Earthquake with magnitude of ML 1.1 on date 16-01-2021 and time 06:30:12 (Italy) in region 4 km E Pietralunga (PG)

A magnitude ML 1.1 earthquake occured in region: 4 km E Pietralunga (PG), on

  • 16-01-2021 05:30:12 (UTC)
  • 16-01-2021 06:30:12 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.45, 12.48 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 4 2111 2111
Cantiano PU 12 2245 4356
Gubbio PG 13 32216 36572
Apecchio PU 13 1882 38454
Montone PG 16 1680 40134
Scheggia e Pascelupo PG 16 1393 41527
Piobbico PU 16 2029 43556
Cagli PU 17 8731 52287
CittĂ  di Castello PG 20 39913 92200
Umbertide PG 20 16681 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
58 Km NW of Foligno (57155 inhabitants)
62 Km SW of Fano (60888 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
69 Km S of Rimini (147750 inhabitants)
79 Km S of Cesena (96758 inhabitants)
86 Km W of Ancona (100861 inhabitants)
93 Km SE of Forlì (117913 inhabitants)
94 Km E of Siena (53903 inhabitants)
99 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 1.1 2021-01-16
05:30:12
43.45 12.48 10 2021-01-16
05:37:44
Sala Sismica INGV-Roma 86291251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-16 05:30:12 ± 0.06
Latitude 43.45 ± 0.00
Longitude 12.48 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86291251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 351
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 281
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 120
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.09623
Epicentral distance of station farthest from the epicenter (degree) 0.24821
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.7
Num. used stations 6
Type of magnitude ML
Reference to an origin 86291251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-16 05:37:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2021-01-16T05:30:20.95 0.6 undecidable manual S 170 0.1871 116 0.1 51
IV.FRON.EHZ. 2021-01-16T05:30:20.98 0.6 undecidable manual S 68 0.1898 116 0.03 51
IV.NARO.HHZ. 2021-01-16T05:30:20.56 0.6 undecidable manual S 24 0.1781 117 0.02 51
IV.BADI.EHZ. 2021-01-16T05:30:20.67 0.6 undecidable manual S 290 0.1835 117 -0.05 51
IV.PE3.EHZ. 2021-01-16T05:30:18.96 0.3 negative manual P 2 0.2482 50 0.36 69
IV.PIEI.HHZ. 2021-01-16T05:30:18.17 0.6 undecidable manual S 24 0.0962 134 0.23 51
IV.APEC.HHZ. 2021-01-16T05:30:18.50 0.6 undecidable manual S 338 0.1196 128 -0.13 50
IV.NARO.HHZ. 2021-01-16T05:30:17.14 0.1 positive manual P 24 0.1781 117 -0.14 100
IV.BADI.EHZ. 2021-01-16T05:30:17.32 0.3 positive manual P 290 0.1835 117 -0.06 77
IV.MURB.HHZ. 2021-01-16T05:30:17.43 1.0 positive manual P 170 0.1871 116 -0.03 25
IV.FRON.EHZ. 2021-01-16T05:30:17.47 0.3 undecidable manual P 68 0.1898 116 -0.05 76
IV.APEC.HHZ. 2021-01-16T05:30:16.17 0.6 undecidable manual P 338 0.1196 128 -0.01 52
IV.PIEI.HHZ. 2021-01-16T05:30:15.81 0.6 positive manual P 24 0.0962 134 0.03 52
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:1 0.0001125 0.32 AML other m 2021-01-16T05:30:18.28
IV.PIEI.HHE. ML:0.8 8.655E-5 0.18 AML other m 2021-01-16T05:30:18.45
IV.APEC.HHE. ML:1 0.0001141 1.58 AML other m 2021-01-16T05:30:18.05
IV.APEC.HHN. ML:1.1 0.000123 0.66 AML other m 2021-01-16T05:30:18.85
IV.SENI.HNE. ML:3.5 0.0055 0.18 AML other m 2021-01-16T05:30:49.51
IV.SENI.HNN. ML:3.7 0.008665 0.42 AML other m 2021-01-16T05:30:50.36
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