Earthquake with magnitude of ML 1.1 on date 23-05-2021 and time 13:46:37 (Italy) in region 2 km NE Fiordimonte (MC)

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

  • 23-05-2021 11:46:37 (UTC)
  • 23-05-2021 13:46:37 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0500, 13.1150 at 9 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 2 202 202
Pievebovigliana MC 3 866 1068
Fiastra MC 4 559 1627
Pieve Torina MC 5 1458 3085
Acquacanina MC 5 121 3206
Muccia MC 7 915 4121
Camerino MC 10 6974 11095
Monte Cavallo MC 11 145 11240
Bolognola MC 11 142 11382
Ussita MC 12 444 11826
Visso MC 13 1107 12933
Serravalle di Chienti MC 13 1070 14003
Caldarola MC 14 1823 15826
Cessapalombo MC 14 512 16338
Sarnano MC 15 3264 19602
Camporotondo di Fiastrone MC 15 563 20165
Serrapetrona MC 16 966 21131
Belforte del Chienti MC 16 1886 23017
Sefro MC 17 422 23439
Castelsantangelo sul Nera MC 17 281 23720
San Ginesio MC 18 3498 27218
Pioraco MC 18 1134 28352
Gualdo MC 18 815 29167
Castelraimondo MC 19 4587 33754
Preci PG 20 724 34478

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
59 Km E of Perugia (166134 inhabitants)
65 Km NW of Teramo (54892 inhabitants)
66 Km NE of Terni (111501 inhabitants)
71 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2021-05-23
11:46:37
43.0495 13.1148 9 2021-05-23
11:51:49
Sala Sismica INGV-Roma 90413401
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-23 11:46:37 ± 0.12
Latitude 43.0495 ± 0.0054
Longitude 13.1148 ± 0.0062
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90413401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 518
Semi-minor axis of confidence ellipse (meter) 488
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 8
Circular confidence region, given by single value of horizontal uncertainty (meter) 520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 115
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.39210
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 90413401
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-23 11:51:49
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHZ. 2021-05-23T11:46:55.23 3.0 undecidable manual P 0.01 0
IV.GAVE.HNZ. 2021-05-23T11:46:51.79 0.1 undecidable manual S 204 43.5231 50 -0.11 93
IV.MF5.EHZ. 2021-05-23T11:46:48.30 0.6 undecidable manual S 104 28.749 107 0.51 44
IV.RM33.EHZ. 2021-05-23T11:46:46.16 3.0 undecidable manual S 0
IV.NRCA.HNZ. 2021-05-23T11:46:46.11 0.6 undecidable manual S 180 23.9538 110 -0.09 48
IV.GAVE.HNZ. 2021-05-23T11:46:45.56 0.1 undecidable manual P 204 43.5231 50 -0.19 92
IV.MF5.EHZ. 2021-05-23T11:46:44.32 1.0 undecidable manual P 104 28.749 107 0.95 18
IV.CESI.HHZ. 2021-05-23T11:46:44.84 0.6 undecidable manual S 254 17.7711 116 0.62 43
IV.MC2.EHZ. 2021-05-23T11:46:43.90 0.6 undecidable manual S 159 16.4724 118 0.08 49
IT.MTCL.HGZ. 2021-05-23T11:46:42.31 0.6 undecidable manual S 237 11.1777 128 0.02 50
IV.NRCA.HNZ. 2021-05-23T11:46:42.27 0.1 undecidable manual P 180 23.9538 110 -0.18 95
IV.RM33.EHZ. 2021-05-23T11:46:42.25 3.0 undecidable manual P -0.02 0
IV.MML1.EHE. 2021-05-23T11:46:42.84 0.6 undecidable manual S 302 13.5753 123 -0.13 49
IV.MC2.EHZ. 2021-05-23T11:46:41.12 0.6 negative manual P 159 16.4724 118 0.04 49
IV.CSP1.EHZ. 2021-05-23T11:46:41.31 0.6 undecidable manual S 57 8.6802 136 -0.33 47
IV.CESI.HHZ. 2021-05-23T11:46:41.46 1.0 positive manual P 254 17.7711 116 0.15 24
IV.MML1.EHE. 2021-05-23T11:46:40.70 0.1 undecidable manual P 302 13.5753 123 0.11 98
IT.MTCL.HGZ. 2021-05-23T11:46:40.45 0.1 undecidable manual P 237 11.1777 128 0.25 96
IV.FDMO.HHE. 2021-05-23T11:46:40.07 0.6 undecidable manual S 237 2.6973 163 -0.47 46
IV.CSP1.EHZ. 2021-05-23T11:46:39.76 0.1 undecidable manual P 57 8.6802 136 -0.06 100
IV.FDMO.HHE. 2021-05-23T11:46:39.04 0.1 undecidable manual P 237 2.6973 163 -0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:0.2 0.000013125522 0.2432 AML other m 2021-05-23T11:46:46.16
IV.CESI.HHN. ML:0.6 0.00003169507 0.1408 AML other m 2021-05-23T11:46:44.92
IV.CESI.HNE. ML:1.1 0.00010687404000000001 0.8192 AML other m 2021-05-23T11:46:44.48
IV.CESI.HNN. ML:1.0 0.00008960021 1.6384 AML other m 2021-05-23T11:46:45.57
IV.RM33.EHE. ML:0.9 0.000013103940000000001 0.0768 AML other m 2021-05-23T11:46:46.76
IV.RM33.EHN. ML:0.9 0.000013198544999999999 0.5376 AML other m 2021-05-23T11:46:47.64
IV.RM33.HNE. ML:1.8 0.0001343825 0.9984 AML other m 2021-05-23T11:46:45.54
IV.RM33.HNN. ML:1.5 0.000069490025 0.9984 AML other m 2021-05-23T11:46:46.53
IV.MF5.EHE. ML:1.4 0.00011349870000000001 1.4976 AML other m 2021-05-23T11:46:50.42
IV.MF5.EHN. ML:1.4 0.00012476195 2.4 AML other m 2021-05-23T11:46:46.04
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