Earthquake with magnitude of ML 0.7 on date 22-02-2020 and time 21:20:37 (Italy) in region 2 km S Fiordimonte (MC)

A magnitude ML 0.7 earthquake occured in region: 2 km S Fiordimonte (MC), on

  • 22-02-2020 20:20:37 (UTC)
  • 22-02-2020 21:20:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.02, 13.08 at 11 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 4 1458 1660
Pievebovigliana MC 5 866 2526
Fiastra MC 6 559 3085
Monte Cavallo MC 7 145 3230
Acquacanina MC 8 121 3351
Muccia MC 8 915 4266
Ussita MC 9 444 4710
Visso MC 10 1107 5817
Bolognola MC 12 142 5959
Serravalle di Chienti MC 12 1070 7029
Camerino MC 13 6974 14003
Castelsantangelo sul Nera MC 15 281 14284
Preci PG 16 724 15008
Cessapalombo MC 18 512 15520
Caldarola MC 18 1823 17343
Sarnano MC 18 3264 20607
Sefro MC 18 422 21029
Sellano PG 19 1079 22108
Camporotondo di Fiastrone MC 20 563 22671
Pioraco MC 20 1134 23805
Serrapetrona MC 20 966 24771

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
57 Km E of Perugia (166134 inhabitants)
62 Km NE of Terni (111501 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
76 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
Rev 100 ML 0.7 2020-02-22
20:20:37
43.02 13.08 11 2020-02-22
20:33:46
Sala Sismica INGV-Roma 76732781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-02-22 20:20:37 ± 0.06
Latitude 43.02 ± 0.00
Longitude 13.08 ± 0.00
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 76732781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 425
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 73
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.01979
Epicentral distance of station farthest from the epicenter (degree) 0.21314
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 76732781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-02-22 20:33:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2020-02-22T20:20:45.89 0.1 undecidable manual S 123 0.2131 91 -0.1 95
IV.NRCA.HNZ. 2020-02-22T20:20:44.93 0.3 undecidable manual S 173 0.1844 92 -0.21 70
IV.MC2.EHZ. 2020-02-22T20:20:43.62 0.1 undecidable manual S 144 0.1304 99 0.07 98
IV.MML1.HNZ. 2020-02-22T20:20:43.08 0.6 undecidable manual S 320 0.1268 101 -0.36 47
IV.CSP1.EHZ. 2020-02-22T20:20:43.30 0.1 undecidable manual S 50 0.116 107 0.16 95
IV.CESI.HHZ. 2020-02-22T20:20:43.69 0.1 undecidable manual S 265 0.1313 99 0.12 95
IV.MMO1.EHZ. 2020-02-22T20:20:42.14 0.1 undecidable manual P 123 0.2131 91 -0.14 94
IV.FEMA.HNZ. 2020-02-22T20:20:42.04 0.6 undecidable manual S 204 0.0603 139 0.29 47
IV.NRCA.HNZ. 2020-02-22T20:20:41.77 0.1 undecidable manual P 173 0.1844 92 -0.02 98
IT.MTCL.HGZ. 2020-02-22T20:20:41.40 0.6 undecidable manual S 250 0.0657 136 -0.47 46
IV.FDMO.HHZ. 2020-02-22T20:20:41.10 0.1 undecidable manual S 8 0.0198 166 -0.1 99
IV.CSP1.EHZ. 2020-02-22T20:20:40.69 0.1 undecidable manual P 50 0.116 107 0.05 97
IV.CESI.HHZ. 2020-02-22T20:20:40.90 0.1 undecidable manual P 265 0.1313 99 0.01 97
IV.FEMA.HNZ. 2020-02-22T20:20:40.08 0.1 undecidable manual P 204 0.0603 139 0.24 95
IV.MC2.EHZ. 2020-02-22T20:20:40.92 0.1 undecidable manual P 144 0.1304 99 0.05 98
IV.MML1.HNZ. 2020-02-22T20:20:40.88 0.1 undecidable manual P 320 0.1268 101 0.07 96
IT.MTCL.HGZ. 2020-02-22T20:20:39.92 0.1 undecidable manual P 250 0.0657 136 0.02 99
IV.FDMO.HHZ. 2020-02-22T20:20:39.46 0.1 undecidable manual P 8 0.0198 166 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.5 5.39E-5 0.08 AML other m 2020-02-22T20:20:41.43
IV.FDMO.HHE. ML:0.6 6.92E-5 0.56 AML other m 2020-02-22T20:20:41.23
IV.CSP1.EHE. ML:1 9.7940455E-5 0.1408 AML other m 2020-02-22T20:20:43.36
IV.CSP1.EHN. ML:0.7 5.5923257E-5 0.1408 AML other m 2020-02-22T20:20:44.32
IV.CESI.HHE. ML:0.5 3.0361635E-5 0.064 AML other m 2020-02-22T20:20:44.58
IV.CESI.HHN. ML:0.7 4.9987685E-5 0.1024 AML other m 2020-02-22T20:20:44.26
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