Earthquake with magnitude of ML 0.8 on date 21-05-2020 and time 18:27:48 (UTC) in region 3 km SE Fiordimonte (MC)

A magnitude ML 0.8 earthquake occured in region: 3 km SE Fiordimonte (MC), on

  • 21-05-2020 18:27:48 (UTC)
  • 21-05-2020 20:27:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.02, 13.11 at 5 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 3 202 202
Fiastra MC 4 559 761
Acquacanina MC 5 121 882
Pievebovigliana MC 6 866 1748
Pieve Torina MC 6 1458 3206
Ussita MC 8 444 3650
Muccia MC 9 915 4565
Monte Cavallo MC 9 145 4710
Bolognola MC 10 142 4852
Visso MC 10 1107 5959
Camerino MC 14 6974 12933
Castelsantangelo sul Nera MC 14 281 13214
Serravalle di Chienti MC 14 1070 14284
Sarnano MC 16 3264 17548
Cessapalombo MC 16 512 18060
Preci PG 16 724 18784
Caldarola MC 17 1823 20607
Camporotondo di Fiastrone MC 18 563 21170
Serrapetrona MC 19 966 22136
Gualdo MC 19 815 22951
Belforte del Chienti MC 19 1886 24837
Sefro MC 20 422 25259
San Ginesio MC 20 3498 28757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
63 Km NW of Teramo (54892 inhabitants)
63 Km NE of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
92 Km S of Fano (60888 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 0.8 2020-05-21
18:27:48
43.02 13.11 5 2020-05-21
18:39:12
Sala Sismica INGV-Roma 79418291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-21 18:27:48 ± 0.12
Latitude 43.02 ± 0.00
Longitude 13.11 ± 0.00
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79418291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 418
Semi-minor axis of confidence ellipse (meter) 151
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 177
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.31206
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 79418291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-21 18:39:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-05-21T18:27:56.33 0.3 undecidable manual S 127 0.1961 102 -0.3 69
IV.NRCA.HHZ. 2020-05-21T18:27:56.31 0.3 undecidable manual S 180 0.1835 103 0.16 72
IV.CESI.HHZ. 2020-05-21T18:27:55.23 0.3 undecidable manual S 266 0.152 105 0.23 71
IV.MF5.EHZ. 2020-05-21T18:27:55.14 0.1 undecidable manual P 96 0.2554 99 0.47 88
IV.EL6.EHE. 2020-05-21T18:27:55.34 0.6 undecidable manual P 359 0.3121 98 -0.57 42
IV.SNTG.HHE. 2020-05-21T18:27:54.42 0.3 undecidable manual P 332 0.2689 99 -0.54 64
IV.PF6.EHZ. 2020-05-21T18:27:54.55 0.3 undecidable manual S 26 0.1349 107 0.2 72
IV.MML1.HNZ. 2020-05-21T18:27:54.89 0.3 undecidable manual S 313 0.1412 106 0.32 70
IV.CSP1.EHZ. 2020-05-21T18:27:53.41 0.3 undecidable manual S 42 0.1007 112 0.3 71
IV.MMO1.EHZ. 2020-05-21T18:27:53.47 0.3 undecidable manual P 127 0.1961 102 0.1 72
IV.NRCA.HHZ. 2020-05-21T18:27:52.76 0.1 undecidable manual P 180 0.1835 103 -0.34 92
IT.MTCL.HGZ. 2020-05-21T18:27:52.84 0.3 undecidable manual S 254 0.0854 116 0.26 71
IV.MML1.HNZ. 2020-05-21T18:27:52.12 0.1 undecidable manual P 313 0.1412 106 -0.06 98
IV.PF6.EHZ. 2020-05-21T18:27:52.03 0.1 undecidable manual P 26 0.1349 107 -0.02 99
IV.CESI.HHZ. 2020-05-21T18:27:52.37 0.1 undecidable manual P 266 0.152 105 -0.06 98
IT.MTCL.HGZ. 2020-05-21T18:27:51.17 0.1 undecidable manual P 254 0.0854 116 0.14 98
IV.CSP1.EHZ. 2020-05-21T18:27:51.33 0.1 undecidable manual P 42 0.1007 112 -0.01 100
IV.FDMO.HHZ. 2020-05-21T18:27:50.56 0.3 undecidable manual S 317 0.027 147 -0.25 72
IV.FDMO.HHZ. 2020-05-21T18:27:49.78 0.1 undecidable manual P 317 0.027 147 -0.23 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.8 0.00010635 0.78 AML other m 2020-05-21T18:27:53.15
IV.CSP1.EHN. ML:0.9 0.000112 0.5 AML other m 2020-05-21T18:27:53.64
IV.CESI.HHE. ML:0.8 5.425E-5 0.46 AML other m 2020-05-21T18:27:56.30
IV.NRCA.HHE. ML:0.8 5.62E-5 0.48 AML other m 2020-05-21T18:27:56.91
IV.NRCA.HHN. ML:0.7 3.9E-5 0.72 AML other m 2020-05-21T18:27:57.38
IV.CESI.HHN. ML:0.6 4.05E-5 0.46 AML other m 2020-05-21T18:27:57.47
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