Earthquake with magnitude of ML 0.7 on date 20-08-2019 and time 05:56:36 (UTC) in region 4 km W Pietralunga (PG)

A magnitude ML 0.7 earthquake occured in region: 4 km W Pietralunga (PG), on

  • 20-08-2019 05:56:36 (UTC)
  • 20-08-2019 07:56:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.45, 12.38 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 4 2111 2111
Montone PG 10 1680 3791
CittĂ  di Castello PG 12 39913 43704
Apecchio PU 13 1882 45586
Umbertide PG 16 16681 62267
Monte Santa Maria Tiberina PG 18 1183 63450
Gubbio PG 19 32216 95666
Piobbico PU 19 2029 97695
Cantiano PU 20 2245 99940

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km N of Perugia (166134 inhabitants)
41 Km E of Arezzo (99543 inhabitants)
60 Km NW of Foligno (57155 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
68 Km SW of Fano (60888 inhabitants)
70 Km S of Rimini (147750 inhabitants)
78 Km S of Cesena (96758 inhabitants)
86 Km E of Siena (53903 inhabitants)
91 Km SE of Forlì (117913 inhabitants)
94 Km W of Ancona (100861 inhabitants)
98 Km E of Firenze (382808 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 2019-08-20
05:56:36
43.45 12.38 8 2019-08-20
06:07:37
Sala Sismica INGV-Roma 71641741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-20 05:56:36 ± 0.1
Latitude 43.45 ± 0.00
Longitude 12.38 ± 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 71641741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 290
Semi-minor axis of confidence ellipse (meter) 59
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 25
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
Epicentral distance of station farthest from the epicenter (degree) 0.24911
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 71641741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-20 06:07:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2019-08-20T05:57:22.81 3.0 undecidable manual S 0.51 0
IV.FDMO.HHZ. 2019-08-20T05:56:54.06 3.0 undecidable manual S 0
IV.CSP1.EHZ. 2019-08-20T05:56:53.52 3.0 undecidable manual S 0
IV.CSP1.EHZ. 2019-08-20T05:56:51.42 3.0 undecidable manual P -0.74 0
IV.FDMO.HHZ. 2019-08-20T05:56:51.65 3.0 positive manual P 0.2 0
IV.PARC.HHZ. 2019-08-20T05:56:46.16 0.6 undecidable manual S 332 0.2284 107 0.08 49
IV.ATTE.HHZ. 2019-08-20T05:56:46.30 0.6 undecidable manual S 185 0.2491 106 -0.54 44
IV.NARO.HHZ. 2019-08-20T05:56:45.36 0.3 undecidable manual S 41 0.2176 108 -0.33 70
IV.ATMC.EHZ. 2019-08-20T05:56:43.02 0.3 undecidable manual S 270 0.1394 117 0.13 74
IV.PIEI.HHZ. 2019-08-20T05:56:43.26 0.3 undecidable manual S 51 0.1412 117 0.3 72
IV.ATFO.HHZ. 2019-08-20T05:56:43.67 0.6 undecidable manual S 120 0.1574 114 0.15 49
IV.ATLO.EHZ. 2019-08-20T05:56:42.69 0.6 undecidable manual S 173 0.1322 118 0.05 51
IV.BADI.EHZ. 2019-08-20T05:56:42.42 0.6 undecidable manual S 302 0.1196 121 0.18 49
IV.PARC.HHZ. 2019-08-20T05:56:42.06 0.3 undecidable manual P 332 0.2284 107 -0.13 73
IV.ATTE.HHZ. 2019-08-20T05:56:42.51 0.6 positive manual P 185 0.2491 106 -0.12 49
IV.FRON.EHZ. 2019-08-20T05:56:42.37 3.0 undecidable manual S 0
IV.ATBU.EHZ. 2019-08-20T05:56:42.66 0.6 undecidable manual S 76 0.1223 120 0.33 48
IV.NARO.HHZ. 2019-08-20T05:56:41.48 0.6 positive manual P 41 0.2176 108 -0.48 45
IV.PIEI.HHZ. 2019-08-20T05:56:40.29 0.3 undecidable manual P 51 0.1412 117 -0.1 75
IV.ATFO.HHZ. 2019-08-20T05:56:40.76 0.3 negative manual P 120 0.1574 114 0.05 75
IV.ATBU.EHZ. 2019-08-20T05:56:40.14 0.3 undecidable manual P 76 0.1223 120 0.12 75
IV.ATPC.HHZ. 2019-08-20T05:56:40.56 0.6 undecidable manual S 57 0.063 139 0.03 51
IV.ATMC.EHZ. 2019-08-20T05:56:40.37 0.3 undecidable manual P 270 0.1394 117 0.03 76
IV.ATLO.EHZ. 2019-08-20T05:56:40.23 0.3 undecidable manual P 173 0.1322 118 0.03 76
IV.BADI.EHZ. 2019-08-20T05:56:40.08 0.1 negative manual P 302 0.1196 121 0.11 100
IV.TB01.DHZ.01 2019-08-20T05:56:40.95 0.3 undecidable manual S 150 0.0746 134 0.11 76
IV.TB01.DHZ.01 2019-08-20T05:56:39.30 0.3 undecidable manual P 150 0.0746 134 0.14 75
IV.ATPI.HNZ. 2019-08-20T05:56:39.26 0.3 undecidable manual S 70 0.0135 169 -0.41 72
IV.ATPC.HHZ. 2019-08-20T05:56:39.02 0.3 undecidable manual P 57 0.063 139 0.04 77
IV.ATPI.HNZ. 2019-08-20T05:56:38.36 0.3 undecidable manual P 70 0.0135 169 -0.12 76
IV.FRON.EHZ. 2019-08-20T05:56:38.12 3.0 undecidable manual P 0
IV.TB03.DHZ.01 2019-08-20T05:56:38.88 0.3 undecidable manual P 157 0.0486 146 0.1 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHN. ML:1 0.0001124 0.3 AML other m 2019-08-20T05:56:42.57
IV.BADI.EHE. ML:1 0.0001145 0.2 AML other m 2019-08-20T05:56:43.06
IV.PIEI.HHN. ML:0.5 2.925E-5 0.36 AML other m 2019-08-20T05:56:43.73
IV.PIEI.HHE. ML:0.6 3.375E-5 0.1 AML other m 2019-08-20T05:56:44.09
IV.NARO.HHN. ML:0.6 2.355E-5 0.16 AML other m 2019-08-20T05:56:45.56
IV.NARO.HHE. ML:0.6 2.32E-5 0.64 AML other m 2019-08-20T05:56:45.40
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