Earthquake with magnitude of ML 0.9 on date 09-04-2021 and time 00:21:03 (UTC) in region 7 km NW Sellano (PG)

A magnitude ML 0.9 earthquake occured in region: 7 km NW Sellano (PG), on

  • 09-04-2021 00:21:03 (UTC)
  • 09-04-2021 02:21:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9450, 12.8770 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 7 1079 1079
Monte Cavallo MC 12 145 1224
Trevi PG 13 8469 9693
Foligno PG 14 57155 66848
Cerreto di Spoleto PG 14 1075 67923
Preci PG 15 724 68647
Serravalle di Chienti MC 16 1070 69717
Campello sul Clitunno PG 16 2442 72159
Valtopina PG 16 1398 73557
Visso MC 17 1107 74664
Spello PG 18 8645 83309
Pieve Torina MC 18 1458 84767
Montefalco PG 19 5679 90446
Vallo di Nera PG 20 364 90810
Nocera Umbra PG 20 5839 96649

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
47 Km NE of Terni (111501 inhabitants)
75 Km W of Teramo (54892 inhabitants)
79 Km NW of L'Aquila (69753 inhabitants)
86 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 inhabitants)
99 Km SE of Arezzo (99543 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 0.9 2021-04-09
00:21:03
42.9452 12.8767 10 2021-04-09
00:46:09
Sala Sismica INGV-Roma 88925451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-09 00:21:03 ± 0.04
Latitude 42.9452 ± 0.0027
Longitude 12.8767 ± 0.0037
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 88925451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 319
Semi-minor axis of confidence ellipse (meter) 239
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33275
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 88925451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-09 00:46:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2021-04-09T00:21:16.31 0.3 undecidable manual S 98 36.9297 50 0.01 73
IV.ATCC.EHZ. 2021-04-09T00:21:15.20 0.3 undecidable manual S 324 32.8449 50 0 73
IV.MOMA.HNZ. 2021-04-09T00:21:14.26 0.6 undecidable manual S 238 29.4483 50 -0.05 49
IV.GAVE.EHZ. 2021-04-09T00:21:13.96 0.3 undecidable manual S 177 28.1496 50 0.01 74
IV.NRCA.HHZ. 2021-04-09T00:21:12.22 0.3 undecidable manual S 123 22.9548 114 -0.21 71
IV.FDMO.HHZ. 2021-04-09T00:21:11.18 0.3 undecidable manual S 59 19.869 117 -0.29 71
IV.MML1.EHZ. 2021-04-09T00:21:11.48 0.3 undecidable manual S 22 20.1687 116 -0.09 74
IV.ASSB.HHZ. 2021-04-09T00:21:11.49 0.3 undecidable manual S 301 20.7681 116 -0.25 71
IV.MMO1.EHZ. 2021-04-09T00:21:11.12 0.3 undecidable manual P 98 36.9297 50 0.12 71
IV.MOMA.HNZ. 2021-04-09T00:21:10.04 0.3 undecidable manual P 238 29.4483 50 0.19 71
IV.ATCC.EHZ. 2021-04-09T00:21:10.26 0.1 undecidable manual P 324 32.8449 50 -0.1 96
IV.GAVE.EHZ. 2021-04-09T00:21:09.59 0.3 undecidable manual P 177 28.1496 50 -0.05 73
IV.FDMO.HHZ. 2021-04-09T00:21:08.21 0.1 undecidable manual P 59 19.869 117 0 100
IT.MTCL.HGZ. 2021-04-09T00:21:08.99 0.3 undecidable manual S 61 11.2776 131 0 76
IV.MML1.EHZ. 2021-04-09T00:21:08.29 0.1 undecidable manual P 22 20.1687 116 0.02 100
IV.ASSB.HHZ. 2021-04-09T00:21:08.31 0.1 undecidable manual P 301 20.7681 116 -0.05 99
IV.CESI.HHZ. 2021-04-09T00:21:08.12 0.3 undecidable manual S 19 6.993 145 0.13 75
IV.NRCA.HHZ. 2021-04-09T00:21:08.69 0.1 undecidable manual P 123 22.9548 114 -0.07 98
IT.MTCL.HGZ. 2021-04-09T00:21:07.07 0.3 undecidable manual P 61 11.2776 131 0.29 72
IV.CESI.HHZ. 2021-04-09T00:21:06.52 0.1 undecidable manual P 19 6.993 145 0.32 96
IV.FEMA.HNZ. 2021-04-09T00:21:05.51 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.1 0.0001895 0.06 AML other m 2021-04-09T00:21:08.26
IV.CESI.HHN. ML:1.2 0.00023549999999999998 0.12 AML other m 2021-04-09T00:21:08.32
IV.FDMO.HHE. ML:0.5 0.000024299999999999998 1.28 AML other m 2021-04-09T00:21:11.29
IV.ASSB.HHE. ML:0.9 0.000059499999999999996 0.08 AML other m 2021-04-09T00:21:11.75
IV.ASSB.HHN. ML:0.7 0.00003575 0.64 AML other m 2021-04-09T00:21:11.87
IV.FDMO.HHN. ML:0.4 0.00002029 1.36 AML other m 2021-04-09T00:21:12.21
IV.NRCA.HHN. ML:1.0 0.00005945 0.12 AML other m 2021-04-09T00:21:12.37
IV.NRCA.HHE. ML:0.9 0.0000491 0.96 AML other m 2021-04-09T00:21:12.88
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