Earthquake with magnitude of ML 0.5 on date 29-09-2021 and time 22:03:08 (Italy) in region 1 km SE Pioraco (MC)

A magnitude ML 0.5 earthquake occured in region: 1 km SE Pioraco (MC), on

  • 29-09-2021 20:03:08 (UTC)
  • 29-09-2021 22:03:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.176, 12.994 at 13 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
Pioraco MC 1 1134 1134
Sefro MC 5 422 1556
Fiuminata MC 5 1402 2958
Castelraimondo MC 7 4587 7545
Camerino MC 8 6974 14519
Matelica MC 9 9981 24500
Esanatoglia MC 9 2034 26534
Gagliole MC 9 620 27154
Muccia MC 11 915 28069
Serravalle di Chienti MC 12 1070 29139
Pievebovigliana MC 15 866 30005
Pieve Torina MC 15 1458 31463
Serrapetrona MC 16 966 32429
San Severino Marche MC 16 12726 45155
Cerreto d'Esi AN 16 3817 48972
Fiordimonte MC 17 202 49174
Nocera Umbra PG 18 5839 55013
Gualdo Tadino PG 18 15208 70221
Fabriano AN 19 31480 101701
Caldarola MC 19 1823 103524
Belforte del Chienti MC 20 1886 105410

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km NE of Foligno (57155 inhabitants)
50 Km E of Perugia (166134 inhabitants)
65 Km SW of Ancona (100861 inhabitants)
74 Km NE of Terni (111501 inhabitants)
74 Km S of Fano (60888 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
82 Km S of Pesaro (94582 inhabitants)
96 Km E of Arezzo (99543 inhabitants)
97 Km NW of L'Aquila (69753 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 0.5 2021-09-29
20:03:08
43.1758 12.9937 13 2021-09-29
21:14:04
Sala Sismica INGV-Roma 96044281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-29 20:03:08 ± 0.05
Latitude 43.1758 ± 0.0018
Longitude 12.9937 ± 0.0025
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96044281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 126
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
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) 91
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35343
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 96044281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-29 21:14:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2021-09-29T20:03:22.99 3.0 undecidable manual P -0.03 0
IV.NRCA.HHZ. 2021-09-29T20:03:21.92 0.6 undecidable manual S 166 0.3534 94 0.27 45
IV.ASSB.HHZ. 2021-09-29T20:03:19.40 0.6 undecidable manual S 242 0.2779 96 -0.04 48
IV.ATCC.EHZ. 2021-09-29T20:03:19.03 0.6 undecidable manual S 272 0.2581 97 0.19 46
IV.EL6.EHZ. 2021-09-29T20:03:16.32 0.6 undecidable manual S 27 0.1727 105 -0.02 49
IV.CESI.HHZ. 2021-09-29T20:03:16.53 0.6 undecidable manual S 201 0.1826 103 -0.11 48
IV.CSP1.EHZ. 2021-09-29T20:03:16.45 0.6 undecidable manual S 118 0.1754 104 0.03 49
IV.NRCA.HHZ. 2021-09-29T20:03:16.22 1.0 negative manual P 166 0.3534 94 0.04 24
IV.FDMO.HHZ. 2021-09-29T20:03:15.55 0.6 undecidable manual S 154 0.1547 108 -0.3 46
IV.ATCC.EHZ. 2021-09-29T20:03:14.57 0.6 positive manual P 272 0.2581 97 0.01 48
IV.SNTG.HHZ. 2021-09-29T20:03:14.07 0.6 undecidable manual S 334 0.0881 132 -0.05 50
IV.ASSB.HHZ. 2021-09-29T20:03:14.82 0.6 positive manual P 242 0.2779 96 -0.08 47
IV.EL6.EHZ. 2021-09-29T20:03:13.10 0.6 negative manual P 27 0.1727 105 -0.02 49
IV.MML1.EHZ. 2021-09-29T20:03:13.65 0.3 undecidable manual S 194 0.0639 143 0 75
IV.CESI.HHZ. 2021-09-29T20:03:13.25 0.3 positive manual P 201 0.1826 103 -0.04 73
IV.CSP1.EHZ. 2021-09-29T20:03:13.51 1.0 undecidable manual P 118 0.1754 104 0.34 23
IV.FDMO.HHZ. 2021-09-29T20:03:12.68 1.0 undecidable manual P 154 0.1547 108 -0.15 24
IV.SNTG.HHZ. 2021-09-29T20:03:11.82 0.1 undecidable manual P 334 0.0881 132 -0.02 100
IV.MML1.EHZ. 2021-09-29T20:03:11.64 0.6 positive manual P 194 0.0639 143 0.08 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:0.6 4.885E-5 0.14 AML other m 2021-09-29T20:03:13.89
IV.MML1.EHN. ML:0.6 4.47E-5 1.56 AML other m 2021-09-29T20:03:14.91
IV.SNTG.HHN. ML:0.3 2.215E-5 0.1 AML other m 2021-09-29T20:03:14.14
IV.SNTG.HHE. ML:0.4 2.55E-5 0.28 AML other m 2021-09-29T20:03:14.32
IV.FDMO.HHE. ML:0.6 2.94E-5 1.82 AML other m 2021-09-29T20:03:16.92
IV.FDMO.HHN. ML:0.5 2.43E-5 0.14 AML other m 2021-09-29T20:03:16.16
IV.CESI.HHE. ML:0.6 2.845E-5 0.1 AML other m 2021-09-29T20:03:16.84
IV.CESI.HHN. ML:0.5 1.865E-5 1.56 AML other m 2021-09-29T20:03:17.04
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