Earthquake with magnitude of ML 1.3 on date 26-07-2021 and time 05:41:33 (Italy) in region 4 km SE Apiro (MC)

A magnitude ML 1.3 earthquake occured in region: 4 km SE Apiro (MC), on

  • 26-07-2021 03:41:33 (UTC)
  • 26-07-2021 05:41:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3620, 13.1460 at 18 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
Apiro MC 4 2280 2280
Poggio San Vicino MC 6 246 2526
Cingoli MC 6 10352 12878
Staffolo AN 9 2253 15131
Cupramontana AN 10 4756 19887
San Paolo di Jesi AN 11 933 20820
Maiolati Spontini AN 13 6248 27068
Monte Roberto AN 13 3061 30129
Cerreto d'Esi AN 14 3817 33946
Castelbellino AN 14 4947 38893
Serra San Quirico AN 14 2850 41743
Treia MC 15 9403 51146
Gagliole MC 15 620 51766
Rosora AN 15 1985 53751
San Severino Marche MC 15 12726 66477
Mergo AN 15 1037 67514
Castelplanio AN 16 3540 71054
Matelica MC 16 9981 81035
Appignano MC 16 4213 85248
Poggio San Marcello AN 18 693 85941
Castelraimondo MC 18 4587 90528
Genga AN 19 1797 92325
Filottrano AN 19 9499 101824
Pollenza MC 19 6618 108442
Montecarotto AN 20 1987 110429
Fabriano AN 20 31480 141909
Jesi AN 20 40399 182308

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SW of Ancona (100861 inhabitants)
55 Km S of Fano (60888 inhabitants)
58 Km NE of Foligno (57155 inhabitants)
64 Km SE of Pesaro (94582 inhabitants)
68 Km E of Perugia (166134 inhabitants)
90 Km NW of Teramo (54892 inhabitants)
91 Km SE of Rimini (147750 inhabitants)
98 Km NE of Terni (111501 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 1.3 2021-07-26
03:41:33
43.3617 13.1458 18 2021-07-26
04:17:07
Sala Sismica INGV-Roma 93222451
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-26 03:41:33 ± 0.13
Latitude 43.3617 ± 0.0045
Longitude 13.1458 ± 0.0087
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 93222451

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 621
Semi-minor axis of confidence ellipse (meter) 505
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 274
Circular confidence region, given by single value of horizontal uncertainty (meter) 620.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 116
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.03867
Epicentral distance of station farthest from the epicenter (degree) 0.32735
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 93222451
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-07-26 04:17:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-07-26T03:41:46.03 0.6 undecidable manual S 187 36.3414 105 0.11 47
IV.MML1.EHZ. 2021-07-26T03:41:44.61 0.6 undecidable manual S 207 30.9468 109 0.08 47
IV.CSP1.EHZ. 2021-07-26T03:41:44.68 0.6 undecidable manual S 171 30.3474 109 0.3 45
IV.ARVD.HHZ. 2021-07-26T03:41:42.52 0.6 undecidable manual S 313 22.3554 118 0.09 48
IV.FDMO.HHZ. 2021-07-26T03:41:40.41 0.6 undecidable manual P 187 36.3414 105 -0.27 45
IV.CSP1.EHZ. 2021-07-26T03:41:39.78 0.6 negative manual P 171 30.3474 109 0 48
IV.CING.HHZ. 2021-07-26T03:41:39.31 0.6 undecidable manual S 69 4.2957 164 0.03 50
IV.MML1.EHZ. 2021-07-26T03:41:39.75 0.1 positive manual P 207 30.9468 109 -0.12 94
IV.EL6.EHZ. 2021-07-26T03:41:39.20 0.6 undecidable manual S 225 5.0949 161 -0.14 49
IV.ARVD.HHZ. 2021-07-26T03:41:38.77 0.6 negative manual P 313 22.3554 118 0.11 48
IV.PF6.EHN. 2021-07-26T03:41:38.85 0.6 undecidable manual P 171 25.1526 115 -0.2 47
IV.CING.HHZ. 2021-07-26T03:41:36.89 0.1 negative manual P 69 4.2957 164 0.05 100
IV.EL6.EHZ. 2021-07-26T03:41:36.91 1.0 undecidable manual P 225 5.0949 161 0.03 25
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CING.HHE. ML:1.6 0.000336 0.24 AML other m 2021-07-26T03:41:39.54
IV.EL6.EHE. ML:1.7 0.0004235 0.36 AML other m 2021-07-26T03:41:39.60
IV.CING.HHN. ML:1.4 0.0002670441 0.1808 AML other m 2021-07-26T03:41:39.50
IV.EL6.EHN. ML:1.5 0.00028705544999999997 0.12 AML other m 2021-07-26T03:41:40.18
IV.MML1.EHN. ML:1.2 0.000059749999999999995 0.36 AML other m 2021-07-26T03:41:44.79
IV.MML1.EHE. ML:1.4 0.0001053 0.16 AML other m 2021-07-26T03:41:44.76
IV.CSP1.EHE. ML:1.6 0.00014820192 0.2208 AML other m 2021-07-26T03:41:45.01
IV.CSP1.EHN. ML:1.6 0.0001922785395 0.1808 AML other m 2021-07-26T03:41:46.86
IV.FDMO.HHE. ML:1.0 0.00003835 1.56 AML other m 2021-07-26T03:41:47.86
IV.FDMO.HHN. ML:0.8 0.000026612825 0.12 AML other m 2021-07-26T03:41:47.24
IV.NARO.HHN. ML:1.4 0.0000591 0.8 AML other m 2021-07-26T03:41:58.59
IV.NARO.HHE. ML:1.1 0.0000276 0.42 AML other m 2021-07-26T03:42:05.28
IV.ARVD.HHE. ML:0.6 0.000022375595 0.08 AML other m 2021-07-26T03:41:42.84
IV.ARVD.HHN. ML:0.6 0.000019609691000000002 0.1808 AML other m 2021-07-26T03:41:44.69
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download