Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 28-11-2020 and time 06:19:37 (Italy) in region 5 km SE Fiordimonte (MC)

A magnitude ML 0.4 earthquake occured in region: 5 km SE Fiordimonte (MC), on

  • 28-11-2020 05:19:37 (UTC)
  • 28-11-2020 06:19:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43, 13.11 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Fiordimonte MC 5 202 202
Fiastra MC 6 559 761
Acquacanina MC 6 121 882
Ussita MC 6 444 1326
Pieve Torina MC 7 1458 2784
Pievebovigliana MC 7 866 3650
Visso MC 8 1107 4757
Monte Cavallo MC 9 145 4902
Bolognola MC 10 142 5044
Muccia MC 11 915 5959
Castelsantangelo sul Nera MC 12 281 6240
Preci PG 15 724 6964
Serravalle di Chienti MC 15 1070 8034
Camerino MC 16 6974 15008
Sarnano MC 16 3264 18272
Cessapalombo MC 17 512 18784
Caldarola MC 18 1823 20607
Sellano PG 19 1079 21686
Camporotondo di Fiastrone MC 20 563 22249
Montefortino FM 20 1178 23427

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
76 Km NW of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
94 Km S of Fano (60888 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 0.4 2020-11-28
05:19:37		 43 13.11 11 2020-11-28
06:06:45		 Sala Sismica INGV-Roma 85062011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-28 05:19:37 ± 0.07
Latitude 43.00 ± 0.00
Longitude 13.11 ± 0.00
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85062011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 382
Semi-minor axis of confidence ellipse (meter) 360
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.18616
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 85062011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-28 06:06:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.CANO.HHZ. 2020-11-28T05:21:15.87 3.0 undecidable manual Sn 4.36 0
CR.STON.BHZ. 2020-11-28T05:21:07.84 3.0 undecidable manual Sn 3.97 0
IV.ECTS.HHZ. 2020-11-28T05:20:54.11 3.0 undecidable manual Pn 1.6 0
OT.OT05.EHZ. 2020-11-28T05:20:47.49 3.0 undecidable manual Sg 9.13 0
IV.PIGN.HHZ. 2020-11-28T05:20:31.21 3.0 undecidable manual Sn 0.07 0
IV.SENA.HHZ. 2020-11-28T05:20:28.12 3.0 undecidable manual Pn -1.99 0
IV.FIR.HHZ. 2020-11-28T05:19:58.71 3.0 undecidable manual P -0.11 0
IV.GUMA.HHZ. 2020-11-28T05:19:45.23 0.3 undecidable manual S 69 0.1754 118 0.42 69
IV.NRCA.HNE. 2020-11-28T05:19:44.08 0.3 undecidable manual S 179 0.1655 120 -0.39 69
IV.MMO1.EHZ. 2020-11-28T05:19:44.95 0.3 undecidable manual S 122 0.1862 117 -0.23 71
IV.PF6.EHZ. 2020-11-28T05:19:43.75 0.3 undecidable manual S 24 0.1511 122 -0.26 70
IV.MML1.EHZ. 2020-11-28T05:19:43.92 0.3 undecidable manual S 318 0.1529 122 -0.15 72
IV.CESI.HHZ. 2020-11-28T05:19:43.95 0.3 undecidable manual S 272 0.1511 122 -0.05 75
IV.MC2.EHE. 2020-11-28T05:19:42.78 0.3 undecidable manual S 147 0.1043 132 0.22 73
IV.CSP1.EHZ. 2020-11-28T05:19:42.91 0.3 undecidable manual S 36 0.1151 129 0.04 74
IV.CESI.HHZ. 2020-11-28T05:19:41.06 0.1 undecidable manual P 272 0.1511 122 -0.04 99
IV.FDMO.HHZ. 2020-11-28T05:19:41.05 0.3 undecidable manual S 335 0.0414 156 -0.05 74
IV.GUMA.HHZ. 2020-11-28T05:19:41.89 0.1 undecidable manual P 69 0.1754 118 0.32 93
IV.MMO1.EHZ. 2020-11-28T05:19:41.68 0.1 undecidable manual P 122 0.1862 117 -0.1 97
IT.MTCL.HGE. 2020-11-28T05:19:41.92 0.3 undecidable manual S 266 0.0818 139 -0.03 75
IV.MML1.EHZ. 2020-11-28T05:19:41.08 0.1 undecidable manual P 318 0.1529 122 -0.06 99
IV.FEMA.HNE. 2020-11-28T05:19:41.67 0.3 undecidable manual S 231 0.0585 148 0.26 72
IV.NRCA.HNE. 2020-11-28T05:19:41.67 0.1 undecidable manual P 179 0.1655 120 0.3 93
IV.PF6.EHZ. 2020-11-28T05:19:40.99 0.1 undecidable manual P 24 0.1511 122 -0.11 97
IV.CSP1.EHZ. 2020-11-28T05:19:40.53 0.1 undecidable manual P 36 0.1151 129 0.08 99
IV.FEMA.HNE. 2020-11-28T05:19:39.83 0.1 undecidable manual P 231 0.0585 148 0.23 97
IV.MC2.EHE. 2020-11-28T05:19:39.91 0.1 undecidable manual P 147 0.1043 132 -0.35 93
IV.FDMO.HHZ. 2020-11-28T05:19:39.53 0.1 undecidable manual P 335 0.0414 156 0.1 100
IT.MTCL.HGE. 2020-11-28T05:19:39.94 0.1 undecidable manual P 266 0.0818 139 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.9 0.0001355 0.22 AML other m 2020-11-28T05:19:41.25
IV.FDMO.HHE. ML:0.6 7.05E-5 0.42 AML other m 2020-11-28T05:19:41.26
IV.CSP1.EHE. ML:0.6 3.9982599E-5 0.1024 AML other m 2020-11-28T05:19:43.16
IV.CSP1.EHN. ML:0.4 2.705085E-5 0.6976 AML other m 2020-11-28T05:19:49.35
IV.CESI.HHE. ML:-0.2 6.756345E-6 0.16 AML other m 2020-11-28T05:19:45.90
IV.CESI.HHN. ML:0.1 8.43313125E-6 0.1216 AML other m 2020-11-28T05:19:46.01
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