Earthquake with magnitude of ML 0.3 on date 20-08-2019 and time 22:27:26 (UTC) in region 6 km NW Pietralunga (PG)

A magnitude ML 0.3 earthquake occured in region: 6 km NW Pietralunga (PG), on

  • 20-08-2019 22:27:26 (UTC)
  • 21-08-2019 00:27:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.49, 12.4 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 6 2111 2111
Apecchio PU 8 1882 3993
CittĂ  di Castello PG 13 39913 43906
Piobbico PU 15 2029 45935
Montone PG 15 1680 47615
Mercatello sul Metauro PU 18 1378 48993
San Giustino PG 19 11297 60290
Cantiano PU 19 2245 62535
Monte Santa Maria Tiberina PG 20 1183 63718
Sant'Angelo in Vado PU 20 4133 67851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Arezzo (99543 inhabitants)
43 Km N of Perugia (166134 inhabitants)
63 Km SW of Pesaro (94582 inhabitants)
64 Km SW of Fano (60888 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
65 Km S of Rimini (147750 inhabitants)
73 Km S of Cesena (96758 inhabitants)
86 Km SE of Forlì (117913 inhabitants)
88 Km E of Siena (53903 inhabitants)
92 Km W of Ancona (100861 inhabitants)
97 Km E of Firenze (382808 inhabitants)
98 Km SE of Faenza (58541 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 0.3 2019-08-20
22:27:26
43.49 12.4 8 2019-08-20
22:39:46
Sala Sismica INGV-Roma 71663761
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 22:27:26 ± 0.1
Latitude 43.49 ± 0.00
Longitude 12.40 ± 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 71663761

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 66
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
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) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.19515
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 71663761
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 22:39:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PARC.HHE. 2019-08-20T22:27:35.18 0.1 undecidable manual S 325 0.1952 111 0.26 92
IV.ATMI.HHE. 2019-08-20T22:27:34.44 0.3 undecidable manual S 211 0.1808 112 0.03 73
IV.ATFO.HHE. 2019-08-20T22:27:34.45 0.3 undecidable manual S 134 0.1772 113 0.16 71
IV.ATLO.EHE. 2019-08-20T22:27:34.15 0.1 undecidable manual S 177 0.1745 113 -0.05 97
IV.NARO.HHZ. 2019-08-20T22:27:34.03 0.1 undecidable manual S 48 0.1808 112 -0.38 90
IV.ATMC.EHE. 2019-08-20T22:27:33.25 0.3 undecidable manual S 254 0.1529 116 -0.18 71
IV.ATBU.EHE. 2019-08-20T22:27:32.48 0.1 undecidable manual S 97 0.1115 124 0.42 90
IV.PIEI.HHZ. 2019-08-20T22:27:32.23 0.1 undecidable manual S 66 0.1115 124 0.19 95
IV.BADI.EHZ. 2019-08-20T22:27:32.07 0.1 undecidable manual S 280 0.1115 124 0.04 98
IV.TB01.DHE.01 2019-08-20T22:27:32.11 0.1 undecidable manual S 165 0.1124 124 0.05 98
IV.TB03.DH1.01 2019-08-20T22:27:31.42 0.1 undecidable manual S 173 0.089 130 0.07 98
IV.ATMI.HHE. 2019-08-20T22:27:31.00 0.3 undecidable manual P 211 0.1808 112 -0.23 70
IV.PARC.HHE. 2019-08-20T22:27:31.92 0.1 undecidable manual P 325 0.1952 111 0.4 89
IV.APEC.HHZ. 2019-08-20T22:27:30.67 0.1 undecidable manual S 15 0.071 136 -0.17 96
IV.NARO.HHZ. 2019-08-20T22:27:30.88 0.1 undecidable manual P 48 0.1808 112 -0.35 91
IV.ATMC.EHE. 2019-08-20T22:27:30.57 0.1 undecidable manual P 254 0.1529 116 -0.09 96
IV.ATPC.HHE. 2019-08-20T22:27:30.19 0.1 undecidable manual S 101 0.0459 148 -0.05 99
IV.ATBU.EHE. 2019-08-20T22:27:30.04 0.1 undecidable manual P 97 0.1115 124 0.17 95
IV.ATFO.HHE. 2019-08-20T22:27:30.89 0.3 undecidable manual P 134 0.1772 113 -0.27 69
IV.ATLO.EHE. 2019-08-20T22:27:30.99 0.3 undecidable manual P 177 0.1745 113 -0.11 72
IV.TB01.DHE.01 2019-08-20T22:27:29.98 0.1 undecidable manual P 165 0.1124 124 0.1 97
IV.APEC.HHZ. 2019-08-20T22:27:29.15 0.1 undecidable manual P 15 0.071 136 -0.02 99
IV.TB03.DH1.01 2019-08-20T22:27:29.54 0.1 undecidable manual P 173 0.089 130 0.08 98
IV.PIEI.HHZ. 2019-08-20T22:27:29.76 0.1 undecidable manual P 66 0.1115 124 -0.1 97
IV.ATPI.EHZ. 2019-08-20T22:27:29.92 0.1 undecidable manual S 173 0.0396 152 -0.2 96
IV.BADI.EHZ. 2019-08-20T22:27:29.90 0.1 undecidable manual P 280 0.1115 124 0.04 98
IV.ATPI.EHZ. 2019-08-20T22:27:28.76 0.1 undecidable manual P 173 0.0396 152 0.01 100
IV.ATPC.HHE. 2019-08-20T22:27:28.84 0.1 undecidable manual P 101 0.0459 148 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHE. ML:0 5.44E-5 0.44 AML other m 2019-08-20T22:27:30.03
IV.ATPI.EHN. ML:0 6.23E-5 0.1 AML other m 2019-08-20T22:27:30.12
IV.APEC.HHE. ML:0.7 8.81E-5 1.84 AML other m 2019-08-20T22:27:31.97
IV.APEC.HHN. ML:0.5 5.375E-5 1.4 AML other m 2019-08-20T22:27:31.78
IV.PIEI.HHN. ML:0.1 1.535E-5 0.44 AML other m 2019-08-20T22:27:32.72
IV.PIEI.HHE. ML:0.1 1.585E-5 0.34 AML other m 2019-08-20T22:27:32.54
IV.ATPI.HNE. ML:0 0.000101518285 1.8688 AML other m 2019-08-20T22:27:30.36
IV.BADI.EHE. ML:0.3 2.3753745E-5 0.1408 AML other m 2019-08-20T22:27:32.47
IV.BADI.EHN. ML:0.3 2.5461195E-5 0.1024 AML other m 2019-08-20T22:27:32.47
IV.NARO.HHE. ML:0.1 8.0533325E-6 0.0512 AML other m 2019-08-20T22:27:34.75
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