Earthquake with magnitude of Md 0.5 on date 07-02-2021 and time 04:32:34 (Italy) in region 8 km W Pietralunga (PG)

A magnitude Md 0.5 earthquake occured in region: 8 km W Pietralunga (PG), on

  • 07-02-2021 03:32:34 (UTC)
  • 07-02-2021 04:32:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4660, 12.3440 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 8 2111 2111
CittĂ  di Castello PG 9 39913 42024
Montone PG 11 1680 43704
Apecchio PU 12 1882 45586
Monte Santa Maria Tiberina PG 15 1183 46769
San Giustino PG 16 11297 58066
Umbertide PG 18 16681 74747
Citerna PG 19 3531 78278
Monterchi AR 19 1757 80035
Piobbico PU 19 2029 82064

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Arezzo (99543 inhabitants)
40 Km N of Perugia (166134 inhabitants)
64 Km NW of Foligno (57155 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
69 Km S of Rimini (147750 inhabitants)
69 Km SW of Fano (60888 inhabitants)
75 Km S of Cesena (96758 inhabitants)
83 Km E of Siena (53903 inhabitants)
88 Km S of Forlì (117913 inhabitants)
94 Km E of Firenze (382808 inhabitants)
96 Km W of Ancona (100861 inhabitants)
98 Km SE of Faenza (58541 inhabitants)
99 Km E of Scandicci (50609 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
Md 0.5 2021-02-07
03:32:34
43.4662 12.3438 8 2021-02-07
03:38:38
Sala Sismica INGV-Roma 86897391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-07 03:32:34 ± 0.14
Latitude 43.4662 ± 0.0045
Longitude 12.3438 ± 0.0037
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 86897391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 518
Semi-minor axis of confidence ellipse (meter) 181
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 352
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.22393
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

Md:0.5

Field Value
Value 0.5
Uncertainty 0.5
Num. used stations 2
Type of magnitude Md
Reference to an origin 86897391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-07 03:38:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NARO.HHZ. 2021-02-07T03:32:43.68 0.6 undecidable manual S 50 24.8529 108 -0.39 45
IV.PIEI.HHZ. 2021-02-07T03:32:41.78 0.6 undecidable manual S 63 17.1717 115 0.2 48
IV.ATBU.HNE. 2021-02-07T03:32:41.62 0.6 undecidable manual S 86 16.4724 116 0.26 47
IV.ATMC.EHE. 2021-02-07T03:32:40.09 0.6 undecidable manual S 260 12.3765 123 -0.01 50
IV.BADI.EHZ. 2021-02-07T03:32:39.37 0.6 undecidable manual S 301 9.3795 131 0.11 49
IV.ATPC.HHE. 2021-02-07T03:32:39.37 0.6 undecidable manual S 80 9.2796 131 0.13 49
IV.NARO.HHZ. 2021-02-07T03:32:39.94 0.6 undecidable manual P 50 24.8529 108 -0.29 46
IV.ATBU.HNE. 2021-02-07T03:32:38.76 0.1 undecidable manual P 86 16.4724 116 0.09 97
IV.PIEI.HHZ. 2021-02-07T03:32:38.75 0.6 negative manual P 63 17.1717 115 -0.05 49
IV.APEC.HHZ. 2021-02-07T03:32:37.95 0.6 undecidable manual P 31 11.877 124 0.08 49
IV.ATMC.EHE. 2021-02-07T03:32:37.91 0.1 undecidable manual P 260 12.3765 123 -0.03 99
IV.ATPI.EHZ. 2021-02-07T03:32:37.98 0.6 undecidable manual S 110 4.995 148 -0.29 48
IV.TB03.DH2.01 2021-02-07T03:32:37.38 0.1 undecidable manual P 143 8.9799 132 -0.02 100
IV.BADI.EHZ. 2021-02-07T03:32:37.59 0.6 undecidable manual P 301 9.3795 131 0.13 49
IV.ATPC.HHE. 2021-02-07T03:32:37.53 0.1 undecidable manual P 80 9.2796 131 0.09 99
IV.ATPI.EHZ. 2021-02-07T03:32:36.80 0.1 undecidable manual P 110 4.995 148 -0.09 99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download