Earthquake with magnitude of ML 0.2 on date 21-11-2021 and time 09:18:27 (Italy) in region 3 km W Fiastra (MC)

A magnitude ML 0.2 earthquake occured in region: 3 km W Fiastra (MC), on

  • 21-11-2021 08:18:27 (UTC)
  • 21-11-2021 09:18:27 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.036, 13.126 at 6 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
Fiastra MC 3 559 559
Fiordimonte MC 3 202 761
Acquacanina MC 4 121 882
Pievebovigliana MC 5 866 1748
Pieve Torina MC 6 1458 3206
Muccia MC 8 915 4121
Bolognola MC 9 142 4263
Ussita MC 10 444 4707
Monte Cavallo MC 11 145 4852
Visso MC 12 1107 5959
Camerino MC 12 6974 12933
Cessapalombo MC 14 512 13445
Caldarola MC 14 1823 15268
Sarnano MC 14 3264 18532
Serravalle di Chienti MC 15 1070 19602
Camporotondo di Fiastrone MC 16 563 20165
Castelsantangelo sul Nera MC 16 281 20446
Serrapetrona MC 17 966 21412
Belforte del Chienti MC 17 1886 23298
San Ginesio MC 18 3498 26796
Gualdo MC 18 815 27611
Preci PG 19 724 28335
Sefro MC 19 422 28757
Amandola FM 20 3629 32386
Pioraco MC 20 1134 33520

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
66 Km NE of Terni (111501 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
79 Km N of L'Aquila (69753 inhabitants)
90 Km S of Fano (60888 inhabitants)
99 Km S of Pesaro (94582 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 0.2 2021-11-21
08:18:27
43.0357 13.1262 6 2021-11-21
08:28:43
Sala Sismica INGV-Roma 97649751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-21 08:18:27 ± 0.21
Latitude 43.0357 ± 0.0063
Longitude 13.1262 ± 0.0086
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97649751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 860
Semi-minor axis of confidence ellipse (meter) 186
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 44
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.20055
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.2

Field Value
Value 0.2
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 97649751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-21 08:28:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IFIL.HHZ. 2021-11-21T08:20:13.26 3.0 undecidable manual Sn -3.76 0
HL.VLS.HHZ. 2021-11-21T08:20:06.62 3.0 positive manual Pn 2.92 0
IV.SGAL.EHZ. 2021-11-21T08:20:01.10 3.0 undecidable manual Sg 14.93 0
IV.CMPR.HHZ. 2021-11-21T08:19:41.37 3.0 undecidable manual Sg -0.83 0
IV.VTIR.HHZ. 2021-11-21T08:19:33.29 3.0 undecidable manual Sg 8.48 0
IV.MAGO.CHZ. 2021-11-21T08:19:14.02 3.0 undecidable manual Sn 1.05 0
IV.IMOL.HNZ. 2021-11-21T08:19:07.47 3.0 undecidable manual Sn -1.68 0
OT.OT17.EHZ. 2021-11-21T08:18:55.03 3.0 negative manual Pg 3.64 0
IV.GIUL.HHZ. 2021-11-21T08:18:53.70 3.0 undecidable manual Sn -9.75 0
IV.PP3.EHZ. 2021-11-21T08:18:48.95 3.0 undecidable manual Sg 3.89 0
IV.MIDA.HHZ. 2021-11-21T08:18:46.45 3.0 negative manual Pg 1.54 0
IV.BRIS.HHZ. 2021-11-21T08:18:46.43 3.0 positive manual Pn 1.3 0
IV.FIR.HHZ. 2021-11-21T08:18:45.13 3.0 negative manual Pn -0.16 0
IV.TERO.HHZ. 2021-11-21T08:18:43.05 3.0 undecidable manual P 0
IV.FIU1.HNZ. 2021-11-21T08:18:37.90 3.0 undecidable manual S 0
IV.MMO1.EHZ. 2021-11-21T08:18:35.23 0.6 undecidable manual S 133 0.2005 104 -0.47 46
IV.FIU1.HNZ. 2021-11-21T08:18:35.48 3.0 undecidable manual P 0
IV.MML1.HNZ. 2021-11-21T08:18:33.11 0.6 undecidable manual S 305 0.1367 110 -0.26 49
IV.MC2.EHZ. 2021-11-21T08:18:33.57 0.6 undecidable manual S 160 0.1322 111 0.37 48
IV.MMO1.EHZ. 2021-11-21T08:18:32.55 0.1 undecidable manual P 133 0.2005 104 0.2 98
IV.MML1.HNZ. 2021-11-21T08:18:31.17 0.1 undecidable manual P 305 0.1367 110 0.17 100
IV.CSP1.EHZ. 2021-11-21T08:18:31.54 0.6 undecidable manual S 46 0.08 122 0.14 51
IV.MC2.EHZ. 2021-11-21T08:18:30.57 0.6 negative manual P 160 0.1322 111 -0.33 48
IV.FDMO.HHZ. 2021-11-21T08:18:30.01 0.6 undecidable manual S 272 0.0288 150 0.05 52
IV.CSP1.EHZ. 2021-11-21T08:18:29.72 0.6 undecidable manual P 46 0.08 122 -0.14 51
IV.FDMO.HHZ. 2021-11-21T08:18:28.75 1.0 undecidable manual P 272 0.0288 150 -0.28 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
OT.OT17.EHE. ML:3.4 0.000528 0.06 AML other m 2021-11-21T08:19:05.40
OT.OT17.EHN. ML:3.5 0.000666 0.24 AML other m 2021-11-21T08:19:10.60
IV.FDMO.HHE. ML:0 2.130657E-5 0.16 AML other m 2021-11-21T08:18:30.00
IV.FDMO.HHN. ML:0 2.3111225E-5 0.0768 AML other m 2021-11-21T08:18:30.10
IV.CSP1.EHE. ML:0.4 4.7919717E-5 0.2368 AML other m 2021-11-21T08:18:31.55
IV.CSP1.EHN. ML:0.4 4.7559385E-5 0.16 AML other m 2021-11-21T08:18:31.61
IV.MC2.EHE. ML:0.1 1.392055E-5 0.16 AML other m 2021-11-21T08:18:34.33
IV.MC2.EHN. ML:0 1.2435965E-5 0.3392 AML other m 2021-11-21T08:18:41.12
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