Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 14-04-2021 and time 07:18:54 (Italy) in region 3 km NW Fiastra (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km NW Fiastra (MC), on

  • 14-04-2021 05:18:54 (UTC)
  • 14-04-2021 07:18:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0540, 13.1340 at 7 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
Fiastra MC 3 559 559
Fiordimonte MC 4 202 761
Pievebovigliana MC 4 866 1627
Acquacanina MC 4 121 1748
Pieve Torina MC 7 1458 3206
Muccia MC 8 915 4121
Bolognola MC 10 142 4263
Camerino MC 11 6974 11237
Cessapalombo MC 12 512 11749
Ussita MC 12 444 12193
Caldarola MC 12 1823 14016
Monte Cavallo MC 13 145 14161
Sarnano MC 14 3264 17425
Camporotondo di Fiastrone MC 14 563 17988
Visso MC 14 1107 19095
Serrapetrona MC 15 966 20061
Serravalle di Chienti MC 15 1070 21131
Belforte del Chienti MC 15 1886 23017
San Ginesio MC 16 3498 26515
Gualdo MC 17 815 27330
Castelsantangelo sul Nera MC 18 281 27611
Sefro MC 18 422 28033
Pioraco MC 19 1134 29167
Castelraimondo MC 19 4587 33754
Amandola FM 20 3629 37383
San Severino Marche MC 20 12726 50109

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km E of Foligno (57155 inhabitants)
61 Km E of Perugia (166134 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
68 Km NE of Terni (111501 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
81 Km N of L'Aquila (69753 inhabitants)
88 Km S of Fano (60888 inhabitants)
97 Km S of Pesaro (94582 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.1 2021-04-14
05:18:54		 43.0537 13.1342 7 2021-04-14
05:23:50		 Sala Sismica INGV-Roma 89084711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-14 05:18:54 ± 0.09
Latitude 43.0537 ± 0.0027
Longitude 13.1342 ± 0.0025
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89084711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 316
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 153
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 109
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.24641
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 89084711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-14 05:23:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-04-14T05:19:04.61 0.3 undecidable manual S 105 27.3504 105 0.23 69
IV.CESI.HHZ. 2021-04-14T05:19:01.84 0.3 undecidable manual S 254 19.3695 111 0.1 72
IV.MML1.HNE. 2021-04-14T05:19:00.54 0.3 undecidable manual S 297 14.7741 117 0.28 70
IV.MF5.EHZ. 2021-04-14T05:19:00.12 0.3 negative manual P 105 27.3504 105 -0.1 71
IV.FEMA.HNZ. 2021-04-14T05:18:59.73 0.3 undecidable manual S 214 12.2766 121 0.23 71
IT.MTCL.HGZ. 2021-04-14T05:18:59.59 0.3 undecidable manual S 239 12.7761 120 -0.07 73
IV.CESI.HHZ. 2021-04-14T05:18:58.58 0.1 positive manual P 254 19.3695 111 -0.11 96
IV.PF6.EHE. 2021-04-14T05:18:58.99 0.1 undecidable manual S 28 10.5783 125 -0.02 99
IV.CSP1.EHZ. 2021-04-14T05:18:58.14 0.3 undecidable manual S 53 7.0929 136 0.04 75
IV.PF6.EHE. 2021-04-14T05:18:57.02 0.1 undecidable manual P 28 10.5783 125 -0.1 98
IV.FEMA.HNZ. 2021-04-14T05:18:57.37 0.1 undecidable manual P 214 12.2766 121 -0.04 99
IT.MTCL.HGZ. 2021-04-14T05:18:57.35 0.3 undecidable manual P 239 12.7761 120 -0.15 72
IV.FDMO.HHE. 2021-04-14T05:18:57.38 0.1 undecidable manual S 243 4.2957 150 -0.12 98
IV.MML1.HNE. 2021-04-14T05:18:57.89 0.3 undecidable manual P 297 14.7741 117 0.05 73
IV.CSP1.EHZ. 2021-04-14T05:18:56.60 0.1 positive manual P 53 7.0929 136 0 100
IV.FDMO.HHE. 2021-04-14T05:18:56.20 0.1 undecidable manual P 243 4.2957 150 -0.05 100
IV.ARVD.HHZ. 2021-04-14T05:18:48.65 3.0 positive manual P 0 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.5 0.000593 0.6 AML other m 2021-04-14T05:18:58.64
IV.CSP1.EHE. ML:1.4 0.0005110000000000001 0.7 AML other m 2021-04-14T05:18:58.35
IV.CESI.HHN. ML:0.8 0.00004765 1.5 AML other m 2021-04-14T05:19:03.22
IV.CESI.HHE. ML:0.8 0.00004895 0.42 AML other m 2021-04-14T05:19:04.87
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