Earthquake with magnitude of ML 1.9 on date 21-05-2020 and time 03:47:03 (Italy) in region 3 km SW Caldarola (MC)

A magnitude ML 1.9 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) 43.12, 13.2 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
Caldarola MC 3 1823 1823
Cessapalombo MC 5 512 2335
Camporotondo di Fiastrone MC 6 563 2898
Belforte del Chienti MC 6 1886 4784
Serrapetrona MC 6 966 5750
San Ginesio MC 10 3498 9248
Fiastra MC 10 559 9807
Acquacanina MC 11 121 9928
Camerino MC 11 6974 16902
Pievebovigliana MC 12 866 17768
Tolentino MC 12 20069 37837
San Severino Marche MC 12 12726 50563
Sarnano MC 13 3264 53827
Gualdo MC 13 815 54642
Fiordimonte MC 13 202 54844
Muccia MC 13 915 55759
Colmurano MC 14 1263 57022
Ripe San Ginesio MC 14 852 57874
Bolognola MC 14 142 58016
Pieve Torina MC 15 1458 59474
Castelraimondo MC 15 4587 64061
Sant'Angelo in Pontano MC 16 1436 65497
Urbisaglia MC 17 2628 68125
Gagliole MC 17 620 68745
Loro Piceno MC 18 2401 71146
Pioraco MC 19 1134 72280
Penna San Giovanni MC 20 1108 73388

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
61 Km SW of Ancona (100861 inhabitants)
66 Km E of Perugia (166134 inhabitants)
66 Km NW of Teramo (54892 inhabitants)
77 Km NE of Terni (111501 inhabitants)
82 Km S of Fano (60888 inhabitants)
87 Km N of L'Aquila (69753 inhabitants)
91 Km S of Pesaro (94582 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled 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
Rev 100 ML 1.9 2020-05-21
01:47:03
43.12 13.2 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 ± 0.2
Latitude 43.12 ± 0.01
Longitude 13.20 ± 0.01
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 79389281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 706
Semi-minor axis of confidence ellipse (meter) 214
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 710
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.29588
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitude information

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 Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-05-21T01:47:24.27 3.0 undecidable manual S -0.15 0
IV.ARVD.HHZ. 2020-05-21T01:47:19.67 3.0 undecidable manual S 0.09 0
IV.NRCA.HHZ. 2020-05-21T01:47:15.37 0.3 undecidable manual S 192 0.2959 50 0.3 68
IV.TERO.HHZ. 2020-05-21T01:47:14.80 3.0 undecidable manual P -0.4 0
IV.CESI.HHZ. 2020-05-21T01:47:13.56 0.6 undecidable manual S 241 0.2464 108 0.32 46
IV.MMO1.EHZ. 2020-05-21T01:47:12.63 0.3 undecidable manual S 157 0.2419 108 -0.46 66
IV.MC2.EHZ. 2020-05-21T01:47:12.23 0.3 undecidable manual S 182 0.2113 110 0.24 70
IV.SNTG.HHZ. 2020-05-21T01:47:12.64 0.3 undecidable manual S 305 0.2302 109 -0.03 73
IV.ASSB.HHZ. 2020-05-21T01:47:11.74 3.0 positive manual P -0.11 0
IV.SAP2.EHZ. 2020-05-21T01:47:10.48 0.3 undecidable manual S 100 0.1475 118 0.75 61
IV.MNTT.EHZ. 2020-05-21T01:47:10.68 3.0 positive manual P 0.53 0
IV.CESI.HHZ. 2020-05-21T01:47:09.07 0.1 positive manual P 241 0.2464 108 0.03 97
IV.NRCA.HHZ. 2020-05-21T01:47:09.69 0.3 positive manual P 192 0.2959 50 -0.41 66
IV.MMO1.EHZ. 2020-05-21T01:47:08.59 0.6 negative manual P 157 0.2419 108 -0.36 45
IV.MC2.EHZ. 2020-05-21T01:47:08.30 0.6 negative manual P 182 0.2113 110 -0.01 49
IV.FDMO.HHZ. 2020-05-21T01:47:08.95 0.3 undecidable manual S 224 0.1196 123 0.16 72
IV.SNTG.HHZ. 2020-05-21T01:47:08.52 0.1 undecidable manual P 305 0.2302 109 -0.19 94
IV.EL6.EHZ. 2020-05-21T01:47:08.71 0.1 undecidable manual P 341 0.2185 110 0.26 93
IV.GUMA.HHZ. 2020-05-21T01:47:08.99 0.3 undecidable manual S 121 0.116 124 0.32 70
IV.FDMO.HHZ. 2020-05-21T01:47:06.59 0.1 positive manual P 224 0.1196 123 0.12 98
IV.CSP1.EHZ. 2020-05-21T01:47:06.05 0.3 undecidable manual S 174 0.0315 158 -0.48 69
IV.GUMA.HHZ. 2020-05-21T01:47:06.63 0.1 positive manual P 121 0.116 124 0.23 95
IV.CSP1.EHZ. 2020-05-21T01:47:05.08 0.1 negative manual P 174 0.0315 158 -0.08 100
IV.SAP2.EHZ. 2020-05-21T01:47:05.94 0.3 negative manual P 100 0.1475 118 -1.07 53
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:2 0.0012 0.16 AML other m 2020-05-21T01:47:09.13
IV.FDMO.HHN. ML:1.7 0.000619 0.22 AML other m 2020-05-21T01:47:09.09
IV.GUMA.HNE. ML:2.1 0.00162 0.3 AML other m 2020-05-21T01:47:09.30
IV.GUMA.HHE. ML:2.5 0.003415 0.22 AML other m 2020-05-21T01:47:09.27
IV.GUMA.HHN. ML:2.1 0.001565 0.22 AML other m 2020-05-21T01:47:09.26
IV.GUMA.HNN. ML:2.4 0.00274 0.3 AML other m 2020-05-21T01:47:09.14
IV.SNTG.HHE. ML:1.2 8.68E-5 1.48 AML other m 2020-05-21T01:47:12.75
IV.SNTG.HHN. ML:1.3 0.000118 1.54 AML other m 2020-05-21T01:47:12.02
IV.CESI.HHE. ML:1.6 0.0002275 0.56 AML other m 2020-05-21T01:47:15.63
IV.NRCA.HHE. ML:2 0.0004405 0.8 AML other m 2020-05-21T01:47:15.92
IV.NRCA.HNE. ML:2 0.000442 0.82 AML other m 2020-05-21T01:47:15.93
IV.NRCA.HHN. ML:2 0.0004985 0.1 AML other m 2020-05-21T01:47:16.45
IV.NRCA.HNN. ML:2 0.000438 0.1 AML other m 2020-05-21T01:47:16.45
IV.CESI.HHN. ML:1.5 0.000162 0.44 AML other m 2020-05-21T01:47:17.44
IV.MNTT.EHN. ML:2.1 0.0006105 0.56 AML other m 2020-05-21T01:47:18.44
IV.MNTT.EHE. ML:2 0.000537 0.9 AML other m 2020-05-21T01:47:18.81
IV.TERO.HHN. ML:1.8 0.00010275 1.1 AML other m 2020-05-21T01:47:24.92
IV.TERO.HHE. ML:1.7 9.19E-5 0.88 AML other m 2020-05-21T01:47:25.83
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download