Earthquake with magnitude of ML 1.8 on date 07-09-2021 and time 19:03:15 (UTC) in region 1 km W Sarnano (MC)

A magnitude ML 1.8 earthquake occured in region: 1 km W Sarnano (MC), on

  • 07-09-2021 19:03:15 (UTC)
  • 07-09-2021 21:03:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.041, 13.291 at 25 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
Sarnano MC 1 3264 3264
Gualdo MC 5 815 4079
Bolognola MC 7 142 4221
San Ginesio MC 8 3498 7719
Cessapalombo MC 8 512 8231
Amandola FM 9 3629 11860
Acquacanina MC 10 121 11981
Camporotondo di Fiastrone MC 10 563 12544
Sant'Angelo in Pontano MC 11 1436 13980
Fiastra MC 11 559 14539
Penna San Giovanni MC 11 1108 15647
Montefortino FM 12 1178 16825
Caldarola MC 12 1823 18648
Monte San Martino MC 12 765 19413
Ripe San Ginesio MC 13 852 20265
Smerillo FM 13 365 20630
Comunanza AP 14 3166 23796
Belforte del Chienti MC 15 1886 25682
Colmurano MC 15 1263 26945
Montefalcone Appennino FM 15 424 27369
Montemonaco AP 16 604 27973
Fiordimonte MC 16 202 28175
Ussita MC 16 444 28619
Falerone FM 17 3337 31956
Santa Vittoria in Matenano FM 17 1330 33286
Pievebovigliana MC 17 866 34152
Servigliano FM 17 2336 36488
Serrapetrona MC 17 966 37454
Loro Piceno MC 17 2401 39855
Montappone FM 18 1682 41537
Monte Vidon Corrado FM 18 731 42268
Force AP 18 1354 43622
Urbisaglia MC 19 2628 46250
Tolentino MC 19 20069 66319
Monteleone di Fermo FM 19 395 66714
Massa Fermana FM 19 963 67677
Pieve Torina MC 20 1458 69135
Castelsantangelo sul Nera MC 20 281 69416

Municipalities with at least 50000 inhabitants

An earthquake occurred to
49 Km E of Foligno (57155 inhabitants)
54 Km NW of Teramo (54892 inhabitants)
67 Km S of Ancona (100861 inhabitants)
74 Km E of Perugia (166134 inhabitants)
75 Km NE of Terni (111501 inhabitants)
77 Km N of L'Aquila (69753 inhabitants)
91 Km NW of Montesilvano (53738 inhabitants)
92 Km S of Fano (60888 inhabitants)
99 Km NW of Pescara (121014 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 earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.8 2021-09-07
19:03:15
43.0408 13.2912 25 2021-09-07
19:08:20
Sala Sismica INGV-Roma 95168781
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-07 19:03:15 ± 0.12
Latitude 43.0408 ± 0.0045
Longitude 13.2912 ± 0.0074
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95168781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 424
Semi-minor axis of confidence ellipse (meter) 371
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 283
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 114
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 21
Type of magnitude ML
Reference to an origin 95168781
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-07 19:08:20
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.NARO.HHZ. 2021-09-07T19:03:30.70 3.0 positive manual P 0.41 0
IV.CESI.HHZ. 2021-09-07T19:03:28.21 0.6 undecidable manual S 263 0.2851 122 0.42 44
IV.EL6.EHZ. 2021-09-07T19:03:28.95 0.6 undecidable manual S 334 0.3193 118 0.26 45
IV.FRON.EHZ. 2021-09-07T19:03:28.75 3.0 negative manual P 0.37 0
IV.MURB.HHZ. 2021-09-07T19:03:27.99 3.0 negative manual P 0.05 0
IV.MML1.EHZ. 2021-09-07T19:03:27.18 0.6 undecidable manual S 287 0.2446 126 0.38 45
IV.MOMA.HHZ. 2021-09-07T19:03:27.74 3.0 positive manual P 0.15 0
IT.MTCL.HGZ. 2021-09-07T19:03:26.11 0.6 undecidable manual S 258 0.2185 130 -0.09 48
IV.ATCC.EHZ. 2021-09-07T19:03:26.08 3.0 negative manual P -0.12 0
IV.NRCA.HHZ. 2021-09-07T19:03:26.66 0.6 undecidable manual S 212 0.2446 126 -0.14 47
IV.TERO.HHZ. 2021-09-07T19:03:25.77 3.0 undecidable manual P -0.22 0
IV.MC2.EHZ. 2021-09-07T19:03:25.02 0.6 undecidable manual S 210 0.1493 142 0.25 48
IV.ASSB.HHZ. 2021-09-07T19:03:25.38 3.0 undecidable manual P -0.2 0
IV.FDMO.HHZ. 2021-09-07T19:03:24.55 0.6 undecidable manual S 268 0.1493 142 -0.22 47
IV.MMO1.EHZ. 2021-09-07T19:03:24.65 0.6 undecidable manual S 170 0.1439 143 -0.02 49
IV.SAP2.EHZ. 2021-09-07T19:03:24.06 0.6 undecidable manual S 55 0.0962 154 0.13 49
IV.SMA1.EHZ. 2021-09-07T19:03:24.67 3.0 undecidable manual P -0.13 0
IV.EL6.EHZ. 2021-09-07T19:03:23.28 0.1 undecidable manual P 334 0.3193 118 0.03 95
IV.CING.HHZ. 2021-09-07T19:03:23.57 0.1 undecidable manual P 348 0.3417 116 -0.01 95
IV.GUMA.HHZ. 2021-09-07T19:03:23.62 0.6 undecidable manual S 56 0.0387 169 0.24 49
IV.CSP1.EHZ. 2021-09-07T19:03:23.58 0.6 undecidable manual S 309 0.0809 158 -0.16 48
IV.PF6.EHZ. 2021-09-07T19:03:23.87 0.6 undecidable manual S 324 0.1196 148 -0.4 46
IV.NRCA.HHZ. 2021-09-07T19:03:22.08 0.1 positive manual P 212 0.2446 126 -0.08 96
IV.MML1.EHZ. 2021-09-07T19:03:22.16 0.6 negative manual P 287 0.2446 126 0 49
IV.CESI.HHZ. 2021-09-07T19:03:22.78 0.1 negative manual P 263 0.2851 122 0.05 96
IV.MF5.EHZ. 2021-09-07T19:03:21.12 3.0 undecidable manual Pn 0.17 0
IV.MNTT.EHZ. 2021-09-07T19:03:21.99 3.0 negative manual P -0.09 0
IV.MC2.EHZ. 2021-09-07T19:03:21.10 0.1 positive manual P 210 0.1493 142 0.12 97
IT.MTCL.HGZ. 2021-09-07T19:03:21.72 0.1 undecidable manual P 258 0.2185 130 -0.09 96
IV.CSP1.EHZ. 2021-09-07T19:03:20.33 0.1 undecidable manual P 309 0.0809 158 -0.06 99
IV.PF6.EHZ. 2021-09-07T19:03:20.47 0.1 undecidable manual P 324 0.1196 148 -0.23 95
IV.SAP2.EHZ. 2021-09-07T19:03:20.74 0.6 negative manual P 55 0.0962 154 0.24 48
IV.FDMO.HHZ. 2021-09-07T19:03:20.84 0.1 undecidable manual P 268 0.1493 142 -0.14 96
IV.MMO1.EHZ. 2021-09-07T19:03:20.84 1.0 undecidable manual P 170 0.1439 143 -0.08 24
IV.GUMA.HHZ. 2021-09-07T19:03:20.26 0.1 undecidable manual P 56 0.0387 169 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHN. ML:1.9 0.0005425 0.26 AML other m 2021-09-07T19:03:23.70
IV.GUMA.HNE. ML:1.9 0.0005855 1.64 AML other m 2021-09-07T19:03:23.01
IV.GUMA.HHN. ML:1.9 0.0005125 1.66 AML other m 2021-09-07T19:03:23.01
IV.GUMA.HHE. ML:1.8 0.000418 1.66 AML other m 2021-09-07T19:03:23.01
IV.GUMA.HNN. ML:1.6 0.000276 1.72 AML other m 2021-09-07T19:03:23.00
IV.CSP1.EHE. ML:2 0.000645 1.4 AML other m 2021-09-07T19:03:24.71
IV.MNTT.EHN. ML:1.9 0.0003395 0.12 AML other m 2021-09-07T19:03:24.35
IV.SAP2.EHN. ML:2.2 0.000995 0.54 AML other m 2021-09-07T19:03:24.61
IV.SAP2.EHE. ML:1.5 0.0001965 0.6 AML other m 2021-09-07T19:03:25.07
IV.MF5.EHE. ML:1.4 0.000141 0.62 AML other m 2021-09-07T19:03:25.43
IV.MF5.EHN. ML:1.5 0.000191 0.38 AML other m 2021-09-07T19:03:25.32
IV.NRCA.HHN. ML:1.8 0.000262 1.16 AML other m 2021-09-07T19:03:26.39
IV.MML1.HNE. ML:1.6 0.000156 0.14 AML other m 2021-09-07T19:03:27.30
IV.MML1.EHE. ML:1.6 0.000171 0.16 AML other m 2021-09-07T19:03:27.38
IV.MML1.HNN. ML:2 0.000395 0.18 AML other m 2021-09-07T19:03:27.49
IV.MML1.EHN. ML:2 0.0003645 0.2 AML other m 2021-09-07T19:03:27.50
IV.NRCA.HHE. ML:2.1 0.0004765 0.62 AML other m 2021-09-07T19:03:27.32
IV.MNTT.EHE. ML:2 0.000385 0.36 AML other m 2021-09-07T19:03:28.18
IV.CESI.HHN. ML:1.8 0.0002425 1.06 AML other m 2021-09-07T19:03:28.34
IV.CESI.HHE. ML:1.4 0.00010135 0.52 AML other m 2021-09-07T19:03:28.92
IV.MTRA.EHE. ML:1.3 6.9E-5 0.76 AML other m 2021-09-07T19:03:29.22
IV.MTRA.EHN. ML:0 7.085E-5 0.98 AML other m 2021-09-07T19:03:29.88
IV.CING.HHE. ML:0 4.07E-5 0.54 AML other m 2021-09-07T19:03:29.81
IV.CING.HHN. ML:0 3.465E-5 1 AML other m 2021-09-07T19:03:30.61
IV.ASSB.HHE. ML:0 3.655E-5 0.64 AML other m 2021-09-07T19:03:33.02
IV.ASSB.HHN. ML:0 6.015E-5 0.1 AML other m 2021-09-07T19:03:34.16
IV.ATCC.EHE. ML:0 5.51E-5 0.52 AML other m 2021-09-07T19:03:35.75
IV.ATCC.EHN. ML:0 4.575E-5 0.18 AML other m 2021-09-07T19:03:35.50
IV.MOMA.HHN. ML:0 2.61E-5 1.12 AML other m 2021-09-07T19:03:37.82
IV.MOMA.HHE. ML:0 4.28E-5 0.7 AML other m 2021-09-07T19:03:38.84
IV.MURB.HHE. ML:0 6.145E-5 0.2 AML other m 2021-09-07T19:03:38.41
IV.MURB.HHN. ML:0 5.95E-5 1.3 AML other m 2021-09-07T19:03:39.09
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