Earthquake with magnitude of ML 0.4 on date 26-05-2020 and time 17:18:41 (UTC) in region 2 km SE Pietralunga (PG)

A magnitude ML 0.4 earthquake occured in region: 2 km SE Pietralunga (PG), on

  • 26-05-2020 17:18:41 (UTC)
  • 26-05-2020 19:18:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.42, 12.45 at 7 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 2 2111 2111
Montone PG 12 1680 3791
Gubbio PG 13 32216 36007
Apecchio PU 15 1882 37889
Cantiano PU 16 2245 40134
Umbertide PG 16 16681 56815
CittĂ  di Castello PG 18 39913 96728
Scheggia e Pascelupo PG 18 1393 98121
Piobbico PU 19 2029 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km N of Perugia (166134 inhabitants)
46 Km E of Arezzo (99543 inhabitants)
56 Km NW of Foligno (57155 inhabitants)
66 Km SW of Fano (60888 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
72 Km S of Rimini (147750 inhabitants)
81 Km S of Cesena (96758 inhabitants)
89 Km W of Ancona (100861 inhabitants)
91 Km E of Siena (53903 inhabitants)
95 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 0.4 2020-05-26
17:18:41
43.42 12.45 7 2020-05-26
17:37:59
Sala Sismica INGV-Roma 79592531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-26 17:18:41 ± 0.12
Latitude 43.42 ± 0.00
Longitude 12.45 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79592531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 151
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 316
Circular confidence region, given by single value of horizontal uncertainty (meter) 320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.04317
Epicentral distance of station farthest from the epicenter (degree) 0.24192
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 79592531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-26 17:37:59
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2020-05-26T17:18:51.12 0.3 undecidable manual S 87 0.2419 104 -0.37 67
IV.NARO.HHZ. 2020-05-26T17:18:49.97 0.3 undecidable manual S 27 0.2095 106 -0.34 68
IV.ATSC.EHZ. 2020-05-26T17:18:49.07 0.3 undecidable manual S 90 0.1718 109 0.16 71
IV.BADI.EHZ. 2020-05-26T17:18:49.24 0.3 undecidable manual S 300 0.1718 109 0.31 69
IV.SSFR.HHZ. 2020-05-26T17:18:47.21 0.6 undecidable manual P 87 0.2419 104 -0.23 46
IV.ATLO.EHZ. 2020-05-26T17:18:47.00 0.3 undecidable manual S 196 0.1124 118 0.18 72
IV.PIEI.HHZ. 2020-05-26T17:18:47.68 0.3 undecidable manual S 29 0.1277 115 0.33 69
IV.ATBU.HNZ. 2020-05-26T17:18:46.28 0.3 undecidable manual S 54 0.0881 124 0.26 71
IV.ATFO.HHZ. 2020-05-26T17:18:46.74 0.3 undecidable manual S 123 0.1052 120 0.18 72
IV.NARO.HHZ. 2020-05-26T17:18:46.47 0.3 undecidable manual P 27 0.2095 106 -0.29 69
IV.PIEI.HHZ. 2020-05-26T17:18:45.18 0.3 undecidable manual P 29 0.1277 115 0.13 72
IV.ATSC.EHZ. 2020-05-26T17:18:45.92 0.3 undecidable manual P 90 0.1718 109 -0.03 73
IV.BADI.EHZ. 2020-05-26T17:18:45.87 0.3 undecidable manual P 300 0.1718 109 -0.09 72
IV.TB02.DHZ.01 2020-05-26T17:18:45.21 0.3 undecidable manual S 209 0.0612 135 0.02 75
IV.ATVO.HHZ. 2020-05-26T17:18:44.78 0.3 undecidable manual S 217 0.0522 139 -0.18 72
IV.ATBU.HNZ. 2020-05-26T17:18:44.46 0.3 undecidable manual P 54 0.0881 124 0.18 72
IV.ATFO.HHZ. 2020-05-26T17:18:44.64 0.6 negative manual P 123 0.1052 120 0.05 49
IV.ATLO.EHZ. 2020-05-26T17:18:44.82 0.3 undecidable manual P 196 0.1124 118 0.08 73
IV.ATPI.EHZ. 2020-05-26T17:18:44.48 0.6 undecidable manual S 308 0.0441 144 -0.29 47
IV.TB01.DHZ.01 2020-05-26T17:18:44.55 0.3 undecidable manual S 194 0.0432 144 -0.2 72
IV.ATPI.EHZ. 2020-05-26T17:18:43.40 1.0 undecidable manual P 308 0.0441 144 -0.16 24
IV.TB01.DHZ.01 2020-05-26T17:18:43.52 0.3 undecidable manual P 194 0.0432 144 -0.03 75
IV.ATVO.HHZ. 2020-05-26T17:18:43.66 0.1 positive manual P 217 0.0522 139 -0.01 100
IV.TB02.DHZ.01 2020-05-26T17:18:43.87 0.3 undecidable manual P 209 0.0612 135 0.07 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHE. ML:0 7.6605285E-5 0.0768 AML other m 2020-05-26T17:18:44.56
IV.ATPI.EHN. ML:0 0.000105596975 0.1024 AML other m 2020-05-26T17:18:44.57
IV.ATPI.HNE. ML:0 7.465428E-5 0.064 AML other m 2020-05-26T17:18:44.60
IV.ATPI.HNN. ML:0 0.00010831932 0.0896 AML other m 2020-05-26T17:18:44.57
IV.ATVO.HHE. ML:0 8.3753925E-5 0.1408 AML other m 2020-05-26T17:18:44.88
IV.ATVO.HHN. ML:0 6.2382415E-5 0.2048 AML other m 2020-05-26T17:18:45.90
IV.ATFO.HHE. ML:0.3 2.655248E-5 0.128 AML other m 2020-05-26T17:18:47.09
IV.ATFO.HHN. ML:0.4 3.1982582E-5 0.1792 AML other m 2020-05-26T17:18:47.13
IV.PIEI.HHE. ML:0.6 3.852979E-5 0.1152 AML other m 2020-05-26T17:18:48.56
IV.PIEI.HHN. ML:0.4 2.6997165E-5 0.1152 AML other m 2020-05-26T17:18:48.42
IV.BADI.EHE. ML:0.7 4.1331825E-5 0.256 AML other m 2020-05-26T17:18:49.64
IV.BADI.EHN. ML:0.6 3.472549E-5 0.1152 AML other m 2020-05-26T17:18:49.63
IV.NARO.HHE. ML:0.4 1.4036077E-5 0.1024 AML other m 2020-05-26T17:18:50.17
IV.NARO.HHN. ML:0.4 1.5265625E-5 0.0896 AML other m 2020-05-26T17:18:50.30
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