16681 56815
Scheggia e Pascelupo PG 17 1393 58208
CittĂ  di Castello PG 19 39913 98121
Piobbico PU 19 2029 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
47 Km E of Arezzo (99543 inhabitants)
55 Km NW of Foligno (57155 inhabitants)
65 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
72 Km S of Rimini (147750 inhabitants)
82 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
92 Km E of Siena (53903 inhabitants)
96 Km SE of Forlì (117913 inhabitants)
97 Km N of Terni (111501 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
Reviewed
Rev100
ML 0.3 2020-04-12
10:16:26
43.42 12.46 8 2020-04-12
10:22:07
Sala Sismica INGV-Roma 78139141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-12 10:16:26 ± 0.15
Latitude 43.42 ± 0.00
Longitude 12.46 ± 0.01
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 78139141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 401
Semi-minor axis of confidence ellipse (meter) 348
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 113
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
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) 0.04137
Epicentral distance of station farthest from the epicenter (degree) 0.268
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 78139141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-12 10:22:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2020-04-12T10:16:37.03 0.3 undecidable manual S 151 0.268 105 0.34 67
IV.FRON.EHZ. 2020-04-12T10:16:34.46 0.6 undecidable manual S 63 0.2158 108 -0.31 46
IV.MURB.HHZ. 2020-04-12T10:16:33.11 0.6 undecidable manual S 164 0.1628 114 0.23 47
IV.ATCC.EHZ. 2020-04-12T10:16:32.14 0.1 undecidable manual P 151 0.268 105 -0.04 95
IV.PIEI.HHZ. 2020-04-12T10:16:31.97 0.6 undecidable manual S 25 0.1277 119 0.3 46
IV.MURB.HHZ. 2020-04-12T10:16:30.09 0.1 undecidable manual P 164 0.1628 114 0.11 96
IV.ATFO.HHN. 2020-04-12T10:16:30.39 0.3 undecidable manual S 123 0.0953 127 -0.24 71
IV.NARO.HHZ. 2020-04-12T10:16:30.74 0.1 undecidable manual P 24 0.2095 109 -0.22 93
IV.ATBU.HNZ. 2020-04-12T10:16:30.55 0.6 undecidable manual S 48 0.0845 130 0.26 47
IV.FRON.EHZ. 2020-04-12T10:16:30.82 0.1 undecidable manual P 63 0.2158 108 -0.25 92
IV.ATVO.HHZ. 2020-04-12T10:16:29.36 0.6 undecidable manual S 227 0.0549 143 -0.13 49
IV.ATPC.HNZ. 2020-04-12T10:16:29.81 0.3 undecidable manual S 357 0.0612 139 0.15 73
IV.PIEI.HHZ. 2020-04-12T10:16:29.42 1.0 positive manual P 25 0.1277 119 0.14 24
IV.ATFO.HHN. 2020-04-12T10:16:28.53 0.1 undecidable manual P 123 0.0953 127 -0.15 96
IV.ATVO.HHZ. 2020-04-12T10:16:28.04 0.1 positive manual P 227 0.0549 143 0.01 100
IV.ATPC.HNZ. 2020-04-12T10:16:28.26 0.1 undecidable manual P 357 0.0612 139 0.14 97
IV.TB03.DHZ.01 2020-04-12T10:16:28.80 0.6 undecidable manual S 244 0.0414 150 -0.41 46
IV.ATBU.HNZ. 2020-04-12T10:16:28.69 0.1 undecidable manual P 48 0.0845 130 0.2 96
IV.TB03.DHZ.01 2020-04-12T10:16:27.84 0.1 undecidable manual P 244 0.0414 150 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:0 1.785E-5 0.1 AML other m 2020-04-12T10:16:29.49
IV.ATVO.HHN. ML:0 2.23E-5 0.14 AML other m 2020-04-12T10:16:29.43
IV.MURB.HHN. ML:0.5 2.6E-5 0.38 AML other m 2020-04-12T10:16:33.53
IV.MURB.HHE. ML:0.5 2.81E-5 1.7 AML other m 2020-04-12T10:16:34.92
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