Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.7 on date 30-03-2021 and time 03:31:17 (UTC) in region 1 km NE Fiordimonte (MC)

A magnitude ML 0.7 earthquake occured in region: 1 km NE Fiordimonte (MC), on

  • 30-03-2021 03:31:17 (UTC)
  • 30-03-2021 05:31:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0430, 13.1000 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.

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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 1 202 202
Pievebovigliana MC 3 866 1068
Pieve Torina MC 4 1458 2526
Fiastra MC 5 559 3085
Muccia MC 6 915 4000
Acquacanina MC 6 121 4121
Monte Cavallo MC 10 145 4266
Camerino MC 11 6974 11240
Ussita MC 11 444 11684
Bolognola MC 12 142 11826
Serravalle di Chienti MC 12 1070 12896
Visso MC 12 1107 14003
Caldarola MC 15 1823 15826
Cessapalombo MC 15 512 16338
Sarnano MC 16 3264 19602
Serrapetrona MC 17 966 20568
Camporotondo di Fiastrone MC 17 563 21131
Sefro MC 17 422 21553
Castelsantangelo sul Nera MC 17 281 21834
Belforte del Chienti MC 18 1886 23720
Pioraco MC 18 1134 24854
Preci PG 19 724 25578
Castelraimondo MC 19 4587 30165
San Ginesio MC 19 3498 33663
Gualdo MC 20 815 34478

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
58 Km E of Perugia (166134 inhabitants)
65 Km NE of Terni (111501 inhabitants)
65 Km NW of Teramo (54892 inhabitants)
72 Km SW of Ancona (100861 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
98 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 0.7 2021-03-30
03:31:17		 43.0433 13.1003 6 2021-03-30
03:38:13		 Sala Sismica INGV-Roma 88604221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-30 03:31:17 ± 0.11
Latitude 43.0433 ± 0.0027
Longitude 13.1003 ± 0.0037
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 88604221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 310
Semi-minor axis of confidence ellipse (meter) 56
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 24
Circular confidence region, given by single value of horizontal uncertainty (meter) 310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 57
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28598
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.4
Num. used stations 9
Type of magnitude ML
Reference to an origin 88604221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-30 03:38:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2021-03-30T03:31:33.21 3.0 undecidable manual P 0.35 0
IV.EL6.EHZ. 2021-03-30T03:31:28.71 0.6 undecidable manual S 0 31.746 101 -0.17 47
IV.MMO1.EHZ. 2021-03-30T03:31:26.03 0.6 undecidable manual S 131 24.3534 104 -0.36 46
IV.NRCA.HHZ. 2021-03-30T03:31:26.07 0.6 undecidable manual S 177 23.2545 105 0.03 49
IV.GUMA.HNZ. 2021-03-30T03:31:24.80 0.3 undecidable manual S 84 19.1697 108 0.14 73
IV.MC2.EHZ. 2021-03-30T03:31:24.05 0.6 undecidable manual S 154 16.2726 111 0.32 47
IV.CESI.HHZ. 2021-03-30T03:31:24.05 0.6 undecidable manual S 255 16.4724 111 0.28 47
IV.EL6.EHZ. 2021-03-30T03:31:23.80 0.6 positive manual P 0 31.746 101 -0.34 46
IV.CSP1.EHZ. 2021-03-30T03:31:22.17 0.6 undecidable manual S 58 9.9789 122 0.4 47
IV.NRCA.HHZ. 2021-03-30T03:31:22.17 1.0 negative manual P 177 23.2545 105 -0.33 23
IV.PF6.EHZ. 2021-03-30T03:31:22.64 0.6 undecidable manual S 36 12.9759 116 -0.02 50
IV.MMO1.EHZ. 2021-03-30T03:31:22.45 1.0 positive manual P 131 24.3534 104 -0.25 24
IV.MML1.HNZ. 2021-03-30T03:31:22.79 0.6 undecidable manual S 307 12.9759 116 0.12 49
IV.CESI.HHZ. 2021-03-30T03:31:21.29 0.6 negative manual P 255 16.4724 111 0.1 49
IV.GUMA.HNZ. 2021-03-30T03:31:21.67 0.1 undecidable manual P 84 19.1697 108 -0.03 99
IV.MC2.EHZ. 2021-03-30T03:31:21.18 1.0 undecidable manual P 154 16.2726 111 0.02 25
IV.CSP1.EHZ. 2021-03-30T03:31:20.25 0.3 positive manual P 58 9.9789 122 0.22 73
IV.PF6.EHZ. 2021-03-30T03:31:20.49 0.1 undecidable manual P 36 12.9759 116 -0.05 100
IV.MML1.HNZ. 2021-03-30T03:31:20.61 0.1 undecidable manual P 307 12.9759 116 0.06 100
IV.FDMO.HHZ. 2021-03-30T03:31:19.61 0.6 undecidable manual S 234 1.2987 168 -0.27 49
IV.FDMO.HHZ. 2021-03-30T03:31:18.78 0.1 undecidable manual P 234 1.2987 168 -0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.6 0.000028200000000000004 0.14 AML other m 2021-03-30T03:31:26.83
IV.NRCA.HHN. ML:0.5 0.000022392540000000002 0.0992 AML other m 2021-03-30T03:31:27.32
IV.CSP1.EHE. ML:0.8 0.00008940339499999999 0.3408 AML other m 2021-03-30T03:31:23.04
IV.CSP1.EHN. ML:0.8 0.000092883715 0.1392 AML other m 2021-03-30T03:31:22.24
IV.CESI.HNN. ML:1.3 0.00018755060000000002 1 AML other m 2021-03-30T03:31:24.02
IV.CESI.HHE. ML:0.0 0.000010207877500000001 0.0608 AML other m 2021-03-30T03:31:24.32
IV.CESI.HHN. ML:0.2 0.000013180775499999999 0.08 AML other m 2021-03-30T03:31:24.28
IV.NRCA.HNE. ML:1.3 0.0001416512 0.6512 AML other m 2021-03-30T03:31:30.64
IV.NRCA.HNN. ML:1.5 0.0002061424 0.7808 AML other m 2021-03-30T03:31:28.14
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