Earthquake with magnitude of ML 1.0 on date 21-08-2021 and time 23:08:26 (Italy) in region 5 km SE Fiordimonte (MC)

A magnitude ML 1.0 earthquake occured in region: 5 km SE Fiordimonte (MC), on

  • 21-08-2021 21:08:26 (UTC)
  • 21-08-2021 23:08:26 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9960, 13.1160 at 10 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
Fiordimonte MC 5 202 202
Fiastra MC 6 559 761
Ussita MC 6 444 1205
Acquacanina MC 6 121 1326
Visso MC 8 1107 2433
Pieve Torina MC 8 1458 3891
Pievebovigliana MC 8 866 4757
Bolognola MC 9 142 4899
Monte Cavallo MC 9 145 5044
Muccia MC 11 915 5959
Castelsantangelo sul Nera MC 12 281 6240
Preci PG 14 724 6964
Serravalle di Chienti MC 16 1070 8034
Sarnano MC 16 3264 11298
Camerino MC 16 6974 18272
Cessapalombo MC 17 512 18784
Caldarola MC 18 1823 20607
Sellano PG 19 1079 21686
Montefortino FM 19 1178 22864
Camporotondo di Fiastrone MC 20 563 23427
Amandola FM 20 3629 27056
Gualdo MC 20 815 27871

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
60 Km E of Perugia (166134 inhabitants)
61 Km NW of Teramo (54892 inhabitants)
62 Km NE of Terni (111501 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
95 Km S of Fano (60888 inhabitants)
100 Km NW of Montesilvano (53738 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.0 2021-08-21
21:08:26
42.9965 13.1155 10 2021-08-21
21:16:42
Sala Sismica INGV-Roma 94476271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-21 21:08:26 ± 0.1
Latitude 42.9965 ± 0.0036
Longitude 13.1155 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94476271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 388
Semi-minor axis of confidence ellipse (meter) 242
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 22
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.25181
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 94476271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-21 21:16:42
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRTC.HHZ. 2021-08-21T21:08:53.02 3.0 undecidable manual S -0.3 0
IV.MURB.HHZ. 2021-08-21T21:08:36.12 3.0 negative manual P 0.19 0
IV.MF5.EHZ. 2021-08-21T21:08:36.87 0.3 undecidable manual S 92 27.9498 50 0.53 65
IV.ATCC.EHZ. 2021-08-21T21:08:34.09 3.0 negative manual P 0.21 0
IV.GUMA.HHZ. 2021-08-21T21:08:33.97 0.3 undecidable manual S 68 19.2696 117 0.36 69
IV.CESI.HHZ. 2021-08-21T21:08:33.10 0.3 undecidable manual S 273 17.1717 120 0.15 73
IV.MMO1.EHZ. 2021-08-21T21:08:33.47 0.3 undecidable manual S 122 20.2686 116 -0.45 68
IV.ASSB.HHZ. 2021-08-21T21:08:32.92 3.0 undecidable manual P 0.06 0
IV.MML1.EHZ. 2021-08-21T21:08:32.80 0.3 undecidable manual S 318 17.4714 119 -0.25 71
IV.PF6.EHZ. 2021-08-21T21:08:32.67 0.3 undecidable manual S 22 16.9719 120 -0.22 71
IV.NRCA.HHZ. 2021-08-21T21:08:32.86 0.3 undecidable manual S 180 18.0708 118 -0.38 69
IV.MC2.EHZ. 2021-08-21T21:08:31.48 0.3 undecidable manual S 148 11.1777 131 0.22 72
IV.MF5.EHZ. 2021-08-21T21:08:31.95 0.3 undecidable manual P 92 27.9498 50 -0.06 72
IV.CSP1.EHZ. 2021-08-21T21:08:31.71 0.3 undecidable manual S 34 12.7761 127 0.01 75
IV.FEMA.HNZ. 2021-08-21T21:08:30.61 0.1 undecidable manual S 234 6.5934 146 0.42 93
IV.MMO1.EHZ. 2021-08-21T21:08:30.31 0.3 undecidable manual P 122 20.2686 116 -0.31 70
IV.GUMA.HHZ. 2021-08-21T21:08:30.49 0.3 undecidable manual P 68 19.2696 117 0.05 74
IV.MC2.EHZ. 2021-08-21T21:08:29.18 0.1 undecidable manual P 148 11.1777 131 0.1 99
IV.NRCA.HHZ. 2021-08-21T21:08:29.94 0.3 undecidable manual P 180 18.0708 118 -0.29 70
IV.CSP1.EHZ. 2021-08-21T21:08:29.32 0.1 undecidable manual P 34 12.7761 127 -0.02 100
IV.FDMO.HHZ. 2021-08-21T21:08:29.99 0.3 undecidable manual S 333 4.995 153 0.08 75
IV.MML1.EHZ. 2021-08-21T21:08:29.96 0.1 undecidable manual P 318 17.4714 119 -0.16 96
IV.CESI.HHZ. 2021-08-21T21:08:29.99 0.1 undecidable manual P 273 17.1717 120 -0.07 98
IV.PF6.EHZ. 2021-08-21T21:08:29.81 0.3 undecidable manual P 22 16.9719 120 -0.22 72
IV.FEMA.HNZ. 2021-08-21T21:08:28.73 0.3 undecidable manual P 234 6.5934 146 0.26 72
IV.FDMO.HHZ. 2021-08-21T21:08:28.40 0.1 undecidable manual P 333 4.995 153 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.4 0.000464 0.14 AML other m 2021-08-21T21:08:30.35
IV.FDMO.HHE. ML:1.1 0.00023249999999999999 0.42 AML other m 2021-08-21T21:08:30.47
IV.CSP1.EHN. ML:1.2 0.000193 1.22 AML other m 2021-08-21T21:08:31.95
IV.CSP1.EHE. ML:1.3 0.00019800000000000002 1.54 AML other m 2021-08-21T21:08:32.88
IV.NRCA.HHN. ML:1.1 0.00009685 1.9 AML other m 2021-08-21T21:08:33.02
IV.MML1.EHE. ML:0.8 0.00006110000000000001 0.32 AML other m 2021-08-21T21:08:33.13
IV.MML1.EHN. ML:1.0 0.00007960000000000001 0.12 AML other m 2021-08-21T21:08:33.19
IV.NRCA.HHE. ML:1.1 0.00010550000000000002 0.68 AML other m 2021-08-21T21:08:33.67
IV.CESI.HHN. ML:0.5 0.00002729681 0.3456 AML other m 2021-08-21T21:08:33.57
IV.GUMA.HHE. ML:1.2 0.00013550000000000001 0.22 AML other m 2021-08-21T21:08:34.14
IV.GUMA.HHN. ML:1.4 0.0001795 0.2 AML other m 2021-08-21T21:08:34.17
IV.CESI.HHE. ML:0.5 0.00002723254 0.64 AML other m 2021-08-21T21:08:33.97
IV.ASSB.HHE. ML:0.7 0.000018799999999999996 0.64 AML other m 2021-08-21T21:08:38.63
IV.ASSB.HHN. ML:0.7 0.0000178 0.4 AML other m 2021-08-21T21:08:38.77
IV.NRCA.HNE. ML:1.1 0.000094196015 0.0896 AML other m 2021-08-21T21:08:33.37
IV.NRCA.HNN. ML:1.1 0.00009627694000000001 0.1152 AML other m 2021-08-21T21:08:33.02
IV.MML1.HNN. ML:1.0 0.00009572140000000001 0.128 AML other m 2021-08-21T21:08:33.18
IV.GUMA.HNE. ML:1.3 0.00016297519999999998 0.256 AML other m 2021-08-21T21:08:34.13
IV.MF5.EHE. ML:0.8 0.000036250145000000004 0.2176 AML other m 2021-08-21T21:08:37.24
IV.MF5.EHN. ML:0.8 0.000030407165 0.448 AML other m 2021-08-21T21:08:37.14
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