Earthquake with magnitude of ML 0.6 on date 22-02-2021 and time 18:27:51 (Italy) in region 4 km E Pioraco (MC)

A magnitude ML 0.6 earthquake occured in region: 4 km E Pioraco (MC), on

  • 22-02-2021 17:27:51 (UTC)
  • 22-02-2021 18:27:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.18, 13.04 at 13 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
Pioraco MC 4 1134 1134
Castelraimondo MC 4 4587 5721
Camerino MC 5 6974 12695
Gagliole MC 7 620 13315
Sefro MC 8 422 13737
Fiuminata MC 8 1402 15139
Matelica MC 9 9981 25120
Muccia MC 11 915 26035
Esanatoglia MC 11 2034 28069
Serrapetrona MC 13 966 29035
San Severino Marche MC 13 12726 41761
Pievebovigliana MC 13 866 42627
Serravalle di Chienti MC 14 1070 43697
Pieve Torina MC 15 1458 45155
Fiordimonte MC 16 202 45357
Caldarola MC 16 1823 47180
Cerreto d'Esi AN 16 3817 50997
Belforte del Chienti MC 17 1886 52883
Fiastra MC 19 559 53442
Camporotondo di Fiastrone MC 19 563 54005
Cessapalombo MC 20 512 54517
Acquacanina MC 20 121 54638

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Foligno (57155 inhabitants)
53 Km E of Perugia (166134 inhabitants)
63 Km SW of Ancona (100861 inhabitants)
74 Km S of Fano (60888 inhabitants)
76 Km NE of Terni (111501 inhabitants)
79 Km NW of Teramo (54892 inhabitants)
82 Km S of Pesaro (94582 inhabitants)
97 Km NW of L'Aquila (69753 inhabitants)
99 Km E of Arezzo (99543 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 0.6 2021-02-22
17:27:51
43.18 13.04 13 2021-02-22
17:40:32
Sala Sismica INGV-Roma 87383441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-22 17:27:51 ± 0.06
Latitude 43.18 ± 0.00
Longitude 13.04 ± 0.00
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87383441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 276
Semi-minor axis of confidence ellipse (meter) 99
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 280
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 100
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) 0.12
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.19785
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:0.6

Field Value
Value 0.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 87383441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-22 17:40:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TRIF.CHZ. 2021-02-22T17:28:40.62 3.0 undecidable manual Sn 0 0
IV.CESI.HHZ. 2021-02-22T17:27:59.59 0.3 undecidable manual S 209 0.1979 101 0.06 73
IV.CSP1.EHZ. 2021-02-22T17:27:58.34 0.3 undecidable manual S 125 0.1511 110 0.14 72
IV.EL6.EHZ. 2021-02-22T17:27:58.38 0.3 undecidable manual S 18 0.1592 108 -0.04 74
IV.FDMO.HHZ. 2021-02-22T17:27:57.96 0.1 undecidable manual S 165 0.1466 111 -0.12 97
IV.PF6.EHZ. 2021-02-22T17:27:57.37 0.3 undecidable manual S 109 0.1232 118 -0.07 74
IV.MML1.EHN. 2021-02-22T17:27:56.49 0.3 undecidable manual S 216 0.0791 136 0.08 74
IV.FIU1.HNE. 2021-02-22T17:27:56.13 0.1 undecidable manual S 278 0.0764 137 -0.21 97
IV.MDAR.HNE. 2021-02-22T17:27:56.33 0.1 undecidable manual S 79 0.08 136 -0.09 100
IV.EL6.EHZ. 2021-02-22T17:27:55.32 0.1 undecidable manual P 18 0.1592 108 -0.04 98
IV.CESI.HHZ. 2021-02-22T17:27:55.98 0.1 positive manual P 209 0.1979 101 -0.02 97
IV.FDMO.HHZ. 2021-02-22T17:27:55.12 0.1 undecidable manual P 165 0.1466 111 -0.04 98
IV.CSP1.EHZ. 2021-02-22T17:27:55.29 0.1 undecidable manual P 125 0.1511 110 0.06 98
IV.FIU1.HNE. 2021-02-22T17:27:54.50 0.3 undecidable manual P 278 0.0764 137 0.34 70
IV.MDAR.HNE. 2021-02-22T17:27:54.25 0.1 undecidable manual P 79 0.08 136 0.05 99
IV.MML1.EHN. 2021-02-22T17:27:54.24 0.1 undecidable manual P 216 0.0791 136 0.04 100
IV.PF6.EHZ. 2021-02-22T17:27:54.72 0.1 undecidable manual P 109 0.1232 118 -0.07 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.5 2.415E-5 0.46 AML other m 2021-02-22T17:27:58.07
IV.FDMO.HHN. ML:0.6 3.1E-5 0.42 AML other m 2021-02-22T17:27:58.29
IV.CSP1.EHE. ML:0.8 4.787348E-5 0.256 AML other m 2021-02-22T17:27:58.47
IV.CSP1.EHN. ML:1 7.655564E-5 0.2816 AML other m 2021-02-22T17:27:59.70
IV.EL6.EHE. ML:0.7 3.37039805E-5 0.2432 AML other m 2021-02-22T17:27:58.76
IV.EL6.EHN. ML:0.7 3.57353935E-5 0.3968 AML other m 2021-02-22T17:28:00.01
IV.CESI.HHE. ML:0.2 1.0509276E-5 0.0896 AML other m 2021-02-22T17:27:59.72
IV.CESI.HHN. ML:0.2 1.04130705E-5 0.0896 AML other m 2021-02-22T17:27:59.77
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