Earthquake with magnitude of ML 0.5 on date 23-10-2021 and time 07:49:37 (UTC) in region 1 km N Pievebovigliana (MC)

A magnitude ML 0.5 earthquake occured in region: 1 km N Pievebovigliana (MC), on

  • 23-10-2021 07:49:37 (UTC)
  • 23-10-2021 09:49:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.07, 13.087 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
Pievebovigliana MC 1 866 866
Fiordimonte MC 4 202 1068
Muccia MC 4 915 1983
Pieve Torina MC 4 1458 3441
Fiastra MC 7 559 4000
Camerino MC 8 6974 10974
Acquacanina MC 8 121 11095
Serravalle di Chienti MC 11 1070 12165
Monte Cavallo MC 11 145 12310
Caldarola MC 14 1823 14133
Sefro MC 14 422 14555
Bolognola MC 14 142 14697
Ussita MC 15 444 15141
Serrapetrona MC 15 966 16107
Cessapalombo MC 15 512 16619
Pioraco MC 15 1134 17753
Visso MC 15 1107 18860
Castelraimondo MC 16 4587 23447
Camporotondo di Fiastrone MC 16 563 24010
Belforte del Chienti MC 16 1886 25896
Sarnano MC 18 3264 29160
Fiuminata MC 18 1402 30562
Gagliole MC 19 620 31182
San Severino Marche MC 19 12726 43908
San Ginesio MC 19 3498 47406

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
57 Km E of Perugia (166134 inhabitants)
67 Km NE of Terni (111501 inhabitants)
68 Km NW of Teramo (54892 inhabitants)
70 Km SW of Ancona (100861 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
86 Km S of Fano (60888 inhabitants)
95 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 2021-10-23
07:49:37
43.0702 13.0872 11 2021-10-23
07:56:58
Sala Sismica INGV-Roma 96902771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-23 07:49:37 ± 0.05
Latitude 43.0702 ± 0.0027
Longitude 13.0872 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96902771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 346
Semi-minor axis of confidence ellipse (meter) 224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 345
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.23742
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 96902771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-23 07:56:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CRE.HHZ. 2021-10-23T07:50:07.85 3.0 undecidable manual S -0.71 0
IV.VCEL.EHZ. 2021-10-23T07:49:54.05 3.0 positive manual P 0.16 0
IV.PE3.EHZ. 2021-10-23T07:49:50.54 3.0 positive manual P -0.12 0
IV.NRCA.HHZ. 2021-10-23T07:49:46.92 0.3 undecidable manual S 175 0.2374 50 -0.06 71
IV.CESI.HHZ. 2021-10-23T07:49:44.31 0.3 undecidable manual S 244 0.1484 123 0.15 71
IV.MML1.EHZ. 2021-10-23T07:49:42.44 0.3 undecidable manual S 297 0.0944 135 -0.11 73
IV.NRCA.HHZ. 2021-10-23T07:49:42.90 0.1 undecidable manual P 175 0.2374 50 -0.02 96
IV.SNTG.HHZ. 2021-10-23T07:49:42.31 3.0 negative manual Pg 1.15 0
IV.CSP1.EHZ. 2021-10-23T07:49:42.47 0.1 undecidable manual S 76 0.089 137 0.09 97
IV.FDMO.HHZ. 2021-10-23T07:49:41.12 0.1 undecidable manual S 180 0.0333 161 -0.14 97
IV.CESI.HHZ. 2021-10-23T07:49:41.38 0.3 undecidable manual P 244 0.1484 123 0.09 72
IV.MC2.EHZ. 2021-10-23T07:49:41.98 3.0 positive manual Pg -0.14 0
IV.CSP1.EHZ. 2021-10-23T07:49:40.36 0.1 undecidable manual P 76 0.089 137 0.09 97
IV.MDAR.HNE. 2021-10-23T07:49:40.72 1.0 undecidable manual P 18 0.1286 126 -0.22 24
IV.MML1.EHZ. 2021-10-23T07:49:40.39 0.3 undecidable manual P 297 0.0944 135 0.03 74
IV.PF6.EHZ. 2021-10-23T07:49:40.46 0.1 undecidable manual P 49 0.1034 133 -0.04 98
IV.FDMO.HHZ. 2021-10-23T07:49:39.63 0.1 undecidable manual P 180 0.0333 161 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:0.3 2.976664E-5 0.0768 AML other m 2021-10-23T07:49:41.16
IV.FDMO.HHE. ML:0.3 3.717918E-5 0.0832 AML other m 2021-10-23T07:49:41.28
IV.CSP1.EHE. ML:0.8 7.787014E-5 0.1216 AML other m 2021-10-23T07:49:42.71
IV.CSP1.EHN. ML:0.8 7.08724E-5 0.1024 AML other m 2021-10-23T07:49:42.54
IV.MML1.EHE. ML:0.6 4.3718175E-5 0.16 AML other m 2021-10-23T07:49:42.68
IV.MML1.EHN. ML:0.3 2.595167E-5 0.1216 AML other m 2021-10-23T07:49:42.49
IV.CESI.HHN. ML:0.4 2.04298645E-5 0.1408 AML other m 2021-10-23T07:49:44.35
IV.CESI.HHE. ML:0.2 1.688137E-5 0.1152 AML other m 2021-10-23T07:49:44.35
IV.NRCA.HHN. ML:0.7 2.302128E-5 0.1024 AML other m 2021-10-23T07:49:48.65
IV.NRCA.HHE. ML:0.6 1.9095185E-5 0.0576 AML other m 2021-10-23T07:49:47.84
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