Earthquake with magnitude of ML 0.6 on date 22-08-2021 and time 10:20:23 (Italy) in region 3 km E Pievebovigliana (MC)

A magnitude ML 0.6 earthquake occured in region: 3 km E Pievebovigliana (MC), on

  • 22-08-2021 08:20:23 (UTC)
  • 22-08-2021 10:20:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.065, 13.122 at 8 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
Pievebovigliana MC 3 866 866
Fiordimonte MC 4 202 1068
Fiastra MC 4 559 1627
Acquacanina MC 6 121 1748
Pieve Torina MC 6 1458 3206
Muccia MC 7 915 4121
Camerino MC 9 6974 11095
Bolognola MC 12 142 11237
Caldarola MC 12 1823 13060
Cessapalombo MC 12 512 13572
Monte Cavallo MC 13 145 13717
Ussita MC 13 444 14161
Serrapetrona MC 14 966 15127
Serravalle di Chienti MC 14 1070 16197
Camporotondo di Fiastrone MC 14 563 16760
Belforte del Chienti MC 15 1886 18646
Sarnano MC 15 3264 21910
Visso MC 15 1107 23017
San Ginesio MC 17 3498 26515
Sefro MC 17 422 26937
Pioraco MC 17 1134 28071
Castelraimondo MC 17 4587 32658
Gualdo MC 18 815 33473
San Severino Marche MC 19 12726 46199
Castelsantangelo sul Nera MC 19 281 46480
Gagliole MC 20 620 47100

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
68 Km NE of Terni (111501 inhabitants)
69 Km SW of Ancona (100861 inhabitants)
82 Km N of L'Aquila (69753 inhabitants)
87 Km S of Fano (60888 inhabitants)
96 Km S of Pesaro (94582 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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 2021-08-22
08:20:23
43.0648 13.1223 8 2021-08-22
08:28:21
Sala Sismica INGV-Roma 94488431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-22 08:20:23 ± 0.14
Latitude 43.0648 ± 0.0027
Longitude 13.1223 ± 0.0049
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94488431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 390
Semi-minor axis of confidence ellipse (meter) 85
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 390
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.2644
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.6

Field Value
Value 0.6
Uncertainty 0.1
Num. used stations 5
Type of magnitude ML
Reference to an origin 94488431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-22 08:28:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-08-22T08:20:33.68 0.3 undecidable manual S 357 0.2644 105 -0.1 72
IV.MC2.EHZ. 2021-08-22T08:20:30.13 0.6 undecidable manual S 162 0.161 113 0.14 48
IV.MML1.EHZ. 2021-08-22T08:20:28.73 0.6 undecidable manual S 294 0.1205 120 0.15 49
IV.EL6.EHZ. 2021-08-22T08:20:28.94 1.0 undecidable manual P 357 0.2644 105 -0.39 23
IV.PF6.EHZ. 2021-08-22T08:20:27.61 0.6 undecidable manual S 36 0.0899 128 0 51
IV.MML1.EHZ. 2021-08-22T08:20:26.60 0.6 positive manual P 294 0.1205 120 0.28 48
IV.FDMO.HHZ. 2021-08-22T08:20:26.14 0.6 undecidable manual S 222 0.0378 151 -0.14 50
IV.MC2.EHZ. 2021-08-22T08:20:26.99 0.6 negative manual P 162 0.161 113 -0.15 48
IV.CSP1.EHZ. 2021-08-22T08:20:26.99 0.6 undecidable manual S 66 0.0657 136 0.07 50
IV.PF6.EHZ. 2021-08-22T08:20:25.82 0.1 undecidable manual P 36 0.0899 128 0.06 100
IV.CSP1.EHZ. 2021-08-22T08:20:25.49 0.6 positive manual P 66 0.0657 136 0.12 50
IV.FDMO.HHZ. 2021-08-22T08:20:24.88 0.1 undecidable manual P 222 0.0378 151 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1 0.000166 0.12 AML other m 2021-08-22T08:20:26.08
IV.FDMO.HHN. ML:0.9 0.000136 0.16 AML other m 2021-08-22T08:20:26.12
IV.CSP1.EHN. ML:0.7 9.605E-5 0.68 AML other m 2021-08-22T08:20:27.21
IV.CSP1.EHE. ML:0.7 9.19E-5 0.72 AML other m 2021-08-22T08:20:27.33
IV.MML1.EHN. ML:0.5 3.76E-5 0.16 AML other m 2021-08-22T08:20:28.91
IV.MML1.EHE. ML:0.6 4.315E-5 0.18 AML other m 2021-08-22T08:20:29.07
IV.CING.HHN. ML:0.6 1.25E-5 0.66 AML other m 2021-08-22T08:20:44.38
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