Earthquake with magnitude of ML 1.3 on date 19-09-2021 and time 10:51:53 (Italy) in region 1 km N Poggiodomo (PG)

A magnitude ML 1.3 earthquake occured in region: 1 km N Poggiodomo (PG), on

  • 19-09-2021 08:51:53 (UTC)
  • 19-09-2021 10:51:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.726, 12.938 at 14 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 2 117 117
Cascia PG 6 3217 3334
Vallo di Nera PG 8 364 3698
Monteleone di Spoleto PG 8 599 4297
Sant'Anatolia di Narco PG 8 564 4861
Scheggino PG 9 461 5322
Cerreto di Spoleto PG 11 1075 6397
Norcia PG 15 4957 11354
Spoleto PG 16 38218 49572
Ferentillo TR 17 1913 51485
Campello sul Clitunno PG 17 2442 53927
Polino TR 17 233 54160
Sellano PG 18 1079 55239
Leonessa RI 18 2435 57674
Preci PG 19 724 58398
Montefranco TR 20 1276 59674

Municipalities with at least 50000 inhabitants

An earthquake occurred to
30 Km NE of Terni (111501 inhabitants)
32 Km SE of Foligno (57155 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
62 Km SE of Perugia (166134 inhabitants)
63 Km W of Teramo (54892 inhabitants)
76 Km E of Viterbo (67173 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
85 Km N of Tivoli (56533 inhabitants)
100 Km NE of Roma (2864731 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 1.3 2021-09-19
08:51:53
42.7257 12.9385 14 2021-09-19
09:10:27
Sala Sismica INGV-Roma 95627111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-19 08:51:53 ± 0.27
Latitude 42.7257 ± 0.0117
Longitude 12.9385 ± 0.0122
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95627111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1193
Semi-minor axis of confidence ellipse (meter) 959
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 1190
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 174
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.38851
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 95627111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-19 09:10:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HVZN.HHZ. 2021-09-19T08:53:20.81 3.0 undecidable manual Pn 3.4 0
IV.SLCN.HHZ. 2021-09-19T08:53:17.81 3.0 undecidable manual Sn -4.22 0
IV.ACATE.EHZ. 2021-09-19T08:53:16.36 3.0 undecidable manual Pn -2.66 0
IV.MBAL.EHZ. 2021-09-19T08:53:09.53 3.0 undecidable manual Sn -2.79 0
IX.MNT3.EHZ.02 2021-09-19T08:53:06.48 3.0 undecidable manual Sn 0.04 0
IV.IST3.HHZ. 2021-09-19T08:52:58.26 3.0 positive manual Pn 0.6 0
IV.POFI.HHZ. 2021-09-19T08:52:37.17 3.0 undecidable manual S 0.93 0
IV.MAGA.HHZ. 2021-09-19T08:52:35.15 3.0 negative manual Pn -1.79 0
IV.BRSN.EHZ. 2021-09-19T08:52:34.57 3.0 undecidable manual S 2.73 0
IV.CPGN.EHZ. 2021-09-19T08:52:14.94 3.0 undecidable manual S -2.34 0
IV.MML1.HNZ. 2021-09-19T08:52:08.15 0.6 undecidable manual S 4 0.3885 95 0.31 46
IV.ASSB.HHZ. 2021-09-19T08:52:07.22 0.6 undecidable manual S 327 0.3768 95 -0.29 48
IV.CESI.HHZ. 2021-09-19T08:52:04.62 0.6 undecidable manual S 355 0.2806 98 -0.03 51
IV.MC2.EHZ. 2021-09-19T08:52:04.25 0.6 undecidable manual S 45 0.2608 99 0.16 50
IV.ARVD.HHZ. 2021-09-19T08:52:03.19 3.0 undecidable manual S 1.31 0
IV.MML1.HNZ. 2021-09-19T08:52:02.15 0.6 undecidable manual P 4 0.3885 95 0.22 47
IV.ASSB.HHZ. 2021-09-19T08:52:01.55 0.3 undecidable manual P 327 0.3768 95 -0.19 73
IV.NRCA.HHZ. 2021-09-19T08:52:01.30 0.3 undecidable manual S 50 0.1682 109 -0.11 75
IV.CESI.HHZ. 2021-09-19T08:52:00.17 0.6 undecidable manual P 355 0.2806 98 0.08 50
IV.ARRO.EHZ. 2021-09-19T08:51:59.34 3.0 negative manual P 0.35 0
IV.MC2.EHZ. 2021-09-19T08:51:59.39 0.3 undecidable manual P 45 0.2608 99 -0.37 70
IV.GAVE.EHZ. 2021-09-19T08:51:58.42 0.3 undecidable manual S 224 0.0468 154 -0.23 76
IV.MPAG.EHZ. 2021-09-19T08:51:58.24 3.0 undecidable manual P -0.23 0
IV.NRCA.HHZ. 2021-09-19T08:51:58.40 0.3 undecidable manual P 50 0.1682 109 0.19 75
IV.LNSS.HHZ. 2021-09-19T08:51:57.82 3.0 undecidable manual P 0
IV.GAVE.EHZ. 2021-09-19T08:51:56.90 0.1 positive manual P 224 0.0468 154 0.28 100
IV.SEF1.HNZ. 2021-09-19T08:51:54.29 3.0 undecidable manual S 0
IV.MF5.EHZ. 2021-09-19T08:51:52.68 3.0 undecidable manual P -2.84 0
IV.SEF1.HNZ. 2021-09-19T08:51:50.18 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.4 0.0002888699 0.16 AML other m 2021-09-19T08:51:58.50
IV.GAVE.EHE. ML:1.5 0.0003595 0.12 AML other m 2021-09-19T08:51:58.64
IV.NRCA.HHE. ML:1 7.660608E-5 0.1024 AML other m 2021-09-19T08:52:01.44
IV.LNSS.HHE. ML:0.8 5.305E-5 0.1 AML other m 2021-09-19T08:52:01.75
IV.NRCA.HHN. ML:0.8 3.76E-5 0.28 AML other m 2021-09-19T08:52:02.62
IV.LNSS.HHN. ML:0.6 3.666875E-5 0.1792 AML other m 2021-09-19T08:52:02.47
IV.MAGA.HHN. ML:3.2 0.00010875 0.14 AML other m 2021-09-19T08:53:09.49
IV.MAGA.HHE. ML:3.4 0.0001506956 0.2368 AML other m 2021-09-19T08:52:52.84
IV.MF5.EHE. ML:1.3 4.706516E-5 9.6192 AML other m 2021-09-19T08:51:55.19
IV.MF5.EHN. ML:1.3 4.4294785E-5 8.6784 AML other m 2021-09-19T08:51:58.56
IV.GAVE.HNE. ML:1.5 0.0003693124 0.1088 AML other m 2021-09-19T08:51:58.64
IV.GAVE.HNN. ML:1.2 0.00019241695 1.7408 AML other m 2021-09-19T08:51:58.26
IV.LNSS.HNE. ML:1.8 0.000512321 22.784 AML other m 2021-09-19T08:52:24.32
IV.LNSS.HNN. ML:1.7 0.00040667625 11.0784 AML other m 2021-09-19T08:52:23.47
IV.MPAG.EHE. ML:1.2 1.5882278E-5 1.3376 AML other m 2021-09-19T08:52:20.89
IV.MPAG.EHN. ML:1.3 1.983839E-5 1.5232 AML other m 2021-09-19T08:52:20.02
IV.MPAG.HNE. ML:2.3 0.00017712665 11.1296 AML other m 2021-09-19T08:52:25.62
IV.MPAG.HNN. ML:2.6 0.00037363524 10.6304 AML other m 2021-09-19T08:52:24.62
IV.NRCA.HNE. ML:1.2 0.000112344255 1.9328 AML other m 2021-09-19T08:52:06.11
IV.NRCA.HNN. ML:1.4 0.0001893077 0.8896 AML other m 2021-09-19T08:51:58.57
IV.ARRO.EHE. ML:0.5 2.2470675E-5 0.1984 AML other m 2021-09-19T08:52:02.66
IV.ARRO.EHN. ML:0.5 1.76784345E-5 0.1984 AML other m 2021-09-19T08:52:04.73
IV.IST3.HHE. ML:4.3 0.00068401555 0.1024 AML other m 2021-09-19T08:52:59.29
IV.IST3.HHN. ML:4.2 0.00063033845 0.1024 AML other m 2021-09-19T08:53:02.76
IV.IST3.HNE. ML:4.1 0.0004625903 0.1024 AML other m 2021-09-19T08:52:59.34
IV.IST3.HNN. ML:4.1 0.0004399961 0.1024 AML other m 2021-09-19T08:53:02.76
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