Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 21-05-2020 and time 01:47:03 (UTC) in region 3 km SW Caldarola (MC)

A magnitude ML 1.7 earthquake occured in region: 3 km SW Caldarola (MC), on

  • 21-05-2020 01:47:03 (UTC)
  • 21-05-2020 03:47:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1250, 13.1950 at 8 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Caldarola MC 3 1823 1823
Cessapalombo MC 6 512 2335
Belforte del Chienti MC 6 1886 4221
Camporotondo di Fiastrone MC 6 563 4784
Serrapetrona MC 6 966 5750
San Ginesio MC 10 3498 9248
Fiastra MC 10 559 9807
Camerino MC 10 6974 16781
Acquacanina MC 11 121 16902
Pievebovigliana MC 11 866 17768
San Severino Marche MC 12 12726 30494
Tolentino MC 12 20069 50563
Fiordimonte MC 13 202 50765
Muccia MC 13 915 51680
Sarnano MC 13 3264 54944
Gualdo MC 13 815 55759
Colmurano MC 14 1263 57022
Ripe San Ginesio MC 14 852 57874
Castelraimondo MC 15 4587 62461
Bolognola MC 15 142 62603
Pieve Torina MC 15 1458 64061
Gagliole MC 16 620 64681
Sant'Angelo in Pontano MC 17 1436 66117
Urbisaglia MC 17 2628 68745
Pioraco MC 18 1134 69879
Loro Piceno MC 19 2401 72280

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
61 Km SW of Ancona (100861 inhabitants)
65 Km E of Perugia (166134 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
77 Km NE of Terni (111501 inhabitants)
81 Km S of Fano (60888 inhabitants)
88 Km N of L'Aquila (69753 inhabitants)
90 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
Bulletin
Rev1000 		ML 1.7 2020-05-21
01:47:03		 43.1248 13.1952 8 2020-11-19
12:36:47		 Bollettino Sismico Italiano INGV 79861181
Reviewed
Rev100 		ML 1.9 2020-05-21
01:47:03		 43.1232 13.2002 9 2020-05-21
01:52:57		 Sala Sismica INGV-Roma 79389281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-21 01:47:03 ± 0.06
Latitude 43.1248 ± 0.0036
Longitude 13.1952 ± 0.0049
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 79861181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 385
Semi-minor axis of confidence ellipse (meter) 147
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 44
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.01349
Epicentral distance of station farthest from the epicenter (degree) 0.58456
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 79861181
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-03 13:40:56

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 79389281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-21 01:52:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1299.HNN. 2020-05-21T01:47:21.57 0.6 undecidable manual S 173 54.9006 50 0.49 42
IV.SSFR.HHN. 2020-05-21T01:47:19.69 0.6 undecidable manual S 316 48.0186 50 0.44 43
IV.ASSB.HHZ. 2020-05-21T01:47:18.01 0.6 undecidable manual S 258 44.4222 50 -0.27 45
IV.MTRA.EHE. 2020-05-21T01:47:17.80 0.6 undecidable manual S 158 44.0226 50 -0.37 44
IV.MNTT.EHZ. 2020-05-21T01:47:15.94 0.6 undecidable manual S 102 33.1446 104 0.69 41
IV.NRCA.HHZ. 2020-05-21T01:47:15.37 0.3 undecidable manual S 192 32.9448 104 0.2 70
IV.TERO.HHZ. 2020-05-21T01:47:14.80 0.3 undecidable manual P 149 64.8906 50 -0.33 64
IV.CING.HNZ. 2020-05-21T01:47:13.37 0.6 undecidable manual S 0 27.8499 107 -0.08 48
IV.CESI.HHZ. 2020-05-21T01:47:13.56 0.6 undecidable manual S 241 27.0507 107 0.37 46
IV.T1299.HNN. 2020-05-21T01:47:13.39 0.3 undecidable manual P 173 54.9006 50 -0.2 67
IV.FRON.EHZ. 2020-05-21T01:47:13.76 0.6 undecidable manual P 319 57.7977 50 -0.28 44
IV.SSFR.HHN. 2020-05-21T01:47:12.79 0.3 undecidable manual P 316 48.0186 50 0.25 68
IV.MC2.EHZ. 2020-05-21T01:47:12.23 0.3 undecidable manual S 181 23.6541 109 0.15 72
IV.SNTG.HHZ. 2020-05-21T01:47:12.64 0.3 undecidable manual S 305 25.1526 108 0.07 73
IV.ATCC.EHE. 2020-05-21T01:47:12.03 0.3 undecidable manual P 279 45.4212 50 -0.11 70
IV.ARVD.HHZ. 2020-05-21T01:47:12.44 0.6 undecidable manual P 334 46.2204 50 0.18 46
IV.MMO1.EHZ. 2020-05-21T01:47:12.63 0.3 undecidable manual S 157 27.1506 107 -0.62 64
IV.FEMA.HNE. 2020-05-21T01:47:11.87 0.6 undecidable manual S 213 21.5673 111 0.48 45
IT.MTCL.HGZ. 2020-05-21T01:47:11.73 0.6 undecidable manual S 228 21.4674 111 0.35 46
IV.ASSB.HHZ. 2020-05-21T01:47:11.74 0.1 positive manual P 258 44.4222 50 -0.24 91
IV.MTRA.EHE. 2020-05-21T01:47:11.26 0.3 undecidable manual P 158 44.0226 50 -0.66 61
IV.MML1.HNE. 2020-05-21T01:47:10.90 0.6 undecidable manual S 266 18.1707 115 0.6 43
IV.MNTT.EHZ. 2020-05-21T01:47:10.68 0.1 positive manual P 102 33.1446 104 0.45 89
IV.SAP2.EHZ. 2020-05-21T01:47:10.48 0.3 undecidable manual S 101 16.7721 116 0.59 65
IV.NRCA.HHZ. 2020-05-21T01:47:09.69 0.3 positive manual P 192 32.9448 104 -0.5 66
IV.CESI.HHZ. 2020-05-21T01:47:09.07 0.1 positive manual P 241 27.0507 107 0.03 98
IV.MMO1.EHZ. 2020-05-21T01:47:08.59 0.6 negative manual P 157 27.1506 107 -0.48 45
IV.EL6.EHZ. 2020-05-21T01:47:08.71 0.1 undecidable manual P 342 23.9538 109 0.26 94
IV.CING.HNZ. 2020-05-21T01:47:08.72 0.3 undecidable manual P 0 27.8499 107 -0.47 67
IV.FEMA.HNE. 2020-05-21T01:47:08.11 0.3 undecidable manual P 213 21.5673 111 0.11 73
IT.MTCL.HGZ. 2020-05-21T01:47:08.09 0.1 undecidable manual P 228 21.4674 111 0.1 98
IV.MC2.EHZ. 2020-05-21T01:47:08.30 0.6 negative manual P 181 23.6541 109 -0.1 49
IV.FDMO.HHZ. 2020-05-21T01:47:08.95 0.3 undecidable manual S 222 13.0758 123 0.18 73
IV.MNTP.HNZ. 2020-05-21T01:47:08.41 0.3 undecidable manual P 86 22.2555 111 0.28 70
IV.SNTG.HHZ. 2020-05-21T01:47:08.52 0.1 undecidable manual P 305 25.1526 108 -0.16 96
IV.GUMA.HHZ. 2020-05-21T01:47:08.99 0.3 undecidable manual S 121 13.2756 122 0.17 73
IV.MML1.HNE. 2020-05-21T01:47:07.53 0.1 positive manual P 266 18.1707 115 0.16 97
IV.SAP2.EHZ. 2020-05-21T01:47:07.36 0.3 undecidable manual P 101 16.7721 116 0.22 72
IV.FDMO.HHZ. 2020-05-21T01:47:06.59 0.1 positive manual P 222 13.0758 123 0.1 99
IV.CSP1.EHZ. 2020-05-21T01:47:06.05 0.3 undecidable manual S 168 3.6963 156 -0.5 69
IV.GUMA.HHZ. 2020-05-21T01:47:06.63 0.1 positive manual P 121 13.2756 122 0.11 99
IV.CSP1.EHZ. 2020-05-21T01:47:05.08 0.1 negative manual P 168 3.6963 156 -0.13 100
IV.PF6.EHN. 2020-05-21T01:47:05.53 0.3 undecidable manual S 358 1.4985 170 -0.79 62
IV.PF6.EHN. 2020-05-21T01:47:04.72 0.1 negative manual P 358 1.4985 170 -0.35 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CSP1.EHE. ML:0.0 0.0025393085000000003 0.12 AML other m 2020-05-21T01:47:06.60
IV.CSP1.EHN. ML:0.0 0.0030670245 0.22 AML other m 2020-05-21T01:47:07.12
IV.FDMO.HHN. ML:1.7 0.0006194109999999999 0.22 AML other m 2020-05-21T01:47:09.09
IV.FDMO.HHE. ML:2.0 0.0011971625 0.16 AML other m 2020-05-21T01:47:09.13
IV.GUMA.HHN. ML:2.1 0.001564275 0.22 AML other m 2020-05-21T01:47:09.26
IV.GUMA.HNN. ML:2.4 0.0027428755000000003 0.3 AML other m 2020-05-21T01:47:09.14
IV.SNTG.HHN. ML:1.3 0.0001146757 0.34 AML other m 2020-05-21T01:47:12.96
IV.SNTG.HHE. ML:1.2 0.000085739265 0.26 AML other m 2020-05-21T01:47:12.75
IV.EL6.EHN. ML:1.4 0.00016071815 0.32 AML other m 2020-05-21T01:47:14.45
IV.EL6.EHE. ML:1.4 0.00017426665 0.48 AML other m 2020-05-21T01:47:15.07
IV.CESI.HNN. ML:1.5 0.00016563275 0.24 AML other m 2020-05-21T01:47:14.45
IV.CESI.HHN. ML:1.4 0.000138102 0.16 AML other m 2020-05-21T01:47:14.95
IV.NRCA.HHN. ML:2.1 0.000498108 0.1 AML other m 2020-05-21T01:47:16.45
IV.NRCA.HNN. ML:2.0 0.0004377067 0.1 AML other m 2020-05-21T01:47:16.45
IV.NRCA.HNE. ML:2.0 0.00039028929999999993 0.1 AML other m 2020-05-21T01:47:15.93
IV.NRCA.HHE. ML:2.0 0.00043489325000000003 0.1 AML other m 2020-05-21T01:47:15.92
IV.MNTT.EHE. ML:2.0 0.0004605288 0.3 AML other m 2020-05-21T01:47:16.72
IV.MNTT.EHN. ML:2.1 0.0005280641 0.22 AML other m 2020-05-21T01:47:18.44
IV.ASSB.HHE. ML:1.4 0.000069783785 0.14 AML other m 2020-05-21T01:47:21.20
IV.ASSB.HHN. ML:1.4 0.000076555205 0.18 AML other m 2020-05-21T01:47:20.08
IV.TERO.HHN. ML:1.6 0.000078135435 0.14 AML other m 2020-05-21T01:47:25.37
IV.TERO.HHE. ML:1.6 0.00007177725 0.1 AML other m 2020-05-21T01:47:25.26
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