Earthquake with magnitude of Md 3.0 on date 20-12-1990 and time 17:50:52 (Italy) in region 2 km SE Montelupone (MC)

A magnitude Md 3.0 earthquake occured in region: 2 km SE Montelupone (MC), on

  • 20-12-1990 16:50:52 (UTC)
  • 20-12-1990 17:50:52 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.3350, 13.5890 at 5 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Montelupone MC 2 3596 3596
Morrovalle MC 2 10195 13791
Montecosaro MC 4 7113 20904
Potenza Picena MC 4 15936 36840
Recanati MC 8 21349 58189
Monte San Giusto MC 11 8191 66380
Corridonia MC 12 15430 81810
Macerata MC 12 42473 124283
Civitanova Marche MC 12 41983 166266
Montegranaro FM 12 12990 179256
Loreto AN 12 12814 192070
Porto Recanati MC 12 12531 204601
Montecassiano MC 13 7125 211726
Sant'Elpidio a Mare FM 14 17110 228836
Montefano MC 15 3541 232377
Castelfidardo AN 15 18733 251110
Monte Urano FM 16 8353 259463
Monte San Pietrangeli FM 16 2458 261921
Petriolo MC 16 1998 263919
Porto Sant'Elpidio FM 16 26152 290071
Francavilla d'Ete FM 16 964 291035
Torre San Patrizio FM 17 2048 293083
Mogliano MC 19 4696 297779
Osimo AN 19 34977 332756
Rapagnano FM 19 2145 334901
Appignano MC 20 4213 339114

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km S of Ancona (100861 inhabitants)
73 Km SE of Fano (60888 inhabitants)
76 Km N of Teramo (54892 inhabitants)
83 Km NE of Foligno (57155 inhabitants)
84 Km SE of Pesaro (94582 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
Md 3.0
ML-VAX 2.2
1990-12-20
16:50:52
43.335 13.589 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 132839
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1990-12-20 16:50:52 ± 0.239
Latitude 43.3350 ± 0.0098
Longitude 13.5890 ± 0.0197
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 132839

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 1931.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 179
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.6
Epicentral distance of station closest to the epicenter (degree) 0.00113
Epicentral distance of station farthest from the epicenter (degree) 0.01611
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitudes information

Md:3.0

Field Value
Value 3.0
Uncertainty
Num. used stations 5
Type of magnitude Md
Reference to an origin 132839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 19:03:46

ML:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude ML
Reference to an origin 132839
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.SDI.Z. 1990-12-20T16:51:44.00 10.0 undecidable manual SN 174 0.0147 0.8 0.3
--.CRE.Z. 1990-12-20T16:51:34.00 10.0 undecidable manual SN 283 0.0109 0.59 0.4
--.AQU.Z. 1990-12-20T16:51:27.99 10.0 undecidable manual SG 187 0.0089 0.8 0.3
--.DUI.Z. 1990-12-20T16:51:27.00 10.0 undecidable manual PN! 158 0.0161 3.02 0
--.SDI.Z. 1990-12-20T16:51:24.47 10.0 undecidable manual PN! 174 0.0147 2.69 0
--.CP9.Z. 1990-12-20T16:51:21.54 10.0 undecidable manual PN 197 0.0138 0.96 0.5
--.SFI.Z. 1990-12-20T16:51:20.76 10.0 undecidable manual PN! 294 0.0124 2.43 0
--.ASS.Z. 1990-12-20T16:51:18.30 10.0 undecidable manual SG 248 0.0066 -0.95 0.3
--.CRE.Z. 1990-12-20T16:51:17.75 10.0 undecidable manual PN 283 0.0109 1.63 0.1
--.ALP.Z. 1990-12-20T16:51:13.40 10.0 undecidable manual SG 181 0.0049 0.19 1
--.AQU.Z. 1990-12-20T16:51:13.50 10.0 undecidable manual PG 187 0.0089 0.52 1.2
--.ARV.Z. 1990-12-20T16:51:10.45 10.0 undecidable manual SG 289 0.0045 -0.86 0.3
--.CIO.Z. 1990-12-20T16:51:06.60 10.0 undecidable manual SG 246 0.0032 0.37 0.9
--.ASS.Z. 1990-12-20T16:51:06.97 10.0 positive manual PG 248 0.0066 -0.83 1.8
--.ARV.Z. 1990-12-20T16:51:04.00 10.0 undecidable manual PG 289 0.0045 0.63 1.2
--.ALP.Z. 1990-12-20T16:51:03.60 10.0 undecidable manual PG 181 0.0049 -0.86 1.7
--.AOI.Z. 1990-12-20T16:51:01.00 10.0 undecidable manual SG 2 0.0019 0.08 1
--.CIO.Z. 1990-12-20T16:50:59.90 10.0 undecidable manual PG 246 0.0032 -0.54 2.6
--.SSO.Z. 1990-12-20T16:50:58.40 10.0 undecidable manual SG 251 0.0011 0.58 0.8
--.AOI.Z. 1990-12-20T16:50:57.00 10.0 undecidable manual PG 2 0.0019 -0.37 3
--.SSO.Z. 1990-12-20T16:50:55.70 10.0 undecidable manual PG 251 0.0011 0.12 3.4
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download