Earthquake with magnitude of ML 1.1 on date 19-08-2021 and time 09:09:26 (Italy) in region 5 km NE Poggiodomo (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km NE Poggiodomo (PG), on

  • 19-08-2021 07:09:26 (UTC)
  • 19-08-2021 09:09:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7540, 12.9570 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
Poggiodomo PG 5 117 117
Cascia PG 6 3217 3334
Vallo di Nera PG 8 364 3698
Cerreto di Spoleto PG 8 1075 4773
Sant'Anatolia di Narco PG 10 564 5337
Scheggino PG 11 461 5798
Monteleone di Spoleto PG 11 599 6397
Norcia PG 12 4957 11354
Sellano PG 15 1079 12433
Preci PG 16 724 13157
Campello sul Clitunno PG 16 2442 15599
Spoleto PG 18 38218 53817

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km SE of Foligno (57155 inhabitants)
33 Km NE of Terni (111501 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
61 Km SE of Perugia (166134 inhabitants)
62 Km W of Teramo (54892 inhabitants)
79 Km E of Viterbo (67173 inhabitants)
86 Km N of Guidonia Montecelio (88673 inhabitants)
89 Km N of Tivoli (56533 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 1.1 2021-08-19
07:09:26
42.7545 12.9568 10 2021-08-19
07:24:12
Sala Sismica INGV-Roma 94363811
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-19 07:09:26 ± 0.1
Latitude 42.7545 ± 0.0054
Longitude 12.9568 ± 0.0086
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 94363811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 717
Semi-minor axis of confidence ellipse (meter) 483
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 720.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.31027
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 94363811
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-19 07:24:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MOMA.HNZ. 2021-08-19T07:09:37.13 0.6 undecidable manual S 280 31.9458 50 -0.16 47
IV.RM33.HNZ. 2021-08-19T07:09:37.65 0.3 undecidable manual S 142 34.4433 50 -0.29 68
IV.FDMO.HHZ. 2021-08-19T07:09:37.45 0.3 undecidable manual S 19 33.0447 50 -0.12 71
IV.CESI.HHZ. 2021-08-19T07:09:36.20 0.3 undecidable manual S 351 28.0497 50 -0.06 72
IV.MC2.EHZ. 2021-08-19T07:09:35.70 0.3 undecidable manual S 47 25.6521 111 0.15 71
IV.RM33.HNZ. 2021-08-19T07:09:34.30 0.3 undecidable manual P 142 34.4433 50 1.4 43
IV.MOMA.HNZ. 2021-08-19T07:09:32.84 0.6 undecidable manual P 280 31.9458 50 0.31 45
IV.FDMO.HHZ. 2021-08-19T07:09:32.50 0.3 undecidable manual P 19 33.0447 50 -0.19 70
IV.LNSS.HHZ. 2021-08-19T07:09:32.85 0.3 undecidable manual S 158 18.1707 118 -0.32 70
IV.NRCA.HHZ. 2021-08-19T07:09:32.35 0.3 undecidable manual S 56 15.4734 122 -0.03 74
IV.MC2.EHZ. 2021-08-19T07:09:31.56 0.3 undecidable manual P 47 25.6521 111 0.04 73
IV.CESI.HHZ. 2021-08-19T07:09:31.79 0.3 undecidable manual P 351 28.0497 50 -0.14 71
IV.GAVE.EHZ. 2021-08-19T07:09:30.49 0.1 undecidable manual S 217 8.5803 139 -0.05 100
IV.LNSS.HHZ. 2021-08-19T07:09:29.99 0.3 undecidable manual P 158 18.1707 118 -0.16 72
IV.NRCA.HHZ. 2021-08-19T07:09:29.72 0.3 undecidable manual P 56 15.4734 122 0.03 74
IV.GAVE.EHZ. 2021-08-19T07:09:28.78 0.1 undecidable manual P 217 8.5803 139 0.15 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.2 0.000248640875 0.0992 AML other m 2021-08-19T07:09:30.79
IV.GAVE.EHE. ML:1.4 0.00031796609999999996 0.16 AML other m 2021-08-19T07:09:30.68
IV.NRCA.HHN. ML:0.8 0.00005595 0.12 AML other m 2021-08-19T07:09:32.47
IV.NRCA.HHE. ML:1.2 0.00014450000000000002 0.12 AML other m 2021-08-19T07:09:32.57
IV.GAVE.HNE. ML:1.4 0.00032740025 0.1696 AML other m 2021-08-19T07:09:30.68
IV.GAVE.HNN. ML:1.1 0.0001904148 0.8512 AML other m 2021-08-19T07:09:31.04
IV.NRCA.HNE. ML:1.2 0.0001385108 0.8096 AML other m 2021-08-19T07:09:30.32
IV.NRCA.HNN. ML:1.1 0.000123310585 0.7008 AML other m 2021-08-19T07:09:32.18
IV.FDMO.HHE. ML:0.5 0.000013699885 0.1792 AML other m 2021-08-19T07:09:37.97
IV.FDMO.HHN. ML:0.8 0.00002380791 1.2416 AML other m 2021-08-19T07:09:38.27
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