Earthquake with magnitude of ML 1.1 on date 19-08-2021 and time 06:36:44 (Italy) in region 2 km W Colmurano (MC)

A magnitude ML 1.1 earthquake occured in region: 2 km W Colmurano (MC), on

  • 19-08-2021 04:36:44 (UTC)
  • 19-08-2021 06:36:44 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1640, 13.3330 at 24 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
Colmurano MC 2 1263 1263
Ripe San Ginesio MC 4 852 2115
Urbisaglia MC 5 2628 4743
San Ginesio MC 6 3498 8241
Camporotondo di Fiastrone MC 6 563 8804
Tolentino MC 6 20069 28873
Loro Piceno MC 7 2401 31274
Belforte del Chienti MC 8 1886 33160
Cessapalombo MC 9 512 33672
Sant'Angelo in Pontano MC 9 1436 35108
Caldarola MC 9 1823 36931
Gualdo MC 11 815 37746
Montappone FM 12 1682 39428
Massa Fermana FM 12 963 40391
Pollenza MC 12 6618 47009
Serrapetrona MC 12 966 47975
Mogliano MC 12 4696 52671
Petriolo MC 13 1998 54669
Falerone FM 13 3337 58006
Monte Vidon Corrado FM 13 731 58737
Penna San Giovanni MC 14 1108 59845
Sarnano MC 14 3264 63109
San Severino Marche MC 15 12726 75835
Servigliano FM 16 2336 78171
Treia MC 17 9403 87574
Monte San Martino MC 17 765 88339
Francavilla d'Ete FM 17 964 89303
Montegiorgio FM 17 6851 96154
Corridonia MC 17 15430 111584
Macerata MC 18 42473 154057
Belmonte Piceno FM 19 646 154703
Acquacanina MC 20 121 154824
Smerillo FM 20 365 155189

Municipalities with at least 50000 inhabitants

An earthquake occurred to
53 Km S of Ancona (100861 inhabitants)
56 Km E of Foligno (57155 inhabitants)
64 Km NW of Teramo (54892 inhabitants)
77 Km E of Perugia (166134 inhabitants)
80 Km SE of Fano (60888 inhabitants)
87 Km NE of Terni (111501 inhabitants)
90 Km SE of Pesaro (94582 inhabitants)
90 Km N of L'Aquila (69753 inhabitants)
98 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 1.1 2021-08-19
04:36:44
43.1637 13.3333 24 2021-08-19
04:47:14
Sala Sismica INGV-Roma 94357181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-19 04:36:44 ± 0.13
Latitude 43.1637 ± 0.0027
Longitude 13.3333 ± 0.0062
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 94357181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 474
Semi-minor axis of confidence ellipse (meter) 127
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 143
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.36692
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 94357181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-19 04:47:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2021-08-19T04:36:59.15 0.3 undecidable manual S 206 40.7259 114 0.17 68
IV.MMO1.EHZ. 2021-08-19T04:36:56.20 0.1 undecidable manual S 181 29.3484 124 -0.11 96
IV.MC2.EHZ. 2021-08-19T04:36:56.79 0.3 undecidable manual S 203 30.3474 123 0.25 69
IV.MF5.EHZ. 2021-08-19T04:36:55.03 0.1 undecidable manual S 152 22.0668 133 0.25 93
IV.EL6.EHZ. 2021-08-19T04:36:55.79 0.1 undecidable manual S 315 26.2515 127 0.15 96
IV.FDMO.HHZ. 2021-08-19T04:36:55.13 0.3 undecidable manual S 235 24.4533 129 -0.12 73
IV.CING.HHZ. 2021-08-19T04:36:55.61 0.3 undecidable manual S 335 26.0517 127 0.02 73
IV.CSP1.EHZ. 2021-08-19T04:36:53.13 0.1 undecidable manual S 233 13.0758 148 -0.12 98
IV.GUMA.HHZ. 2021-08-19T04:36:52.95 0.1 undecidable manual S 179 11.1777 152 -0.05 100
IV.NRCA.HHZ. 2021-08-19T04:36:52.88 0.1 undecidable manual P 206 40.7259 114 -0.13 94
IV.MC2.EHZ. 2021-08-19T04:36:51.65 0.6 positive manual P 203 30.3474 123 0.05 48
IV.MMO1.EHZ. 2021-08-19T04:36:51.21 0.1 undecidable manual P 181 29.3484 124 -0.26 93
IV.MNTT.EHZ. 2021-08-19T04:36:51.03 0.1 undecidable manual P 118 24.0537 130 0.21 94
IV.EL6.EHZ. 2021-08-19T04:36:51.28 0.3 undecidable manual P 315 26.2515 127 0.19 71
IV.FDMO.HHZ. 2021-08-19T04:36:50.75 0.3 undecidable manual P 235 24.4533 129 -0.12 72
IV.CING.HHZ. 2021-08-19T04:36:50.98 0.1 undecidable manual P 335 26.0517 127 -0.08 96
IV.MF5.EHZ. 2021-08-19T04:36:50.57 0.1 undecidable manual P 152 22.0668 133 -0.02 99
IV.GUMA.HHZ. 2021-08-19T04:36:49.48 0.1 undecidable manual P 179 11.1777 152 -0.08 99
IV.CSP1.EHZ. 2021-08-19T04:36:49.59 0.1 undecidable manual P 233 13.0758 148 -0.12 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:1.0 0.000042300000000000005 0.2 AML other m 2021-08-19T04:36:55.43
IV.FDMO.HHN. ML:0.8 0.000023475144999999998 0.1024 AML other m 2021-08-19T04:36:56.33
IV.CSP1.EHE. ML:1.2 0.00008942715500000001 0.1984 AML other m 2021-08-19T04:36:53.55
IV.CSP1.EHN. ML:1.2 0.00010043355500000001 0.1792 AML other m 2021-08-19T04:36:53.29
IV.MF5.EHE. ML:1.3 0.000086976125 1.04 AML other m 2021-08-19T04:36:59.30
IV.MF5.EHN. ML:1.2 0.000067500255 1.5008 AML other m 2021-08-19T04:37:04.17
IV.CING.HHE. ML:0.8 0.000024670875000000003 0.16 AML other m 2021-08-19T04:36:56.14
IV.CING.HHN. ML:0.9 0.000036721185 0.1984 AML other m 2021-08-19T04:36:55.79
IV.MNTT.EHE. ML:1.8 0.0002624425 0.1408 AML other m 2021-08-19T04:37:00.18
IV.MNTT.EHN. ML:1.5 0.000127885875 0.2208 AML other m 2021-08-19T04:36:58.26
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