Earthquake with magnitude of ML 1.3 on date 21-10-2021 and time 18:44:43 (Italy) in region 6 km SW Caldarola (MC)

A magnitude ML 1.3 earthquake occured in region: 6 km SW Caldarola (MC), on

  • 21-10-2021 16:44:43 (UTC)
  • 21-10-2021 18:44:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.102, 13.173 at 7 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
Caldarola MC 6 1823 1823
Cessapalombo MC 7 512 2335
Fiastra MC 7 559 2894
Acquacanina MC 8 121 3015
Camporotondo di Fiastrone MC 8 563 3578
Pievebovigliana MC 8 866 4444
Serrapetrona MC 9 966 5410
Belforte del Chienti MC 9 1886 7296
Camerino MC 9 6974 14270
Fiordimonte MC 10 202 14472
Muccia MC 11 915 15387
San Ginesio MC 12 3498 18885
Pieve Torina MC 12 1458 20343
Bolognola MC 13 142 20485
Sarnano MC 13 3264 23749
Gualdo MC 14 815 24564
San Severino Marche MC 14 12726 37290
Tolentino MC 15 20069 57359
Castelraimondo MC 15 4587 61946
Ripe San Ginesio MC 17 852 62798
Colmurano MC 17 1263 64061
Gagliole MC 18 620 64681
Pioraco MC 18 1134 65815
Ussita MC 18 444 66259
Sant'Angelo in Pontano MC 18 1436 67695
Serravalle di Chienti MC 18 1070 68765
Monte Cavallo MC 18 145 68910
Sefro MC 19 422 69332
Urbisaglia MC 20 2628 71960

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Foligno (57155 inhabitants)
64 Km E of Perugia (166134 inhabitants)
64 Km SW of Ancona (100861 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
74 Km NE of Terni (111501 inhabitants)
83 Km S of Fano (60888 inhabitants)
85 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 1.3 2021-10-21
16:44:43
43.1022 13.1733 7 2021-10-21
16:50:15
Sala Sismica INGV-Roma 96851241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-21 16:44:43 ± 0.08
Latitude 43.1022 ± 0.0036
Longitude 13.1733 ± 0.0074
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 96851241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 549
Semi-minor axis of confidence ellipse (meter) 405
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 99
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.48563
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 96851241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-21 16:50:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2021-10-21T16:45:34.79 3.0 undecidable manual Sn 1.67 0
IV.PE3.EHZ. 2021-10-21T16:45:12.12 3.0 undecidable manual S 0.7 0
IV.PIEI.HHZ. 2021-10-21T16:45:07.05 3.0 undecidable manual S 0.14 0
IV.SMA1.EHZ. 2021-10-21T16:45:01.78 0.3 undecidable manual S 166 0.4856 50 0.13 70
IV.ARVD.HHZ. 2021-10-21T16:45:00.20 0.6 undecidable manual S 337 0.4299 50 0.2 46
IV.ASSB.HHZ. 2021-10-21T16:44:58.32 0.3 undecidable manual S 261 0.3804 50 -0.2 70
IV.FOSV.EHZ. 2021-10-21T16:44:57.81 0.6 undecidable manual S 303 0.357 50 -0.01 49
IV.NRCA.HHZ. 2021-10-21T16:44:54.25 0.3 undecidable manual S 189 0.2716 104 -0.5 67
IV.SMA1.EHZ. 2021-10-21T16:44:54.07 0.6 negative manual P 166 0.4856 50 -0.11 47
IV.CING.HHZ. 2021-10-21T16:44:54.63 0.6 undecidable manual S 3 0.2734 104 -0.19 48
IV.ARVD.HHZ. 2021-10-21T16:44:53.33 0.1 undecidable manual P 337 0.4299 50 0.1 95
IV.CESI.HHZ. 2021-10-21T16:44:53.42 0.6 undecidable manual S 244 0.2185 107 0.64 43
IV.ASSB.HHZ. 2021-10-21T16:44:52.01 0.3 negative manual P 261 0.3804 50 -0.36 68
IV.FOSV.EHZ. 2021-10-21T16:44:51.95 0.1 undecidable manual P 303 0.357 50 -0.02 98
IV.NRCA.HHZ. 2021-10-21T16:44:50.04 0.3 positive manual P 189 0.2716 104 -0.16 73
IV.CING.HHZ. 2021-10-21T16:44:50.04 0.6 negative manual P 3 0.2734 104 -0.2 48
IV.MF5.EHZ. 2021-10-21T16:44:49.95 0.1 undecidable manual P 119 0.2383 106 0.47 91
IV.CESI.HHZ. 2021-10-21T16:44:49.27 0.6 negative manual P 244 0.2185 107 0.21 48
IV.FDMO.HHZ. 2021-10-21T16:44:48.49 0.6 undecidable manual S 224 0.0908 126 0.18 50
IV.FDMO.HHZ. 2021-10-21T16:44:46.64 0.1 positive manual P 224 0.0908 126 0.17 100
IV.CSP1.EHZ. 2021-10-21T16:44:46.32 0.6 undecidable manual S 114 0.0252 159 -0.39 48
IV.CSP1.EHZ. 2021-10-21T16:44:45.46 0.6 undecidable manual P 114 0.0252 159 -0.09 51
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.6 0.0005865 0.16 AML other m 2021-10-21T16:44:48.54
IV.FDMO.HHN. ML:1.6 0.0005515 0.12 AML other m 2021-10-21T16:44:48.60
IV.CESI.HHE. ML:1.1 8.195E-5 0.6 AML other m 2021-10-21T16:44:53.55
IV.CESI.HHN. ML:1.1 7.525E-5 0.64 AML other m 2021-10-21T16:44:54.54
IV.CING.HHE. ML:1.2 8.6E-5 0.12 AML other m 2021-10-21T16:44:55.17
IV.CING.HHN. ML:1.2 7.24E-5 0.72 AML other m 2021-10-21T16:44:56.46
IV.NRCA.HHE. ML:1.4 0.000135 0.5 AML other m 2021-10-21T16:44:56.97
IV.NRCA.HHN. ML:1.5 0.0001635 1.56 AML other m 2021-10-21T16:44:56.15
IV.FOSV.EHE. ML:1.2 5.98E-5 0.38 AML other m 2021-10-21T16:44:57.97
IV.FOSV.EHN. ML:1.4 7.86E-5 0.22 AML other m 2021-10-21T16:44:57.94
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