Earthquake with magnitude of ML 1.2 on date 14-09-2021 and time 14:54:49 (Italy) in region 2 km N Fiastra (MC)

A magnitude ML 1.2 earthquake occured in region: 2 km N Fiastra (MC), on

  • 14-09-2021 12:54:49 (UTC)
  • 14-09-2021 14:54:49 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.054, 13.16 at 8 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
Fiastra MC 2 559 559
Acquacanina MC 3 121 680
Fiordimonte MC 6 202 882
Pievebovigliana MC 6 866 1748
Bolognola MC 9 142 1890
Pieve Torina MC 9 1458 3348
Muccia MC 10 915 4263
Cessapalombo MC 10 512 4775
Caldarola MC 11 1823 6598
Sarnano MC 12 3264 9862
Camerino MC 12 6974 16836
Camporotondo di Fiastrone MC 12 563 17399
Ussita MC 12 444 17843
Belforte del Chienti MC 14 1886 19729
Serrapetrona MC 14 966 20695
San Ginesio MC 14 3498 24193
Monte Cavallo MC 15 145 24338
Gualdo MC 15 815 25153
Visso MC 15 1107 26260
Serravalle di Chienti MC 17 1070 27330
Castelsantangelo sul Nera MC 18 281 27611
Amandola FM 18 3629 31240
Montefortino FM 19 1178 32418
Castelraimondo MC 19 4587 37005
Ripe San Ginesio MC 20 852 37857
San Severino Marche MC 20 12726 50583
Sant'Angelo in Pontano MC 20 1436 52019
Pioraco MC 20 1134 53153
Sefro MC 20 422 53575

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
62 Km NW of Teramo (54892 inhabitants)
63 Km E of Perugia (166134 inhabitants)
69 Km NE of Terni (111501 inhabitants)
69 Km SW of Ancona (100861 inhabitants)
81 Km N of L'Aquila (69753 inhabitants)
89 Km S of Fano (60888 inhabitants)
97 Km S of Pesaro (94582 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 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 1.2 2021-09-14
12:54:49
43.0542 13.1602 8 2021-09-14
13:03:32
Sala Sismica INGV-Roma 95422711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-09-14 12:54:49 ± 0.18
Latitude 43.0542 ± 0.0045
Longitude 13.1602 ± 0.0062
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 95422711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 518
Semi-minor axis of confidence ellipse (meter) 144
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 255
Circular confidence region, given by single value of horizontal uncertainty (meter) 520
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.04946
Epicentral distance of station farthest from the epicenter (degree) 0.27879
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:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 95422711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-09-14 13:03:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-09-14T12:55:00.11 0.6 undecidable manual S 351 0.2788 104 0.06 48
IV.MF5.EHZ. 2021-09-14T12:54:58.59 0.3 undecidable manual S 107 0.2284 107 0.39 68
IV.NRCA.HHZ. 2021-09-14T12:54:57.80 0.3 undecidable manual S 189 0.223 107 -0.19 71
IV.MC2.EHZ. 2021-09-14T12:54:55.29 0.3 undecidable manual S 172 0.1439 115 0.14 73
IV.MML1.EHZ. 2021-09-14T12:54:55.93 0.3 undecidable manual S 293 0.1502 115 0.58 66
IV.EL6.EHZ. 2021-09-14T12:54:55.07 0.1 undecidable manual P 351 0.2788 104 -0.31 91
IV.GUMA.HHZ. 2021-09-14T12:54:54.76 0.3 undecidable manual S 86 0.1277 118 0.16 73
IV.MF5.EHZ. 2021-09-14T12:54:54.40 0.1 undecidable manual P 107 0.2284 107 0.08 97
IV.NRCA.HHZ. 2021-09-14T12:54:53.93 0.1 undecidable manual P 189 0.223 107 -0.26 93
IV.MML1.EHZ. 2021-09-14T12:54:52.98 1.0 undecidable manual P 293 0.1502 115 0.31 23
IV.GUMA.HHZ. 2021-09-14T12:54:52.26 0.1 undecidable manual P 86 0.1277 118 0.02 100
IV.MC2.EHZ. 2021-09-14T12:54:52.50 0.6 undecidable manual P 172 0.1439 115 -0.06 50
IV.CSP1.EHZ. 2021-09-14T12:54:51.95 0.3 undecidable manual S 41 0.0495 144 -0.32 72
IV.CSP1.EHZ. 2021-09-14T12:54:50.78 0.1 undecidable manual P 41 0.0495 144 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUMA.HHN. ML:1.4 0.0002765 1.78 AML other m 2021-09-14T12:54:55.90
IV.GUMA.HHE. ML:1.2 0.000186 1.46 AML other m 2021-09-14T12:54:55.15
IV.MML1.EHE. ML:0.7 4.36E-5 0.24 AML other m 2021-09-14T12:54:56.27
IV.MML1.EHN. ML:0.8 5.295E-5 0.42 AML other m 2021-09-14T12:54:56.36
IV.NRCA.HHN. ML:1.6 0.000226 0.14 AML other m 2021-09-14T12:54:59.28
IV.NRCA.HHE. ML:1.2 0.00010915 0.5 AML other m 2021-09-14T12:55:00.32
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