Earthquake with magnitude of ML 0.7 on date 28-01-2021 and time 12:02:31 (Italy) in region 4 km NW Sellano (PG)

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

  • 28-01-2021 11:02:31 (UTC)
  • 28-01-2021 12:02:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9190, 12.9040 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
Sellano PG 4 1079 1079
Cerreto di Spoleto PG 11 1075 2154
Monte Cavallo MC 12 145 2299
Preci PG 12 724 3023
Trevi PG 13 8469 11492
Campello sul Clitunno PG 15 2442 13934
Visso MC 15 1107 15041
Foligno PG 17 57155 72196
Vallo di Nera PG 17 364 72560
Serravalle di Chienti MC 18 1070 73630
Pieve Torina MC 19 1458 75088
Ussita MC 19 444 75532
Valtopina PG 20 1398 76930

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
47 Km E of Perugia (166134 inhabitants)
72 Km W of Teramo (54892 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
92 Km SW of Ancona (100861 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
ML 0.7 2021-01-28
11:02:31
42.9192 12.9038 10 2021-01-28
11:10:34
Sala Sismica INGV-Roma 86652221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-28 11:02:31 ± 0.1
Latitude 42.9192 ± 0.0018
Longitude 12.9038 ± 0.0037
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86652221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 260
Semi-minor axis of confidence ellipse (meter) 110
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 178
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67179
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 86652221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-28 11:10:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2021-01-28T11:03:32.06 3.0 undecidable manual Sg 5.83 0
IV.GAVE.EHZ. 2021-01-28T11:02:41.17 0.3 undecidable manual S 182 25.1526 111 -0.09 73
IV.FDMO.HHZ. 2021-01-28T11:02:39.44 0.1 undecidable manual S 49 19.7691 116 -0.09 98
IV.NRCA.HHZ. 2021-01-28T11:02:39.51 0.1 undecidable manual S 119 19.5693 116 0.05 99
IV.GAVE.EHZ. 2021-01-28T11:02:37.30 0.1 undecidable manual P 182 25.1526 111 -0.01 99
IV.PIEI.HHZ. 2021-01-28T11:02:37.81 0.1 undecidable manual P 74.5698 -7.24 0
IV.CESI.HHZ. 2021-01-28T11:02:36.57 0.3 undecidable manual S 0 9.4794 135 0 76
IV.FDMO.HHZ. 2021-01-28T11:02:36.28 0.3 undecidable manual P 49 19.7691 116 -0.03 74
IV.NRCA.HHZ. 2021-01-28T11:02:36.33 0.1 undecidable manual P 119 19.5693 116 0.05 99
IV.CESI.HHZ. 2021-01-28T11:02:34.68 0.1 undecidable manual P 0 9.4794 135 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.7 0.00006875 0.1 AML other m 2021-01-28T11:02:34.96
IV.CESI.HHN. ML:0.7 0.00007095 0.12 AML other m 2021-01-28T11:02:38.10
IV.NRCA.HHN. ML:0.8 0.0000465 0.12 AML other m 2021-01-28T11:02:39.65
IV.FDMO.HHE. ML:0.7 0.0000332 0.14 AML other m 2021-01-28T11:02:40.16
IV.FDMO.HHN. ML:0.5 0.0000242 1.18 AML other m 2021-01-28T11:02:40.30
IV.NRCA.HHE. ML:0.7 0.00003985 0.12 AML other m 2021-01-28T11:02:40.47
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