Earthquake with magnitude of ML 0.3 on date 29-10-2021 and time 01:03:47 (Italy) in region 4 km NW Ussita (MC)

A magnitude ML 0.3 earthquake occured in region: 4 km NW Ussita (MC), on

  • 28-10-2021 23:03:47 (UTC)
  • 29-10-2021 01:03:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.975, 13.12 at 9 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
Ussita MC 4 444 444
Visso MC 5 1107 1551
Fiordimonte MC 7 202 1753
Fiastra MC 8 559 2312
Acquacanina MC 8 121 2433
Bolognola MC 9 142 2575
Castelsantangelo sul Nera MC 9 281 2856
Pieve Torina MC 10 1458 4314
Monte Cavallo MC 10 145 4459
Pievebovigliana MC 10 866 5325
Preci PG 12 724 6049
Muccia MC 14 915 6964
Sarnano MC 16 3264 10228
Serravalle di Chienti MC 17 1070 11298
Sellano PG 18 1079 12377
Montefortino FM 18 1178 13555
Camerino MC 18 6974 20529
Cessapalombo MC 19 512 21041
Montemonaco AP 19 604 21645
Amandola FM 19 3629 25274

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
59 Km NW of Teramo (54892 inhabitants)
60 Km NE of Terni (111501 inhabitants)
61 Km E of Perugia (166134 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
79 Km SW of Ancona (100861 inhabitants)
97 Km S of Fano (60888 inhabitants)
99 Km NW of Montesilvano (53738 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 2021-10-28
23:03:47
42.9748 13.1197 9 2021-10-28
23:10:15
Sala Sismica INGV-Roma 97047421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-28 23:03:47 ± 0.1
Latitude 42.9748 ± 0.0018
Longitude 13.1197 ± 0.0025
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97047421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 68
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 250
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.06565
Epicentral distance of station farthest from the epicenter (degree) 0.17537
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.3

Field Value
Value 0.3
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 97047421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-28 23:10:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2021-10-28T23:03:55.09 0.1 undecidable manual S 116 0.1691 116 -0.12 96
IV.MML1.EHZ. 2021-10-28T23:03:55.24 0.3 undecidable manual S 322 0.1754 115 -0.2 71
IV.CESI.HHZ. 2021-10-28T23:03:55.00 0.1 undecidable manual S 281 0.1601 117 0.1 97
IV.CSP1.EHZ. 2021-10-28T23:03:54.08 0.1 undecidable manual S 28 0.1322 122 0.1 97
IV.NRCA.HHN. 2021-10-28T23:03:54.20 0.3 undecidable manual S 182 0.1412 120 -0.06 73
IV.MMO1.EHZ. 2021-10-28T23:03:52.12 0.1 undecidable manual P 116 0.1691 116 -0.04 98
IT.MTCL.HGZ. 2021-10-28T23:03:52.67 0.1 undecidable manual S 282 0.0899 132 0.01 100
IV.MML1.EHZ. 2021-10-28T23:03:52.17 0.1 undecidable manual P 322 0.1754 115 -0.11 96
IV.CESI.HHZ. 2021-10-28T23:03:51.85 0.1 undecidable manual P 281 0.1601 117 -0.12 96
IV.NRCA.HHN. 2021-10-28T23:03:51.76 0.1 undecidable manual P 182 0.1412 120 0.15 96
IV.FDMO.HHZ. 2021-10-28T23:03:51.96 0.1 undecidable manual S 339 0.0657 141 -0.07 99
IV.CSP1.EHZ. 2021-10-28T23:03:51.52 0.1 undecidable manual P 28 0.1322 122 0.09 98
IV.FDMO.HHZ. 2021-10-28T23:03:50.43 0.1 undecidable manual P 339 0.0657 141 0.12 98
IT.MTCL.HGZ. 2021-10-28T23:03:50.76 0.1 undecidable manual P 282 0.0899 132 0.08 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.3 3.165E-5 0.18 AML other m 2021-10-28T23:03:52.07
IV.FDMO.HHN. ML:0.6 6.495E-5 0.16 AML other m 2021-10-28T23:03:52.27
IV.CSP1.EHE. ML:0.4 2.3025705E-5 0.192 AML other m 2021-10-28T23:03:54.21
IV.CSP1.EHN. ML:0.5 3.1175622E-5 0.2304 AML other m 2021-10-28T23:03:55.21
IV.CESI.HHE. ML:-0.2 5.97780765E-6 0.3968 AML other m 2021-10-28T23:03:55.29
IV.CESI.HHN. ML:0.1 8.197797E-6 0.192 AML other m 2021-10-28T23:03:57.12
IV.MML1.EHE. ML:0.1 8.7433005E-6 0.3712 AML other m 2021-10-28T23:03:55.59
IV.MML1.EHN. ML:0.3 1.304554E-5 0.2048 AML other m 2021-10-28T23:03:55.74
IV.MML1.HNN. ML:0.8 5.5634965E-5 1.152 AML other m 2021-10-28T23:03:55.52
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