Earthquake with magnitude of ML 1.3 on date 21-02-2021 and time 23:37:23 (Italy) in region 3 km N Acquacanina (MC)

A magnitude ML 1.3 earthquake occured in region: 3 km N Acquacanina (MC), on

  • 21-02-2021 22:37:23 (UTC)
  • 21-02-2021 23:37:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.06, 13.18 at 29 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
Acquacanina MC 3 121 121
Fiastra MC 3 559 680
Fiordimonte MC 8 202 882
Pievebovigliana MC 8 866 1748
Bolognola MC 8 142 1890
Cessapalombo MC 9 512 2402
Caldarola MC 10 1823 4225
Sarnano MC 10 3264 7489
Pieve Torina MC 11 1458 8947
Camporotondo di Fiastrone MC 11 563 9510
Muccia MC 11 915 10425
San Ginesio MC 13 3498 13923
Camerino MC 13 6974 20897
Belforte del Chienti MC 13 1886 22783
Ussita MC 13 444 23227
Gualdo MC 13 815 24042
Serrapetrona MC 14 966 25008
Visso MC 16 1107 26115
Monte Cavallo MC 16 145 26260
Amandola FM 17 3629 29889
Castelsantangelo sul Nera MC 18 281 30170
Ripe San Ginesio MC 18 852 31022
Montefortino FM 18 1178 32200
Sant'Angelo in Pontano MC 18 1436 33636
Serravalle di Chienti MC 19 1070 34706
Colmurano MC 19 1263 35969
Tolentino MC 19 20069 56038
San Severino Marche MC 19 12726 68764
Castelraimondo MC 20 4587 73351
Penna San Giovanni MC 20 1108 74459

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
65 Km E of Perugia (166134 inhabitants)
68 Km SW of Ancona (100861 inhabitants)
70 Km NE of Terni (111501 inhabitants)
80 Km N of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
97 Km S of Pesaro (94582 inhabitants)
100 Km NW of Montesilvano (53738 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 1.3 2021-02-21
22:37:23
43.06 13.18 29 2021-02-21
22:44:34
Sala Sismica INGV-Roma 87363581
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-21 22:37:23 ± 0.2
Latitude 43.06 ± 0.01
Longitude 13.18 ± 0.01
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 87363581

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 969
Semi-minor axis of confidence ellipse (meter) 80
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 75
Circular confidence region, given by single value of horizontal uncertainty (meter) 970
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 61
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.27789
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 87363581
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-21 22:44:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HHZ. 2021-02-21T22:37:43.45 3.0 undecidable manual S 0.33 0
IV.RM33.HNZ. 2021-02-21T22:37:40.22 3.0 undecidable manual S -3.48 0
IV.EL6.EHZ. 2021-02-21T22:37:36.07 0.3 undecidable manual S 348 0.2779 128 0.56 64
IV.PIEI.HHZ. 2021-02-21T22:37:36.34 3.0 negative manual P 0.04 0
IV.ATFO.HHZ. 2021-02-21T22:37:34.62 3.0 positive manual P 0.08 0
IV.NRCA.HHZ. 2021-02-21T22:37:34.53 0.3 undecidable manual S 192 0.2284 135 0.12 73
IV.MF5.EHZ. 2021-02-21T22:37:34.50 0.3 undecidable manual S 109 0.2149 136 0.36 69
IV.CAMP.HHZ. 2021-02-21T22:37:34.19 3.0 positive manual P -0.38 0
IV.TERO.HHZ. 2021-02-21T22:37:34.13 3.0 undecidable manual P -0.23 0
IV.MMO1.EHZ. 2021-02-21T22:37:33.63 0.3 undecidable manual S 146 0.1907 140 -0.02 74
IV.MML1.EHZ. 2021-02-21T22:37:33.51 0.3 undecidable manual S 290 0.1628 145 0.36 69
IV.ARVD.HHZ. 2021-02-21T22:37:33.24 3.0 undecidable manual P -0.2 0
IV.MC2.EHZ. 2021-02-21T22:37:33.11 0.3 undecidable manual S 178 0.1457 148 0.24 72
IV.ATCC.EHZ. 2021-02-21T22:37:32.51 3.0 positive manual P -0.05 0
IV.SMA1.EHZ. 2021-02-21T22:37:32.43 3.0 negative manual P -0.48 0
IV.GUMA.HHZ. 2021-02-21T22:37:32.58 0.6 undecidable manual S 87 0.1133 154 0.18 49
IV.GAVE.EHZ. 2021-02-21T22:37:32.80 3.0 negative manual P 0.15 0
IV.CSP1.EHZ. 2021-02-21T22:37:31.53 0.3 undecidable manual S 27 0.0387 171 -0.2 74
IV.ASSB.HHZ. 2021-02-21T22:37:31.91 3.0 positive manual P -0.12 0
IV.FDMO.HHZ. 2021-02-21T22:37:31.81 0.3 undecidable manual S 253 0.071 163 -0.14 74
IV.FOSV.EHZ. 2021-02-21T22:37:31.92 3.0 positive manual P -0.15 0
IV.PF6.EHE. 2021-02-21T22:37:31.55 0.3 undecidable manual S 7 0.0809 161 -0.5 69
IV.EL6.EHZ. 2021-02-21T22:37:30.15 0.6 positive manual P 348 0.2779 128 -0.09 48
IV.CESI.HHZ. 2021-02-21T22:37:29.55 3.0 negative manual P 0.11 0
IV.MMO1.EHZ. 2021-02-21T22:37:29.02 0.6 positive manual P 146 0.1907 140 -0.14 48
IV.NRCA.HHZ. 2021-02-21T22:37:29.54 0.1 undecidable manual P 192 0.2284 135 -0.06 97
IV.MF5.EHZ. 2021-02-21T22:37:29.54 0.1 undecidable manual P 109 0.2149 136 0.1 97
IV.GUMA.HHZ. 2021-02-21T22:37:28.38 0.1 positive manual P 87 0.1133 154 -0.05 100
IV.MC2.EHZ. 2021-02-21T22:37:28.81 0.1 negative manual P 178 0.1457 148 0.1 98
IV.MML1.EHZ. 2021-02-21T22:37:28.90 0.1 undecidable manual P 290 0.1628 145 0.03 99
IV.SAP2.EHE. 2021-02-21T22:37:28.91 1.0 undecidable manual P 76 0.1646 145 0.02 25
IV.FDMO.HHZ. 2021-02-21T22:37:28.05 0.1 undecidable manual P 253 0.071 163 -0.13 99
IV.PF6.EHE. 2021-02-21T22:37:27.89 0.1 undecidable manual P 7 0.0809 161 -0.34 95
IV.CSP1.EHZ. 2021-02-21T22:37:27.94 0.1 positive manual P 27 0.0387 171 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.7 0.00029283905 0.0768 AML other m 2021-02-21T22:37:31.72
IV.CSP1.EHE. ML:1.7 0.00027870755 0.0896 AML other m 2021-02-21T22:37:31.67
IV.FDMO.HHN. ML:1.4 0.00011425 0.42 AML other m 2021-02-21T22:37:32.23
IV.GUMA.HHE. ML:1.7 0.000224 0.2 AML other m 2021-02-21T22:37:32.70
IV.GUMA.HHN. ML:1.6 0.0002075 0.22 AML other m 2021-02-21T22:37:32.73
IV.FDMO.HHE. ML:1.1 6.68E-5 0.14 AML other m 2021-02-21T22:37:33.15
IV.NRCA.HHE. ML:1.8 0.0002355 0.24 AML other m 2021-02-21T22:37:34.80
IV.NRCA.HHN. ML:1.5 0.00012075688 0.128 AML other m 2021-02-21T22:37:35.51
IV.CESI.HHE. ML:1.2 6.8186245E-5 0.1024 AML other m 2021-02-21T22:37:34.69
IV.CESI.HHN. ML:1.4 9.189915E-5 0.1152 AML other m 2021-02-21T22:37:35.02
IV.EL6.EHE. ML:1.2 5.5627525E-5 0.1408 AML other m 2021-02-21T22:37:36.27
IV.EL6.EHN. ML:1.3 6.72005E-5 1.06 AML other m 2021-02-21T22:37:36.69
IV.FOSV.EHE. ML:1.6 9.7630755E-5 0.2432 AML other m 2021-02-21T22:37:39.17
IV.FOSV.EHN. ML:1.9 0.000222 0.26 AML other m 2021-02-21T22:37:39.42
IV.SMA1.EHN. ML:1 2.277866E-5 0.2176 AML other m 2021-02-21T22:37:40.20
IV.ATCC.EHN. ML:1.2 3.7040365E-5 0.192 AML other m 2021-02-21T22:37:40.76
IV.ATCC.EHE. ML:1.2 3.7E-5 0.24 AML other m 2021-02-21T22:37:40.59
IV.SMA1.EHE. ML:1 1.7636425E-5 0.448 AML other m 2021-02-21T22:37:46.93
IV.GUMA.HNE. ML:1.5 0.00014321475 0.3072 AML other m 2021-02-21T22:37:34.73
IV.MF5.EHE. ML:1.2 5.2595425E-5 0.192 AML other m 2021-02-21T22:37:35.28
IV.MF5.EHN. ML:1.1 4.741162E-5 0.1792 AML other m 2021-02-21T22:37:35.02
IV.NRCA.HNE. ML:1.9 0.000292810555 0.4736 AML other m 2021-02-21T22:37:34.59
IV.NRCA.HNN. ML:1.8 0.00023311285 0.6784 AML other m 2021-02-21T22:37:34.50
IV.ASSB.HHE. ML:1.1 2.8343425E-5 0.128 AML other m 2021-02-21T22:37:39.97
IV.ASSB.HHN. ML:1.4 5.7593005E-5 0.1792 AML other m 2021-02-21T22:37:39.90
IV.GAVE.EHN. ML:1.1 3.009804E-5 0.1792 AML other m 2021-02-21T22:37:41.26
IV.GAVE.HNE. ML:1.8 0.0001582376 0.7296 AML other m 2021-02-21T22:37:41.93
IV.ARVD.HHE. ML:0.4 6.888124E-6 0.1536 AML other m 2021-02-21T22:37:43.17
IV.ARVD.HHN. ML:0.4 6.7082785E-6 0.192 AML other m 2021-02-21T22:37:42.05
IV.TERO.HHE. ML:0.9 1.4175925E-5 0.1408 AML other m 2021-02-21T22:37:44.33
IV.TERO.HHN. ML:0.9 1.3311541E-5 0.064 AML other m 2021-02-21T22:37:43.74
IV.ATFO.HHE. ML:1.3 3.855527E-5 0.2816 AML other m 2021-02-21T22:37:44.02
IV.ATFO.HHN. ML:1 2.170009E-5 0.3072 AML other m 2021-02-21T22:37:44.06
IV.PIEI.HHE. ML:1 1.5274265E-5 0.1024 AML other m 2021-02-21T22:37:48.75
IV.PIEI.HHN. ML:1 1.3153685E-5 0.1664 AML other m 2021-02-21T22:37:47.67
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