Earthquake with magnitude of ML 0.3 on date 17-11-2021 and time 17:25:17 (Italy) in region 3 km E Nocera Umbra (PG)

A magnitude ML 0.3 earthquake occured in region: 3 km E Nocera Umbra (PG), on

  • 17-11-2021 16:25:17 (UTC)
  • 17-11-2021 17:25:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.115, 12.832 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
Nocera Umbra PG 3 5839 5839
Valtopina PG 9 1398 7237
Sefro MC 10 422 7659
Serravalle di Chienti MC 11 1070 8729
Fiuminata MC 12 1402 10131
Gualdo Tadino PG 14 15208 25339
Pioraco MC 14 1134 26473
Muccia MC 18 915 27388
Esanatoglia MC 18 2034 29422
Assisi PG 18 28299 57721
Spello PG 19 8645 66366
Monte Cavallo MC 19 145 66511
Valfabbrica PG 19 3389 69900
Pieve Torina MC 19 1458 71358
Camerino MC 19 6974 78332

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Foligno (57155 inhabitants)
36 Km E of Perugia (166134 inhabitants)
63 Km N of Terni (111501 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
83 Km S of Fano (60888 inhabitants)
86 Km E of Arezzo (99543 inhabitants)
87 Km NW of Teramo (54892 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
97 Km NW of L'Aquila (69753 inhabitants)
98 Km NE of Viterbo (67173 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 0.3 2021-11-17
16:25:17
43.1147 12.8317 10 2021-11-17
16:36:00
Sala Sismica INGV-Roma 97524311
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-17 16:25:17 ± 0.13
Latitude 43.1147 ± 0.0054
Longitude 12.8317 ± 0.0062
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 97524311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 588
Semi-minor axis of confidence ellipse (meter) 257
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 150
Circular confidence region, given by single value of horizontal uncertainty (meter) 590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27339
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 97524311
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-17 16:36:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PP3.EHZ. 2021-11-17T16:25:37.44 3.0 undecidable manual S 0.03 0
IV.MMO1.EHZ. 2021-11-17T16:25:32.41 3.0 undecidable manual S 0
IV.CSP1.EHZ. 2021-11-17T16:25:28.19 0.6 undecidable manual S 95 0.2734 50 0.09 49
IV.FDMO.HHZ. 2021-11-17T16:25:25.63 0.6 undecidable manual S 113 0.2023 113 -0.13 49
IV.SNTG.HHZ. 2021-11-17T16:25:24.17 0.6 undecidable manual S 29 0.161 119 -0.16 49
IV.MMO1.EHZ. 2021-11-17T16:25:23.52 3.0 undecidable manual P -0.17 0
IV.ASSB.HHZ. 2021-11-17T16:25:23.69 0.3 undecidable manual S 240 0.1457 121 -0.12 75
IV.CSP1.EHZ. 2021-11-17T16:25:23.29 1.0 negative manual P 95 0.2734 50 -0.23 24
IV.MML1.EHZ. 2021-11-17T16:25:22.72 0.6 undecidable manual S 91 0.1025 131 0.26 49
IV.FDMO.HHZ. 2021-11-17T16:25:22.00 0.1 undecidable manual P 113 0.2023 113 -0.17 98
IV.CESI.HHZ. 2021-11-17T16:25:22.86 0.3 undecidable manual S 154 0.1223 126 -0.19 74
IV.SNTG.HHZ. 2021-11-17T16:25:21.25 0.1 undecidable manual P 29 0.161 119 -0.09 100
IV.ASSB.HHZ. 2021-11-17T16:25:21.68 1.0 undecidable manual P 240 0.1457 121 0.64 22
IV.MML1.EHZ. 2021-11-17T16:25:20.50 0.1 negative manual P 91 0.1025 131 0.24 98
IV.CESI.HHZ. 2021-11-17T16:25:20.89 0.6 negative manual P 154 0.1223 126 0.28 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:0.5 3.344122E-5 0.256 AML other m 2021-11-17T16:25:23.03
IV.MML1.EHN. ML:-0.1 1.1347415E-5 0.1024 AML other m 2021-11-17T16:25:22.93
IV.CESI.HHE. ML:0.4 2.562005E-5 0.7808 AML other m 2021-11-17T16:25:23.37
IV.CESI.HHN. ML:0.3 1.863805E-5 0.4224 AML other m 2021-11-17T16:25:23.76
IV.SNTG.HHE. ML:0.4 1.9666892E-5 0.3072 AML other m 2021-11-17T16:25:25.29
IV.SNTG.HHN. ML:0.1 1.1735713E-5 0.1664 AML other m 2021-11-17T16:25:26.53
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