Earthquake with magnitude of ML 0.7 on date 09-04-2020 and time 04:01:54 (Italy) in region 7 km S Pietralunga (PG)

A magnitude ML 0.7 earthquake occured in region: 7 km S Pietralunga (PG), on

  • 09-04-2020 02:01:54 (UTC)
  • 09-04-2020 04:01:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.38, 12.44 at 10 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
Montone PG 9 1680 3791
Gubbio PG 12 32216 36007
Umbertide PG 12 16681 52688
Cantiano PU 18 2245 54933
Scheggia e Pascelupo PG 19 1393 56326
CittĂ  di Castello PG 19 39913 96239
Apecchio PU 20 1882 98121

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km N of Perugia (166134 inhabitants)
46 Km E of Arezzo (99543 inhabitants)
52 Km NW of Foligno (57155 inhabitants)
69 Km SW of Fano (60888 inhabitants)
70 Km SW of Pesaro (94582 inhabitants)
76 Km S of Rimini (147750 inhabitants)
86 Km S of Cesena (96758 inhabitants)
90 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
93 Km N of Terni (111501 inhabitants)
99 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 0.7 2020-04-09
02:01:54
43.38 12.44 10 2020-04-09
02:06:44
Sala Sismica INGV-Roma 78027291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-09 02:01:54 ± 0.18
Latitude 43.38 ± 0.01
Longitude 12.44 ± 0.01
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 78027291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 943
Semi-minor axis of confidence ellipse (meter) 683
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 940
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 173
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 0.24641
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 78027291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-09 02:06:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FRON.EHZ. 2020-04-09T02:02:03.78 0.6 undecidable manual S 56 0.2464 50 -0.47 44
IV.APEC.HHZ. 2020-04-09T02:02:01.93 0.6 undecidable manual S 355 0.1781 116 0.13 48
IV.PIEI.HHZ. 2020-04-09T02:02:01.41 0.6 undecidable manual S 24 0.1682 117 -0.07 49
IV.ATFO.HHZ. 2020-04-09T02:01:59.10 0.6 undecidable manual S 99 0.0953 133 -0.05 50
IV.FRON.EHZ. 2020-04-09T02:01:59.92 0.1 undecidable manual P 56 0.2464 50 -0.07 97
IV.PIEI.HHZ. 2020-04-09T02:01:58.55 0.1 undecidable manual P 24 0.1682 117 0.16 96
IV.ATPI.EHZ. 2020-04-09T02:01:58.17 0.6 undecidable manual S 337 0.0755 139 -0.45 46
IV.APEC.HHZ. 2020-04-09T02:01:58.82 0.1 undecidable manual P 355 0.1781 116 0.24 95
IV.ATVO.HHZ. 2020-04-09T02:01:57.40 0.1 undecidable manual S 272 0.0261 163 -0.29 96
IV.ATFO.HHZ. 2020-04-09T02:01:57.22 0.1 undecidable manual P 99 0.0953 133 0.17 97
IV.ATVO.HHZ. 2020-04-09T02:01:56.35 0.1 undecidable manual P 272 0.0261 163 0.14 99
IV.ATPI.EHZ. 2020-04-09T02:01:56.80 0.1 undecidable manual P 337 0.0755 139 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHE. ML:1 0.0001815 0.34 AML other m 2020-04-09T02:01:57.75
IV.ATVO.HHN. ML:0.8 0.0001275 0.54 AML other m 2020-04-09T02:01:58.61
IV.ATPI.EHN. ML:0.8 8.215E-5 0.14 AML other m 2020-04-09T02:01:58.36
IV.ATPI.EHE. ML:0.7 6.59E-5 0.42 AML other m 2020-04-09T02:01:58.45
IV.ATFO.HHE. ML:0.8 8.38E-5 0.3 AML other m 2020-04-09T02:01:59.40
IV.ATFO.HHN. ML:0.8 7.065E-5 0.38 AML other m 2020-04-09T02:01:59.51
IV.PIEI.HHN. ML:0.8 4.33E-5 1.38 AML other m 2020-04-09T02:02:02.09
IV.PIEI.HHE. ML:0.8 5.12E-5 1.74 AML other m 2020-04-09T02:02:02.99
IV.APEC.HHN. ML:0.5 2.605E-5 0.2 AML other m 2020-04-09T02:02:02.28
IV.APEC.HHE. ML:0.4 2.205E-5 0.74 AML other m 2020-04-09T02:02:02.03
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