Earthquake with magnitude of ML 1.6 on date 02-03-2021 and time 08:31:57 (UTC) in region 2 km SE Fiordimonte (MC)

A magnitude ML 1.6 earthquake occured in region: 2 km SE Fiordimonte (MC), on

  • 02-03-2021 08:31:57 (UTC)
  • 02-03-2021 09:31:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.02, 13.1 at 9 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
Fiordimonte MC 2 202 202
Pieve Torina MC 5 1458 1660
Pievebovigliana MC 5 866 2526
Fiastra MC 5 559 3085
Acquacanina MC 6 121 3206
Muccia MC 8 915 4121
Monte Cavallo MC 8 145 4266
Ussita MC 9 444 4710
Visso MC 10 1107 5817
Bolognola MC 11 142 5959
Camerino MC 13 6974 12933
Serravalle di Chienti MC 13 1070 14003
Castelsantangelo sul Nera MC 15 281 14284
Preci PG 16 724 15008
Cessapalombo MC 17 512 15520
Sarnano MC 17 3264 18784
Caldarola MC 17 1823 20607
Sefro MC 18 422 21029
Camporotondo di Fiastrone MC 19 563 21592
Serrapetrona MC 19 966 22558
Belforte del Chienti MC 20 1886 24444
Pioraco MC 20 1134 25578

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Foligno (57155 inhabitants)
58 Km E of Perugia (166134 inhabitants)
63 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 inhabitants)
100 Km S of Pesaro (94582 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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 1.6 2021-03-02
08:31:57
43.02 13.1 9 2021-03-02
08:40:11
Sala Sismica INGV-Roma 87621531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-02 08:31:57 ± 0.08
Latitude 43.02 ± 0.00
Longitude 13.10 ± 0.00
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87621531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 404
Semi-minor axis of confidence ellipse (meter) 220
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 252
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 59
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36153
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 87621531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-02 08:40:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CING.HNZ. 2021-03-02T08:32:11.09 0.1 undecidable manual S 11 0.3606 50 0.17 93
IV.GAVE.EHZ. 2021-03-02T08:32:11.05 0.1 undecidable manual S 204 0.3615 50 0.13 94
IV.FOSV.EHZ. 2021-03-02T08:32:10.63 3.0 undecidable manual S -1.14 0
IV.EL6.EHE. 2021-03-02T08:32:09.36 0.3 undecidable manual S 1 0.3076 50 0.02 73
IV.MF5.EHZ. 2021-03-02T08:32:08.94 0.3 undecidable manual S 97 0.2671 107 0.91 56
IV.SAP2.EHN. 2021-03-02T08:32:07.65 0.3 undecidable manual S 71 0.2329 109 0.87 57
IV.NRCA.HHZ. 2021-03-02T08:32:05.38 0.1 undecidable manual S 176 0.188 113 0.21 95
IV.MMO1.EHZ. 2021-03-02T08:32:05.45 0.3 undecidable manual S 126 0.2077 111 -0.41 68
IV.CING.HNZ. 2021-03-02T08:32:05.31 0.1 undecidable manual P 11 0.3606 50 0.15 93
IV.GUMA.HHE. 2021-03-02T08:32:05.33 0.3 undecidable manual S 77 0.1781 114 0.5 67
IV.GAVE.EHZ. 2021-03-02T08:32:04.91 0.6 negative manual P 204 0.3615 50 -0.25 46
IV.CESI.HHZ. 2021-03-02T08:32:03.97 0.1 undecidable manual S 263 0.1421 120 0.4 92
IV.PF6.EHZ. 2021-03-02T08:32:03.15 0.1 undecidable manual S 31 0.1358 121 -0.23 96
IV.MF5.EHZ. 2021-03-02T08:32:03.54 0.3 positive manual P 97 0.2671 107 0.05 73
IV.MML1.EHE. 2021-03-02T08:32:03.31 0.1 undecidable manual S 315 0.1304 122 0.13 98
IV.MC2.EHZ. 2021-03-02T08:32:03.02 0.1 undecidable manual S 149 0.1286 122 -0.12 98
IV.EL6.EHE. 2021-03-02T08:32:03.85 0.1 undecidable manual P 1 0.3076 50 -0.4 89
IV.SAP2.EHN. 2021-03-02T08:32:02.62 0.3 undecidable manual P 71 0.2329 109 -0.15 72
IV.CSP1.EHZ. 2021-03-02T08:32:02.11 0.3 undecidable manual S 48 0.1052 127 -0.29 71
IV.GUMA.HHE. 2021-03-02T08:32:01.66 0.1 undecidable manual P 77 0.1781 114 0.02 99
IV.NRCA.HHZ. 2021-03-02T08:32:01.48 0.6 negative manual P 176 0.188 113 -0.36 46
IV.MMO1.EHZ. 2021-03-02T08:32:01.73 0.3 negative manual P 126 0.2077 111 -0.51 67
IV.MC2.EHZ. 2021-03-02T08:32:00.54 0.1 undecidable manual P 149 0.1286 122 -0.12 98
IV.CESI.HHZ. 2021-03-02T08:32:00.97 0.1 positive manual P 263 0.1421 120 0.05 99
IV.PF6.EHZ. 2021-03-02T08:32:00.50 0.1 undecidable manual P 31 0.1358 121 -0.31 94
IV.MML1.EHE. 2021-03-02T08:32:00.66 0.1 undecidable manual P 315 0.1304 122 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.9 0.001087 0.52 AML other m 2021-03-02T08:32:02.54
IV.CSP1.EHE. ML:1.9 0.00091 1.34 AML other m 2021-03-02T08:32:02.27
IV.CESI.HHE. ML:1.2 0.0001405 0.42 AML other m 2021-03-02T08:32:04.55
IV.CESI.HHN. ML:1.2 0.0001485 0.34 AML other m 2021-03-02T08:32:04.63
IV.NRCA.HHE. ML:1.6 0.0003145 0.18 AML other m 2021-03-02T08:32:05.45
IV.NRCA.HHN. ML:1.7 0.0004005 0.14 AML other m 2021-03-02T08:32:05.87
IV.GAVE.EHE. ML:1.6 0.000142 0.3 AML other m 2021-03-02T08:32:11.44
IV.GAVE.EHN. ML:1.6 0.0001355 0.64 AML other m 2021-03-02T08:32:11.30
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download