Earthquake with magnitude of ML 0.5 on date 08-08-2021 and time 20:54:31 (Italy) in region 5 km NE Pievebovigliana (MC)

A magnitude ML 0.5 earthquake occured in region: 5 km NE Pievebovigliana (MC), on

  • 08-08-2021 18:54:31 (UTC)
  • 08-08-2021 20:54:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.101, 13.123 at 12 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 5 866 866
Camerino MC 6 6974 7840
Muccia MC 7 915 8755
Fiordimonte MC 8 202 8957
Fiastra MC 8 559 9516
Pieve Torina MC 9 1458 10974
Acquacanina MC 9 121 11095
Caldarola MC 9 1823 12918
Serrapetrona MC 10 966 13884
Cessapalombo MC 11 512 14396
Belforte del Chienti MC 12 1886 16282
Camporotondo di Fiastrone MC 12 563 16845
Castelraimondo MC 13 4587 21432
Pioraco MC 14 1134 22566
Serravalle di Chienti MC 14 1070 23636
Bolognola MC 15 142 23778
Sefro MC 15 422 24200
San Severino Marche MC 15 12726 36926
Monte Cavallo MC 15 145 37071
San Ginesio MC 16 3498 40569
Gagliole MC 16 620 41189
Sarnano MC 16 3264 44453
Ussita MC 17 444 44897
Tolentino MC 18 20069 64966
Gualdo MC 18 815 65781
Fiuminata MC 18 1402 67183
Visso MC 19 1107 68290
Matelica MC 20 9981 78271

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
66 Km SW of Ancona (100861 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
71 Km NE of Terni (111501 inhabitants)
83 Km S of Fano (60888 inhabitants)
86 Km N of L'Aquila (69753 inhabitants)
92 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 0.5 2021-08-08
18:54:31
43.1012 13.1232 12 2021-08-08
19:26:20
Sala Sismica INGV-Roma 93853851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-08 18:54:31 ± 0.08
Latitude 43.1012 ± 0.0036
Longitude 13.1232 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93853851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 402
Semi-minor axis of confidence ellipse (meter) 258
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 276
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) 95
Number of associated phases, regardless of their use for origin computation 14
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
Epicentral distance of station farthest from the epicenter (degree) 0.27969
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 93853851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-08 19:26:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CING.HNZ. 2021-08-08T18:54:42.11 0.3 undecidable manual S 11 0.2797 93 0.13 71
IV.MC2.EHZ. 2021-08-08T18:54:39.66 0.3 undecidable manual S 166 0.1952 97 0.15 72
IV.MURB.HHZ. 2021-08-08T18:54:39.81 3.0 undecidable manual P -0.13 0
IV.MML1.EHZ. 2021-08-08T18:54:37.15 0.3 undecidable manual S 276 0.1115 117 0.05 74
IV.CING.HNZ. 2021-08-08T18:54:37.17 0.3 undecidable manual P 11 0.2797 93 -0.27 69
IV.ARVD.HHZ. 2021-08-08T18:54:36.21 3.0 positive manual P 0.02 0
IV.CSP1.EHZ. 2021-08-08T18:54:36.05 0.3 undecidable manual S 99 0.0603 142 0.11 75
IV.FDMO.HHZ. 2021-08-08T18:54:35.91 0.3 undecidable manual S 202 0.0692 137 -0.21 72
IV.PF6.EHZ. 2021-08-08T18:54:35.95 0.3 undecidable manual S 55 0.0639 140 -0.05 75
IV.MC2.EHZ. 2021-08-08T18:54:35.93 0.3 undecidable manual P 166 0.1952 97 -0.09 73
IV.FDMO.HHZ. 2021-08-08T18:54:34.00 0.1 undecidable manual P 202 0.0692 137 -0.05 100
IV.MML1.EHZ. 2021-08-08T18:54:34.72 0.3 undecidable manual P 276 0.1115 117 0.1 74
IV.CSP1.EHZ. 2021-08-08T18:54:34.08 0.3 undecidable manual P 99 0.0603 142 0.13 74
IV.PF6.EHZ. 2021-08-08T18:54:33.97 0.3 undecidable manual P 55 0.0639 140 -0.02 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.4 3.245E-5 1.88 AML other m 2021-08-08T18:54:36.98
IV.FDMO.HHN. ML:0.4 2.835E-5 0.18 AML other m 2021-08-08T18:54:36.08
IV.MML1.EHN. ML:0.7 4.86E-5 0.16 AML other m 2021-08-08T18:54:37.31
IV.MML1.EHE. ML:0.4 2.645E-5 0.62 AML other m 2021-08-08T18:54:37.35
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